Transource PA, LLC, & PPL Electric Utilities Corp. v. PA PUC ( 2022 )


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  •            IN THE COMMONWEALTH COURT OF PENNSYLVANIA
    Transource Pennsylvania, LLC, and          :
    PPL Electric Utilities Corporation,        :
    Petitioners      :
    :
    v.                     :   No. 689 C.D. 2021
    :   Argued: March 7, 2022
    Pennsylvania Public Utility                :
    Commission,                                :
    Respondent        :
    BEFORE:      HONORABLE RENÉE COHN JUBELIRER, President Judge
    HONORABLE ELLEN CEISLER, Judge
    HONORABLE LORI A. DUMAS, Judge
    OPINION NOT REPORTED
    MEMORANDUM OPINION BY
    PRESIDENT JUDGE COHN JUBELIRER                 FILED: May 5, 2022
    Transource Pennsylvania, LLC (Transource) and PPL Electric Utilities
    Corporation (PPL) (together, Petitioners) petition for review of the May 24, 2021
    Opinion and Order of the Pennsylvania Public Utility Commission (Commission)
    that, in relevant part, denied an application and an amended application for the siting
    and construction of two high-voltage (HV) transmission lines related to the
    Independence Energy Connection (IEC) Project in Franklin and York Counties,
    Pennsylvania (Siting Applications), and rescinded the provisional certificate of
    public convenience (CPC) that the Commission had previously granted Transource
    for the IEC Project. The Commission concluded that there was no error or abuse of
    discretion in the Administrative Law Judge’s (ALJ) determination that Transource
    failed to establish the requisite need for the IEC Project under Section 57.76(a)(1)
    of the Commission’s Regulations (Regulations), 
    52 Pa. Code § 57.76
    (a)(1), or met
    the requirements of Section 1501 of the Public Utility Code (Code), 66 Pa.C.S.
    § 1501. The Commission held that the ALJ’s findings of fact were supported by
    substantial evidence, in the form of the credited evidence submitted by opposing or
    objecting parties. The Commission further concluded that the ALJ’s determinations,
    including that the Commission could evaluate the need for the IEC Project for
    purposes of Pennsylvania law independently of the evaluation of need for the IEC
    Project that had been performed by PJM Interconnection LLC (PJM), were
    consistent with the Code, the Regulations, and Pennsylvania law.1
    On appeal, Petitioners argue that the Commission erred in interpreting Section
    1501 of the Code and Section 57.76(a)(1) of the Regulations and used an incorrect
    standard in denying the Siting Applications. Petitioners assert that the findings of
    fact necessary to support the conclusion of a lack of need or necessity for the IEC
    Project were not supported by substantial evidence. As part of its evidentiary
    challenge, Petitioners assert that the Commission erred in rejecting PJM’s findings
    as evidence of need for the IEC Project under Pennsylvania law and in focusing only
    on the negative impacts on local rates. Finally, Petitioners maintain that the
    Commission erred in rescinding the provisional CPC and not resolving the merits of
    Petitioners’ other Exceptions based on its decision on the Siting Applications, and,
    therefore, this matter must be remanded.
    1
    The ALJ also recommended denying the Siting Applications because Transource did not
    establish that it met the requirements of the other subparts of Section 57.76(a) of the Regulations
    and denying applications related to the construction of structures related to the IEC Project in
    Franklin and York Counties and to exercise the power of eminent domain over properties in
    Franklin County. (Recommended Decision (R.D.) at 103-24, Order.) Petitioners filed Exceptions
    to these determinations, but because the Commission affirmed the denial of the Siting Applications
    on the lack of need, it did not specifically address these Exceptions beyond finding that they were
    moot. (Commission Opinion and Order (Op. and Order) at 64-65, 67-73.)
    2
    The Commission and Intervenors, the Office of Consumer Advocate (OCA),
    the County of Franklin (Franklin County), and Stop Transource Franklin County
    (STFC), respond that the Commission’s interpretations of the Code and the
    Regulations were not clearly erroneous and, therefore, are entitled to deference.
    They further argue that the Commission applied the correct standard in determining
    that Transource did not meet its burden of proof on the Siting Applications and
    rescinding the provisional CPC. The Commission and Franklin County also assert
    that Petitioners have waived certain of these issues as they had not been raised before
    the Commission. Intervenors and the Commission further argue that the findings of
    fact are supported by substantial evidence and that Petitioners’ arguments to the
    contrary improperly seek to have this Court reweigh the evidence or to preclude the
    Commission from performing its own evidentiary review and consideration of the
    IEC Project. Finally, the Commission asserts there was no error in it not considering
    Petitioners’ other Exceptions based on its determination on the Siting Applications.
    I.    BACKGROUND
    A. Relevant Statutory Provisions
    This matter involves the denial of the Siting Applications and the rescission
    of Transource’s provisional CPC pursuant to Section 57.76(a) of the Regulations
    and Section 1501 of the Code. Section 1501 of the Code addresses, generally, the
    character of services and facilities of a public utility and provides, in pertinent part:
    Every public utility shall furnish and maintain adequate, efficient, safe,
    and reasonable service and facilities, and shall make all such repairs,
    changes, alterations, substitutions, extensions, and improvements in or
    to such service and facilities as shall be necessary or proper for the
    accommodation, convenience, and safety of its patrons, employees, and
    the public. . . . Such service and facilities shall be in conformity with
    the regulations and orders of the [C]ommission.
    3
    66 Pa.C.S. § 1501. Section 57.76(a) of the Regulations relates to the siting and
    construction of HV lines and states:
    (a) The Commission will issue its order, with its opinion, if any, either
    granting or denying the application, in whole or in part, as filed or
    upon the terms, conditions or modifications, of the location,
    construction, operation or maintenance of the line as the
    Commission may deem appropriate. The Commission will not grant
    the application, either as proposed or as modified, unless it finds and
    determines as to the proposed HV line:
    (1) That there is a need for it.
    
    52 Pa. Code § 57.76
    (a)(1). Pursuant to Section 57.75(e)(1) of the Regulations, in
    reviewing a siting application, the Commission must accept evidence of, among
    other things, the “present and future necessity of the proposed HV line in furnishing
    service to the public.” 
    52 Pa. Code § 57.75
    (e)(1).
    In addition, this matter implicates Pennsylvania’s participation in regional
    interstate power pools with other states, which is addressed in Section 2805(a) of the
    Code. Section 2805(a) provides:
    The [C]ommission shall take all necessary and appropriate steps to
    encourage interstate power pools to enhance competition and to
    complement industry restructuring on a regional basis.               The
    Commonwealth, the [C]ommission and Pennsylvania electric utilities
    shall work with the Federal Government, other states in the region and
    interstate power pools to accomplish the goals of restructuring and to
    establish independent system operators or their functional equivalents
    to operate the transmission system and interstate power pools. The
    [C]ommission, Pennsylvania electric utilities and all electricity
    suppliers shall work with the Federal Government, other states in the
    region, the North American Electric Reliability Council [(NERC)] and
    its regional coordinating councils or their successors, interstate power
    pools, and with the independent system operator or its functional
    equivalent to ensure the continued provision of adequate, safe and
    reliable electric service to the citizens and businesses of this
    Commonwealth.
    4
    66 Pa.C.S. § 2805(a).2
    B. The IEC Project and Transource
    In 2014, PJM, the Regional Transmission Organization charged with
    managing electric utilities transmission systems in 13 states (PJM Region), that
    includes most of Pennsylvania, Maryland, Virginia, and West Virginia, performed
    an annual Regional Transmission Extension Plan (RTEP) of the PJM Region.
    (Commission Opinion and Order (Op. and Order) at 3.)3 As part of the RTEP, PJM
    conducted a market efficiency analysis to determine if there were areas where market
    congestion4 existed, which was found on the AP South Reactive Interface (APSRI).
    (Id.) “[O]n October 30, 2014, PJM opened a long-term RTEP proposal window”
    and sought “market efficiency proposals in order to alleviate congestion on the
    AP[SRI].” (Id.) During this process, it was projected that the “[c]ongestion on the
    AP[SRI] totaled approximately $800 million from 2012 to 2016.” (Id.)
    PJM received 41 proposals, and, on August 2, 2016, approved the market
    efficiency project, known as Project 9A, submitted by Transource Energy,
    Transource’s parent, to alleviate the APSRI congestion. (Id. at 2-3.) Project 9A is
    a set of 4,500 kV transmission lines originating in West Virginia and terminating in
    Maryland. (Id. at 3.) The IEC Project is the Pennsylvania portion of Project 9A,
    and consists of IEC West, located in Franklin County, and IEC East, located in York
    2
    Section 2805(a) is located in Chapter 28 of the Code, which deregulated Pennsylvania’s
    electric utility industry. See Section 2802 of the Code, 66 Pa.C.S. § 2802 (announcing the
    declaration of policy to, among other things, deregulate the electric utility industry to encourage
    greater competition in the wholesale electric market).
    3
    The Commission’s Opinion and Order is located at volume 7 pages 6427a through 6506a
    of the Reproduced Record.
    4
    “Congestion occurs when the least costly resources that are available to serve load in a
    given region cannot be dispatched because transmission facility limits constrain power flow on the
    system.” (Recommended Decision, Finding of Fact ¶ 35.)
    5
    County, and involves HV transmission lines from new substations in those counties
    to the Pennsylvania/Maryland border. (Id. at 3, 5-6.) Transource was “formed solely
    to carry out . . . Project 9A.” (Id. at 2-3.)
    Transource filed an “Application for All of the Necessary Authority,
    Approvals, and Certificates of Public Convenience” relating to the IEC Project on
    February 8, 2017. (Id. at 4.) The Commission recognized that Transource was “a
    new type of entity in” Pennsylvania and was formed only to “carry out a particular
    market efficiency project.” (Id. at 5 (internal quotations omitted).) On January 23,
    2018, the Commission issued the provisional CPC, and its provisional approval
    referenced, specifically, Project 9A, including the IEC Project, as a means to resolve
    congestion on the APSRI.5 (Id. at 4 (citing Application of Transource, Pennsylvania,
    LLC, Docket Nos. A-2017-2587821 & G-2017-2587822 (PUC Jan. 23, 2018)).)
    Although the provisional CPC was granted, “all parties reserved the right to
    challenge the need for the [IEC] Project when Transource file[d] a siting application
    with the Commission or to challenge any other project proposed by Transource.”
    (Id. at 5.) Transource subsequently filed additional applications relating to the
    construction of buildings or shelters and the exercise of eminent domain over various
    properties in Franklin and York Counties. (Id. at 8.) PPL, an intervenor in the
    Commission proceedings, became involved in the IEC East portion when it and
    Transource entered into an agreement allowing Transource to utilize PPL’s existing
    transmission infrastructure and rights-of-way for the IEC East portion of the IEC
    Project.6 (Id. at 14-16.) As the design of the IEC Project was altered, Transource
    5
    The approval of the provisional CPC was part of a settlement agreement.
    6
    As a result of this agreement, there was no need for Transource to use eminent domain in
    York County.
    6
    amended its various applications, including by adding PPL to the applications
    relevant to the IEC East portion.
    C. Proceedings Before the ALJ and the Recommended Decision
    Transource’s applications were assigned to an ALJ7 for disposition. OCA,
    STFC, and Franklin County, among others, intervened before the ALJ, with other
    landowners, citizens, and entities filing protests.8 Between January 8, 2018, and
    September 25, 2020, the ALJ held prehearing conferences, public input sessions, site
    visits, and evidentiary hearings, and the parties served and submitted their respective
    written submissions.
    1. Evidence
    Transource filed written direct, rebuttal, and rejoinder statements setting forth
    its experts’ testimonies, as well as reports and studies, in support of its applications.
    Several of its witnesses were cross-examined at evidentiary hearings before the ALJ.
    Through this evidence, Transource sought to establish that the IEC Project satisfied
    the need requirements of the Code and the Regulations through PJM’s cost-benefit
    analysis, which was approved by the Federal Energy Regulatory Commission
    (FERC), and is based on a 15-year projection of costs of a proposed project and
    annual benefits for the first 15 years of the Project’s life. (Recommended Decision
    (R.D.), Findings of Fact (FOF) ¶¶ 39, 41, 66.)9 Multiple re-evaluations continued to
    show that the IEC Project met PJM’s cost-benefit analysis, thereby reflecting that it
    7
    Initially, the matter was assigned to two ALJs, but the second ALJ no longer participated
    after March 1, 2020.
    8
    The Office of Small Business Advocate (OSBA) and various affected landowners and
    entities were also granted intervenor status. (Op. and Order at 7-8.)
    9
    The Recommended Decision is located at volume 5 pages 4768a through 4901a of the
    Reproduced Record.
    7
    continued to meet that standard. (R.D. at 66-67.) Transource offered former
    Commission Chairman James Cawley’s testimony that no group is entitled to the
    artificially lowered costs that result from market congestion and that considering the
    benefits of congestion would be unreasonable because it would perpetrate
    discriminatory rates. (Id. at 71-72.) Transource’s witnesses further asserted that the
    IEC Project resolved congestion within the APSRI but was not intended to just
    address congestion there but also elsewhere in the region, including the AP South
    Area and “related constraints.” (Id. at 72-73.)
    Transource offered the testimony of PJM’s vice president, Steven Herling,
    who stated that congestion and reliability issues are often related. (Id. at 67, 74.) It
    further presented evidence that, in November 2018, which was after OCA presented
    direct testimony on the Siting Applications, PJM ran a single generation
    deliverability study without the IEC Project. (FOF ¶¶ 83, 85.) That study revealed
    five potential NERC reliability violations that could occur in 2023, which were
    resolved by the IEC Project. (Id. ¶ 83, R.D. at 68.) Mr. Herling further testified that
    if the IEC Project is not constructed, PJM would have to find an alternative solution,
    and there was not enough time to address those reliability violations. (R.D. at 68-
    69.)   Transource further argued that the IEC Project provided benefits to
    Pennsylvania beyond resolving market congestion and reliability issues, including
    providing Pennsylvania generators with better access to markets and participating in
    regional planning through PJM, as testified to by Mr. Cawley. (Id. at 71.)
    Intervenors filed written statements, surrebuttal and supplemental surrebuttal
    statements with their experts’ testimonies in opposition to the IEC Project. This
    evidence raised questions regarding the ongoing need for the IEC Project where
    Transource continued to rely on outdated data and the congestion in the APSRI did
    8
    not occur as predicted and, therefore, the identified purpose for the IEC Project was
    no longer valid. (R.D. at 75-76.) For example, while congestion costs in the APSRI
    in 2014 were approximately $468.8 million, in 2016 and 2017, those costs,
    respectively, were $16.8 million and $21.6 million, and, by 2019, congestion costs
    were $14.5 million. (FOF ¶¶ 51-52, 55.) Further, evidence showed that demand for
    the PJM Region in general has decreased and that congestion event hours on the
    APSRI has dropped considerably since 2015. (Id. ¶¶ 57-58.) OCA submitted
    evidence reflecting that there have been recommendations to reevaluate PJM’s
    market efficiency process and that PJM’s cost-benefit analysis did not consider any
    increased costs or negative consequences to ratepayers elsewhere in the PJM Region
    that are caused by constructing a market efficiency project. (Id. ¶¶ 45-46, 61-62,
    117.) When such consequences were considered, the savings derived from the IEC
    Project, which was estimated to cost $500 million, would decrease wholesale power
    prices in some areas by approximately $845 million but would increase those prices
    in other areas by $812 million, resulting in a net benefit of only around $32 million
    over 15 years. (Id. ¶¶ 65, 110.)
    OCA offered other evidence reflecting that the projected savings resulting
    from the IEC Project would not be born out when other factors, including changes
    in energy generation, were considered or under the additional simulations performed
    by PJM. (Id. ¶¶ 73-81, 89, 97-104.) Further, areas that once benefited from the IEC
    Project, both in Pennsylvania and elsewhere in the PJM Region, no longer benefited
    in PJM’s most recent simulations. (Id. ¶¶ 102, 104, 107-08.) In Pennsylvania, the
    IEC Project would lower wholesale power prices in certain areas of Pennsylvania by
    about $60 million over the first 15 years of the IEC Project but would increase power
    9
    prices elsewhere in Pennsylvania by $429 million in the same period. (Id. ¶¶ 122,
    124.)10
    2. The Recommended Decision
    On December 22, 2020, the ALJ issued the Recommended Decision, which
    recommended denying the Siting Applications, as well as Transource’s other
    ancillary applications.       The ALJ held that the threshold issue was whether
    Transource had demonstrated, by substantial evidence, that the IEC Project was
    needed. According to the ALJ, Transource had to establish “that the IEC Project is
    necessary to maintain adequate, efficient, safe, and reasonable service and facilities,”
    pursuant to Section 1501 of the Code, and that there was a need for the HV
    transmission lines under Section 57.76(a) of the Regulations. (R.D. at 53.) Noting
    that the Commission’s grant of the provisional CPC did not contain a
    predetermination of need and was narrowly tailored to the IEC Project, the ALJ
    explained that “Transource may not construct the IEC [P]roject unless it can show
    that the [P]roject is necessary or proper, and in conformity with the [R]egulations .
    . . , which govern transmission line siting” because an “unnecessary change
    constitutes inadequate service to the public.” (Id. at 53-54, 60.)
    The ALJ concluded that Transource had not shown need for the IEC Project
    as required by Section 57.76(a) of the Regulations and Section 1501 of the Code,
    and that PJM’s determination of need for the IEC Project in 2014-2015 to remove
    congestion on the APSRI did not definitively establish “need” for purposes of
    Pennsylvania law. The ALJ noted the question of whether resolving “congestion,”
    10
    Additional evidence was taken, and findings of fact made, related to the other factors
    under Section 57.76(a) of the Regulations, such as environmental impacts and reasonable
    alternatives.
    10
    alone, is sufficient to meet the need requirement under the Code and the Regulations
    had not yet been answered and that this Court in Energy Conservation Council of
    Pennsylvania v. Public Utility Commission, 
    995 A.2d 465
     (Pa. Cmwlth. 2010), did
    not resolve the issue, determining that reliability issues within the PJM Region
    supported the finding of need without consideration of “congestion.” (Id. at 82-83.)
    In reviewing the evidence and arguments, the ALJ was persuaded by
    Intervenors’ evidence that, even if there had been congestion on the APSRI in 2014-
    2015, it was no longer congested, and, therefore, did not support a need for the IEC
    Project. The ALJ accepted as persuasive evidence that Transource continued to rely
    on outdated data and on inaccurate projections to support an ongoing claim of need.
    (Id. at 83.) The ALJ determined that Transource had, throughout the majority of the
    proceedings, cited relieving congestion on the APSRI as the purpose of the IEC
    Project and only later raised the resolution of congestion in the AP South Area and
    potential NERC reliability violations as reasons for the IEC Project. (Id. at 83, 87-
    88.) Citing, among other things, the lateness of the assertion of these reasons, the
    lack of a full investigation into the reliability violations, the lack of details regarding
    the alleged new congestion, and the failure to include alternative bases to resolve the
    claimed projection in the calculation, the ALJ found the evidence was insufficient
    to support need. (Id. at 83-84, 86-93.) The ALJ determined that the benefits of the
    IEC Project had to be weighed against all the detrimental impacts, both economic
    and environmental, accepting the criticisms of PJM’s cost-benefit analysis used,
    including by PJM’s Independent Market Monitor. (Id. at 94-95, 97-101.) The ALJ
    concluded that, based on the credible evidence offered by Intervenors, the IEC
    Project would “not provide sufficient benefits to Pennsylvania or the PJM [R]egion
    as [a] whole,” because there would only be a net benefit of $32.5 million to the PJM
    11
    Region over a 15-year period, particularly where it was designed to “address a
    congestion constraint that has diminished to very low levels since the [IEC] Project
    was selected.” (Id. at 97-98, 101-02.)
    As for Transource’s arguments that PJM’s determination of need would be
    binding due to this matter involving issues of interstate regional transmission subject
    to FERC oversight, the ALJ held that the Commission was obligated to make an
    independent determination based on Pennsylvania law. (Id. at 82, 86, 99-102.) The
    ALJ further observed that while FERC has exclusive jurisdiction over the interstate
    transmission of electric energy and wholesale electric process, that jurisdiction was
    limited to matters that are not subject to state regulation. (Id. at 85 (citing Section
    824(a) of the Federal Power Act, 
    16 U.S.C. § 824
    (a)).) According to the ALJ, FERC
    recognized this limitation by stating that there is “longstanding state authority over
    certain matters that are relevant to transmission planning and expansion, such as
    matters relevant to siting, permitting, and construction” and that the FERC was in
    no way invoking “an exercise of authority over those specific substantive matters
    traditionally reserved to the states . . . .” (Id. (quoting Transmission Planning and
    Cost Allocation by Transmission Owning & Operating Pub. Utils., 76 Fed. Reg.
    ¶¶ 49,842, 49,861 (Aug. 11, 2011) (FERC Order No. 1000)).)               This means,
    according to the ALJ, that FERC Order No. 1000 was “not intended to dictate
    substantive outcomes” or to allow FERC to “determine what needs to be built, where
    it needs to be built, and who needs to build it.” (Id. at 85 n.13 (quoting S.C. Pub.
    Serv. Auth. v. Fed. Energy Reg. Comm’n, 
    762 F.3d 41
    , 57-58 (D.C. Cir. 2014)
    (internal quotation marks and citation omitted)).)
    For these reasons, the ALJ issued the Recommended Decision recommending
    that the Commission deny the Siting Applications and all ancillary matters based on
    12
    Transource having failed to meet its burden of proving need for the IEC Project
    under the Code and the Regulations. The ALJ additionally recommended that a Rule
    to Show Cause be issued on why Transource’s provisional CPC should not be
    rescinded.
    D. Appeal to the Commission
    Petitioners filed eight Exceptions to the Recommended Decision, to which
    Intervenors filed Reply Exceptions. Relevant to the issues before us, Petitioners
    argued, in Exception 1, that the ALJ erred in concluding that Transource did not
    carry its burden of persuasion to establish the need for the Siting Applications
    pursuant to Section 1501 of the Code and Section 57.76(a) of the Regulations. This
    Exception asserted three general challenges to the ALJ’s decision:            (1) the
    Commission lacked authority to make an independent determination of need
    pursuant to the Code and the Regulations separate from PJM’s determination of need
    based on PJM’s authority as a federal regional transmission planning authority; (2)
    the ALJ improperly weighed the evidence; and (3) the ALJ’s analysis
    misapprehended the state and federal roles in the nature of and need for regional
    transmission planning. (Reproduced Record (R.R.) Volume (Vol.) 5 at 4935a-59a.)
    The Commission rejected each of these challenges and adopted and incorporated the
    ALJ’s findings of fact and conclusions of law, unless expressly rejected or modified.
    On the first challenge, the Commission rejected the notions that federal
    jurisdiction controlled and that it was bound to accept PJM’s determinations on the
    question of need for state approval of the PJM-approved regional transmission
    project. It held that whether the Pennsylvania standards were satisfied fell under the
    Commission’s jurisdiction and discretion under the Code, the Regulations, and
    precedent. (Op. and Order at 54-55.) According to the Commission, the standard
    13
    used for determining need by PJM does not necessarily meet the requirements
    established and weighed under Section 1501 of the Code, the Regulations, and
    precedent. (Id. at 54.) The Commission concluded that the ALJ considered FERC
    Order No. 1000 and “PJM’s regional planning responsibilities, and weighed those
    considerations as part of, but not dispositive of, the weight of the evidence regarding
    ‘need’ under” Section 57.76(a) of the Regulations. (Id. at 55.) Citing the same
    language in FERC Order No. 1000 and South Carolina Public Service Authority, the
    Commission held that the PJM approval did “not guarantee approval for siting and
    construction of transmission lines within the borders of . . . Pennsylvania.” (Id. at
    56-58.)
    The Commission explained that the determination of whether need is
    established is broad and includes considering numerous factors, including the facts
    before it and the potential impact of the project, and a weighing of all the evidence
    presented. (Id. at 56.) Part of this determination, the Commission held, was its
    discretion to consider all the economic and environmental impacts of a PJM-
    approved project, even if PJM did not consider those impacts as part of its analysis.
    (Id. at 58.) This included the negative impacts on ratepayers, both in Pennsylvania
    and elsewhere in the PJM Region, that resulted from resolving congestion due to the
    IEC Project. (Id. at 59.) Because the ALJ considered the regional planning impacts,
    as well as the impacts on Pennsylvania customers, the Commission rejected
    Petitioners’ argument that the ALJ improperly took a Pennsylvania-only approach.
    (Id.) Noting the main purpose of the IEC Project was to resolve regional economic
    congestion that was predicted to substantially increase utility rates elsewhere, the
    Commission held its review of the project needed to examine the underlying data
    14
    and congestion trends to determine if the current data of those needs was more
    persuasive than the detrimental impact. (Id. at 60.)
    Applying these conclusions, the Commission agreed with the weight the ALJ
    gave to the evidence. The Commission agreed that Intervenors’ arguments that the
    data congestion relied upon by PJM to approve the IEC Project, which was tied to
    the APSRI, was not reliable enough to meet Pennsylvania’s standard for need where
    that data reflected substantial fluctuation and, ultimately, decline in congestion in
    that area. (Id.) The Commission further cited Transource’s shifting bases for the
    need of the IEC Project, from originally relieving congestion in the APSRI, then to
    the potential reliability violations, and finally the resolution of other congestion on
    “related constraints” in the AP South Area, which the Commission did not dismiss
    outright as “new reasons,” but found reflected the nature and the scope of the IEC
    Project. (Id. at 61.) Nonetheless, the Commission “agree[d] with the ALJ[] that the
    relative weight of the evidence of the later-asserted bas[e]s for need for the project
    diminishe[d] as it [became] more tangential to the unambiguous original driver of”
    the IEC Project, which was the “alleviation of economic congestion on the
    AP[SRI].” (Id. at 62.) Finally, the Commission explained it was not persuaded by
    Petitioners’ challenges to the ALJ’s acceptance of Intervenors’ evidence criticizing
    Transource’s evidence and PJM’s analysis as credible and persuasive. (Id.)
    For these reasons, the Commission concluded:
    Therefore, based upon the broad powers conferred upon [it], we find
    that the ALJ properly construed the state versus federal roles regarding
    transmission planning in the analysis and application of the relevant
    statutory authority, applicable regulations and case law to the present
    case. Accordingly, we shall reject [Petitioners’] arguments to the
    contrary.
    15
    Based upon our review of the record in this proceeding, the relative
    weight of the evidence presented, and the arguments of the [p]arties,
    we conclude that in the present circumstances Transource fail[ed] to
    carry the burden of persuasion by a preponderance of the evidence to
    establish need for the proposed [S]iting Applications, pursuant to our
    authority under Section 1501 of the Code and [Section 57.76(a)(1) of
    the] . . . Regulations, 52 Pa. Code [§] 57.76(a)(1). Because we have
    concluded that the evidence is insufficient to establish the required
    element of “need” under [Section 57.76(a)(1) of the Regulations,] the
    arguments related to the other required elements under [Section
    57.76(a)(2)-(4)] are rendered moot and shall not be addressed.
    (Op. and Order at 63-64.)
    In addition, the Commission denied Petitioners’ Exception No. 5, which
    challenged the ALJ’s recommendation relating to the rescission of Transource’s
    provisional CPC. The Commission concluded that the grant of the provisional CPC
    was related specifically to the IEC Project and specifically deferred the statutory
    determination of need to a future proceeding. (Id. at 70.) Having found that
    Transource had not established need, a statutory requirement for retaining the
    provisional CPC, and the denial of the Siting Applications, the Commission held
    that “the provisional need for which Transource’s CPC was issued will cease to
    exist.”   (Id. at 71.)   Acting within its statutory authority and discretion, the
    Commission concluded that “the failure to establish necessity of the service for
    which the provisional CPC was issued . . . constitutes ‘cause’ to rescind the
    provisional CPC.” (Id.) The Commission further denied Petitioners’ Exception that
    asserted that the ALJ issued “faulty findings,” reasoning that the Exception was
    insufficiently specific, the “[f]actual [f]indings and [c]onclusions of [l]aw were
    based upon a careful review of the extensive and complex evidence presented in this
    proceeding,” and the Exception was simply a general disagreement with those
    16
    findings and conclusions.           (Id. at 73-74.) The Commission denied all of the
    remaining Exceptions except one as moot.11 (Id. at 64-66, 72.)
    Petitioners now petition for review of the Commission’s Opinion and Order.12
    11
    The Commission granted Petitioners’ Exception No. 4, concluding that the challenged
    finding of fact appeared to improperly treat lay witness testimony as expert witness testimony and
    striking that finding of fact. (Op. and Order at 65-66.)
    12
    In addition to filing a Petition for Review in this Court, Transource filed a suit against
    the Commission in the United States District Court for the Middle District of Pennsylvania
    (District Court), Transource Pennsylvania, LLC v. Dutrieuille, Docket No. 21-cv-1101, asserting
    that the Commission violated the Supremacy and Dormant Commerce Clauses of the United States
    Constitution. Petitioners included, in their Petition for Review, a reservation of the right to pursue
    those federal claims in federal court pursuant to England v. Louisiana State Board of Medical
    Examiners, 
    375 U.S. 411
     (1964) (England Reservation). This reservation was reiterated in
    Petitioners’ main brief and reply brief, and Petitioners have not provided any direct argument
    regarding the federal constitutional claims. Rather, they assert that the issue before this Court is
    whether the Commission “erred in applying state law when denying the [IEC] Project,” which is
    distinct from its federal claims that the Commission lacked the legal authority to reject PJM’s
    determinations under federal law. (Petitioners’ Reply Brief (Br.) at 29.) The Commission and
    Franklin County argue that Petitioners have impliedly placed the federal issues before this Court
    in this appeal by arguing that the Commission had to accept PJM’s determinations, and, as such,
    we should address them.
    Under the England doctrine, a litigant is required to advise state courts of its federal claims
    “so that the state statute may be construed ‘in light of’ those claims,” England, 
    375 U.S. at
    419-
    21, and involves “a federal court abstain[ing] from deciding a federal constitutional issue to enable
    the state courts to address an antecedent state-law issue,” San Remo Hotel, L.P. v. City & County
    of San Francisco, 
    545 U.S. 323
    , 339 (2005). On August 26, 2021, the District Court denied a
    challenge to its subject matter jurisdiction based on an allegation that Transource lacked standing
    and, over Transource’s objection, abstained from considering the remainder of the motion to
    dismiss. Transource Pa., LLC, (M.D. Pa. Aug. 26, 2021), 
    2021 WL 3784284
    , at *3-4, 10-12. In
    doing so, the District Court noted, in part: resolution of the federal claims would not resolve the
    state[]law claims at issue in the Commonwealth Court; while Transource had asserted an England
    Reservation and maintained the federal claims would not be before the Commonwealth Court, it
    also represented that it may “protectively brief” the federal claims in that matter; and the issues in
    both matters, while distinctly worded, were substantially similar. Based on Transource’s
    representation that it may protectively brief the federal claims in this Court, the District Court
    reasoned that abstention was appropriate as there was “a distinct possibility that both courts may
    essentially be asked to resolve the same issues,” and, therefore, “the same issues have at least been
    presented before both courts.” 
    Id. at *10-11
     (emphasis in original).
    (Footnote continued on next page…)
    17
    II.    DISCUSSION
    A. Relevant Legal Principles
    Our review of the Commission’s Opinion and Order is guided by the
    following legal principles. “Appellate review of a [Commission] order is limited to
    determining whether a constitutional violation, an error of law, or a violation of
    [Commission] procedure has occurred and whether necessary findings of fact are
    supported by substantial evidence.” Popowsky v. Pa. Pub. Util. Comm’n, 
    910 A.2d 38
    , 48 (Pa. 2006) (Popowsky II). Where an agency action involves the exercise of
    discretion, we will not find an abuse of that discretion in the absence of bad faith,
    fraud, capricious actions, or an abuse of power. Slawek v. State Bd. of Med. Educ.
    & Licensure, 
    586 A.2d 362
    , 365 (Pa. 1991). Pursuant to Section 332(a) of the Code,
    66 Pa.C.S. § 332(a), the proponent of the order in a proceeding before the
    Commission bears the burden of proof and must prove its case by a preponderance
    of the evidence, which is evidence more convincing than that offered by the other
    parties. Se-Ling Hosiery, Inc. v. Marguilies, 
    70 A.2d 854
    , 855-56 (Pa. 1950);
    Samuel J. Lansberry, Inc. v. Pa. Pub. Util. Comm’n, 
    578 A.2d 600
    , 602 (Pa. Cmwlth.
    1990). The burden of proof contains two distinct burdens, the burden of production
    and the burden of persuasion. Riedel v. Cnty. of Allegheny, 
    633 A.2d 1325
    , 1328
    n.11 (Pa. Cmwlth. 1993). “[T]he burden of persuasion never leaves the party on
    Reviewing the issues presented and argued by Petitioners, which do not include any
    “protective[] briefing” of the federal claims, 
    id.,
     the issues before this Court relate to whether the
    Commission’s decision is consistent with Pennsylvania law and is supported by substantial
    evidence, also a matter of Pennsylvania law. We read Petitioners’ arguments regarding the
    Commission’s consideration of the PJM determinations as relating to substantial evidence, rather
    than relating to federal preemption. Accordingly, we will not address the federal claims that
    Transource has reserved for consideration in the District Court and focus instead on whether the
    Commission’s decision is correct under Pennsylvania law.
    18
    whom it is originally cast, but the burden of production may shift during the course
    of the proceedings.” 
    Id.
    Here, Petitioners argue that Transource met its burden of proof on the IEC
    Project and that the Commission erred in interpreting Section 1501 of the Code and
    Section 57.76(a) of the Regulations to conclude otherwise. They further argue that
    the Commission’s findings necessary to support its conclusion that the IEC Project
    does not meet the standard for approval under Pennsylvania law are not supported
    by substantial evidence. Finally, Petitioners argue that the Commission erred in
    rescinding the provisional CPC and not addressing the merits of the remaining
    Exceptions.13 We address these arguments in turn.
    B. Section 1501 of the Code and Section 57.76(a) of the Regulations
    1. Parties’ Arguments
    Petitioners argue that the Commission erred as a matter of law in interpreting
    Section 1501 of the Code as requiring the IEC Project to be both necessary and
    proper when that provision requires a proposed facility to be necessary or proper for
    the service of the public. The Commission further erred in interpreting Section
    57.76(a) of the Regulations as requiring Transource to prove that the IEC Project
    was “reasonable and necessary and in the public interest,” which is inconsistent with
    Section 1501’s recognition that a service may be approved if it is proper.
    (Petitioners’ Brief (Br.) at 18 (quoting Op. and Order at 56).) Petitioners argue that
    “proper” means something that is “appropriate to the purpose or circumstance; fit;
    suitable.” (Id. at 19-20 (citing PPL Elec. Utils. Corp. v. Pub. Util. Comm’n (Pa.
    Cmwlth., No. 624 C.D. 2019, filed Oct. 27, 2020), slip op. at 24) (quotation
    13
    Although Petitioners set forth eight separate arguments in their brief, those arguments
    have been consolidated into these three main arguments.
    19
    omitted).)14 Petitioners assert that the IEC Project is a proper means of resolving
    market congestion and the potential NERC violations, the latter of which relate to
    the provision of safe and reasonable service. According to Petitioners, had the
    Commission applied the correct standard, that is, considered whether the IEC Project
    was “proper for the accommodation, convenience, and safety of . . . the public,” the
    Siting Applications would have been granted. (Id. at 19-20.)
    Petitioners further argue that the Commission erred in focusing solely on the
    potential impact to Pennsylvania rates, rather than considering the mitigation of
    regional market congestion, in concluding that there was no need for the IEC Project.
    That prices may increase for Pennsylvania ratepayers due to the resolution of
    congestion and market inefficiencies is not, per Mr. Cawley, a “cost” that should be
    considered in ascertaining whether a project is proper or needed under, respectively,
    Section 1501 of the Code and Section 57.76(a) of the Regulations. (Petitioners’ Br.
    at 41-42.) Citing Section 2805(a) of the Code, Petitioners assert the Commission is
    required to consider regional concerns and to work with PJM to support and enhance
    regional transmission planning, from which Pennsylvania benefits. In focusing on
    local rates in a matter involving a project related to resolving wholesale impacts to
    the PJM Region, Petitioners maintain that the Commission did not comply with its
    obligation to support regional transmission planning as required by Section 2805(a).
    The Commission responds that it properly interpreted and applied Section
    1501 of the Code and Section 57.76(a) of the Regulations in reviewing whether the
    IEC Project met the standards for approval under Pennsylvania law. It considered
    14
    PPL Electric Utilities is an unreported opinion which, while not binding, may be cited
    for its persuasiveness pursuant to Pennsylvania Rule of Appellate Procedure 126(b), Pa.R.A.P.
    126(b), and Section 414(a) of this Court’s Internal Operating Procedures, 
    210 Pa. Code § 69.414
    (a).
    20
    whether the IEC Project was necessary or proper and if it was needed and, based on
    its evidentiary weight determinations, found that the IEC Project was not. To the
    extent that Petitioners maintain all that was required to be proven was that the IEC
    Project was proper under Section 1501 of the Code, Transource did not make this
    argument before it or the ALJ and, therefore, any such claim has been waived. Even
    if not waived, the Commission contends that the propriety of a project is not so broad
    as Petitioners assert, as a project should be “suitable” and “fitting,” and substantial
    evidence supports that the IEC Project is not suitable or fitting for its purported
    purpose. (Commission’s Br. at 42 (quoting Merriam-Webster Thesaurus, available
    at https://www.merriam-webster.com/thesaurus/proper (last visited May 4, 2022)).)
    The Commission also argues that necessity for proposed transmission lines
    may be found when such lines provide lower prices or improved reliability, Hess v.
    Pennsylvania Public Utility Commission, 
    107 A.3d 246
    , 260 (Pa. Cmwlth. 2014),
    and, here, the Commission was not persuaded by the evidence offered to establish
    that the IEC Project was necessary or proper. That PJM determined that there was
    a need for the IEC Project under its standards, while relevant, is not determinative
    of the approval of siting applications under the Code and the Regulations, which is
    an independent decision that belongs to the Commission. The Commission disputes
    that it relied only on the impacts to Pennsylvania rates in determining the lack of
    need for the IEC Project, pointing to findings relating to the overall regional costs
    and benefits, which likewise support its decision that the IEC Project was not
    needed, necessary, or proper.
    OCA argues the Commission applied the correct legal standard in determining
    whether Transource met its burden of proof under Section 1501 of the Code and
    Section 57.76(a) of the Regulations.      OCA maintains that despite Petitioners’
    21
    argument that “proper” is distinct from “need,” Petitioners still connect the two by
    arguing that if a project is proper, it must be needed. (OCA’s Br. at 11 (citing
    Petitioners’ Br. at 17).) Accepting Petitioners’ broad interpretation of “proper”
    would allow any utility plan that is functional to be approved irrespective of the
    consequences to the environment, consumers, or the market. Even applying a
    proper-only standard, OCA asserts, Petitioners did not meet that standard because
    the identified need for the IEC Project, resolving congestion in the APSRI, is no
    longer present.    As for Petitioners’ argument that the standard under Section
    57.76(a), as interpreted by the Commission, conflicts with Section 1501, they made
    no such arguments to the Commission in the Exceptions and, even if raised, the two
    provisions have distinct purposes – one standard applies distinctly to HV
    transmission lines and the other to public utilities in general. OCA contends that the
    Commission did not ignore the importance of regional transmission needs, it
    considered those needs, as required by Section 2805(a) of the Code, but correctly
    concluded the evidence relating to the various reasons proffered by Transource did
    not establish the need for the IEC Project under Pennsylvania law, which is a
    determination independent of PJM’s determination of need. The Commission’s
    review was not limited to the impacts in Pennsylvania, OCA argues; rather, it
    examined the impacts throughout the PJM Region, much of which would see
    increases in their energy prices as a result of the IEC Project.
    Franklin County argues Petitioners waived the issue that Transource only had
    to establish that the IEC Project was proper because it was not raised before the ALJ
    or the Commission. Since the grant of the provisional CPC, the issue to be addressed
    was whether there was a need for the IEC Project under Pennsylvania law, which
    Transource attempted to prove during the ALJ proceedings without arguing that it
    22
    only had to prove that the IEC Project was proper. Even if not waived, Franklin
    County asserts, the Commission applied the correct standards, reviewing the IEC
    Project under the specific standards of Section 57.76(a)(1) of the Regulations, which
    must take into consideration the environmental and safety concerns of HV
    transmission lines pursuant to article I, section 27 of the Pennsylvania Constitution
    (Environmental Rights Amendment),15 and the general standards of Section 1501 of
    the Code. Franklin County argues the Commission did not err in considering PJM’s
    determination of need but not finding such need sufficient for purposes of
    Pennsylvania law. Contrary to Petitioners’ argument, the Commission did not rely
    on Pennsylvania impacts, but examined the needs and congestion of the PJM Region,
    which is consistent with the Commission’s obligations under Section 2805(a) of the
    Code. Based on the evidence presented and credited, Franklin County maintains the
    Commission properly concluded that the IEC Project was not necessary “to ensure
    the continued provision of adequate, safe and reliable service to the citizens and
    businesses in” Pennsylvania, or in the entire PJM Region. (Franklin County’s Br. at
    24 (quoting 66 Pa.C.S. § 2805(a)) (emphasis omitted) (internal quotations omitted).)
    STFC argues the Commission committed no error of law or abuse of
    discretion in interpreting Section 1501 of the Code and applied the “necessary or
    proper” standard in exercising its independent authority to analyze the Siting
    15
    Article I, section 27 of the Pennsylvania Constitution states:
    The people have a right to clean air, pure water and to the preservation of the
    natural, scenic, historic and esthetic values of the environment. Pennsylvania’s
    public natural resources are the common property of all the people, including
    generations yet to come. As trustee of these resources, the Commonwealth shall
    conserve and maintain them for the benefit of all the people.
    PA. CONST. art. I, § 27.
    23
    Applications. As to the argument that Transource only had to prove that the IEC
    Project was proper, STFC asserts that this standard, in the context of transmission
    line siting, is not an alternative, lesser standard that would allow construction of any
    transmission line proposed – such line still must be appropriate to the purpose or
    circumstance, which the IEC Project is not. According to STFC, Section 57.76(a)
    of the Regulations, which requires denial of siting applications unless need for the
    proposed HV transmission lines is shown, is not unreasonable or beyond the Code’s
    grant of authority, particularly where the Commission has recognized that such lines
    “cannot be constructed without some adverse effect upon the environment,” and
    implicates the Commission’s obligations under the Environmental Rights
    Amendment. (STFC’s Br. at 22 (citing In Re Proposed Elec. Reg., 49 Pa. P.U.C.
    709, 712, 1976 Pa. PUC LEXIS 114 (1976)).) That a regulation is burdensome does
    not make its application or interpretation an abuse of discretion, but rather to be
    invalid, “what has been ordered must appear to be so entirely at odds with
    fundamental principles . . . as to be the expression of a whim rather than an exercise
    of judgment.” (Id. at 18 (citing Pa. Hum. Rels. Comm’n v. Uniontown Area Sch.
    Dist., 
    313 A.2d 156
    , 169 (Pa. 1973)).)
    In their reply brief, Petitioners assert that necessary and proper are distinct
    standards, as recognized by this Court in PPL Electric Utilities, and that this Court
    has recognized that “necessity” is present “whenever the project result[s] in a benefit
    to the public, such as an improvement to the reliability of service or lower prices,”
    which Transource established would happen through the construction of the IEC
    Project. (Petitioners’ Reply Br. at 8 (quoting Hess, 
    107 A.3d at 260
    ).) According
    to Petitioners, they did not waive the right to argue that the IEC Project is proper and
    that applying Section 57.76(a) as requiring need beyond the necessary or proper
    24
    standard conflicts with Section 1501 of the Code because such arguments are
    encompassed in their original argument that the IEC Project should be approved
    because it meets the Section 1501 standards. Petitioners point to their brief to the
    Commission that the IEC Project “is clearly needed and is necessary or proper for
    the accommodation, convenience and safety of its patrons, employees and the
    public,” as encompassing its current arguments before the Court. (Petitioners’ Reply
    Br. at 10 (quoting R.R. Vol. 5 at 4045a).) Further, they assert they could not know
    that the Commission would misinterpret Section 57.76(a) before it issued the
    Opinion and Order and, therefore, its current arguments could not have been raised
    earlier.
    2. Analysis
    Section 1501 of the Code addresses, generally, the character of services and
    facilities of a public utility and provides, in relevant part:
    Every public utility shall furnish and maintain adequate, efficient,
    safe, and reasonable service and facilities, and shall make all such
    repairs, changes, alterations, substitutions, extensions, and
    improvements in or to such service and facilities as shall be necessary
    or proper for the accommodation, convenience, and safety of its
    patrons, employees, and the public. . . . Such service and facilities
    shall be in conformity with the regulations and orders of the
    [C]ommission.
    66 Pa.C.S. § 1501 (emphasis added). Our Supreme Court has recognized that the
    word “or” in “necessary or proper” “must be given its ordinarily disjunctive meaning
    unless such a construction would lead to an absurd result.” Elite Indus., Inc. v. Pa.
    Pub. Util. Comm’n, 
    832 A.2d 428
    , 431 (Pa. 2003). While Elite Industries involved
    Section 1103(a) of the Code, which relates to the grant of a CPC, both that section
    25
    and Section 1501 use the phrase “necessary or proper.” Compare 66 Pa.C.S.
    § 1103(a), with 66 Pa.C.S. § 1501.
    Section 57.76(a)(1) of the Regulations relates specifically to the siting and
    construction of HV lines and states:
    (b) The Commission will issue its order, with its opinion, if any, either
    granting or denying the application, in whole or in part, as filed or
    upon the terms, conditions or modifications, of the location,
    construction, operation or maintenance of the line as the
    Commission may deem appropriate. The Commission will not
    grant the application, either as proposed or as modified, unless it
    finds and determines as to the proposed HV line:
    (1) That there is a need for it.
    
    52 Pa. Code § 57.76
    (a)(1). Pursuant to Section 57.75(e)(1) of the Regulations, in
    reviewing siting applications, the Commission must accept evidence of, among other
    things, the “present and future necessity of the proposed HV line in furnishing
    service to the public.” 
    52 Pa. Code § 57.75
    (e)(1) (emphasis added). When the
    Commission promulgated these regulations, it recognized that HV transmission lines
    could not “be constructed without some adverse effect upon the environment,” and,
    therefore, its review must incorporate the requirements of the Environmental Rights
    Amendment. In Re Proposed Elec. Reg., 49 Pa. P.U.C. at 712.
    Finally, Section 2805(a) of the Code provides that
    [t]he [C]ommission shall take all necessary and appropriate steps to
    encourage interstate power pools to enhance competition and to
    complement industry restructuring on a regional basis.             The
    Commonwealth, the [C]ommission and Pennsylvania electric utilities
    shall work with the Federal Government, other states in the region and
    interstate power pools to accomplish the goals of restructuring and to
    establish independent system operators or their functional equivalents
    to operate the transmission system and interstate power pools. The
    [C]ommission, Pennsylvania electric utilities and all electricity
    26
    suppliers shall work with the Federal Government, other states in the
    region, the . . . [NERC] and its regional coordinating councils or their
    successors, interstate power pools, and with the independent system
    operator or its functional equivalent to ensure the continued provision
    of adequate, safe and reliable electric service to the citizens and
    businesses of this Commonwealth.
    66 Pa.C.S. § 2805(a).
    This matter involves the interpretation of these provisions, and the
    Commission’s “interpretations of the Code, the statute for which it has enforcement
    responsibility, and its own regulations are entitled to great deference and should not
    be reversed unless clearly erroneous.” Lehigh Valley Transp. Servs. v. Pa. Pub. Util.
    Comm’n, 
    56 A.3d 49
    , 56 (Pa. Cmwlth. 2012) (quoting Energy Conservation
    Council, 
    995 A.2d at 478
    ). “The statutory and regulatory scheme regarding the
    approval of the siting and construction of transmission lines is technically complex,
    and a reviewing court should put aside its discretion in favor of the Commission’s
    expertise.” Hess, 
    107 A.3d at 259
    . Thus, a Commission determination that facilities
    are “necessary or proper for the service, accommodation, convenience or safety of
    the public” is entitled to “strong deference” and “given controlling weight unless it
    is clearly erroneous.” Riverwalk Casino, L.P. v. Pa. Gaming Control Bd., 
    926 A.2d 926
    , 940 (Pa. 2007).
    Reviewing the Commission’s Opinion and Order with these principles in
    mind, we discern no clear error in the determination that Transource did not meet its
    burden of proof under Section 1501 of the Code and Section 57.76(a) of the
    Regulations on the Siting Applications. First, we agree with the Commission that
    the determination of whether a utility meets the requisite burden of proof under
    Pennsylvania law is an independent one. The Commission’s role is to regulate
    utilities for the purposes of Pennsylvania law and to determine if the proposed
    27
    services and facilities comport with Pennsylvania law. That is what it did here; it
    examined the Siting Applications, the evidence offered in support of and opposition
    to those applications, and made a determination as to whether Transource met its
    burden of proof on those Siting Applications under Pennsylvania law. The need for
    the Commission’s independent review is particularly true where Pennsylvania law
    sets forth different requirements and considerations for approving HV transmission
    lines than may be addressed in PJM’s proceedings.
    Next, examining the Opinion and Order in its entirety, the Commission did
    not deviate from the “necessary or proper” standard set forth in Section 1501 of the
    Code or interpret Section 57.76(a) of the Regulations in a way that is inconsistent
    with that standard. While there may be places where the Opinion used “necessary
    and proper,” rather than “necessary or proper,” the Commission recognized the
    statutory standard and applied it, as well as the regulatory standard of “need” as set
    forth in Section 57.76(a), to the evidence presented. After doing so, the Commission
    concluded that Transource had not met its burden of proving those standards based
    on the evidence it presented, which was found to be less persuasive than the evidence
    in opposition to the IEC Project.
    Necessity and need are corollaries, and this Court has explained that, for
    purposes of HV transmission lines, necessity can be established by showing an
    improvement in the reliability of services or lower prices. Hess, 
    107 A.3d at 260
    .
    As for any lower prices that could result from the IEC Project, the Commission
    considered all the costs and benefits of the IEC Project, not just those considered by
    PJM, and, because there were considerable increases in prices to ratepayers in both
    Pennsylvania and elsewhere in the PJM Region, found that this did not support the
    grant of the Siting Applications. As for the potential NERC reliability violations,
    28
    the Commission, as factfinder, found that the relative weight to this later-asserted
    basis for the IEC Project had diminished because, among other reasons, “it bec[a]me
    more tangential to the unambiguous original driver of the” IEC Project. (Op. and
    Order at 62.) As for the resolution of congestion in the APSRI, it does not appear
    that we have ever held that congestion, which is an economic consideration, is
    sufficient on its own to support need or necessity under Pennsylvania law. In Energy
    Conservation Council, we observed that while there was a challenge to the
    Commission’s reliance on congestion to find need, we did not address that challenge,
    stating that “even if the [Commission] erred in considering congestion issues,” the
    finding of public need in that case was supported on reliability grounds. 
    995 A.2d at 487
    . Similar to that case, we need not decide this issue here because the
    congestion in the APSRI decreased significantly over the years and, therefore, was
    rejected as being a valid basis for the IEC Project. To the extent that Transource
    later asserted that the IEC Project would resolve congestion in the AP South Area
    and related constraints, like the potential NERC reliability violations, that reason
    was not given much weight for a variety of reasons. Thus, based on the evidentiary
    findings of the Commission, we discern no clear error in the Commission’s
    determination that Petitioners did not satisfy the standards under Section 1501 of the
    Code and Section 57.76(a) of the Regulations.
    Alternatively, Petitioners argue that the Siting Applications should have been
    granted because the IEC Project was proper, that is, “being adapted or appropriate
    to the purpose or circumstances; fit; suitable,” for its purpose. PPL Elec. Utils., slip
    op. at 24 (quotation and citation omitted). The Commission argues that, if the issue
    is not waived, it addressed the propriety of the IEC Project, finding that the costs
    outweighed the limited benefits, and, moreover, that the proper standard is not as
    29
    broad as Petitioners claim, which requires that a project be “suitable,” or
    “acceptable.”    (Commission’s Br. at 42.)        We agree that Petitioners’ broad
    interpretation of “proper” goes beyond what is intended by Section 1501 of the Code.
    The application of the “proper” standard is dependent on the circumstances of
    each case. For example, the Supreme Court determined in Elite Industries that
    “necessary or proper” must be given its disjunctive meaning and that using a less
    stringent standard to obtain a CPC was appropriate in that case. This reasoning was
    based, at least in part, on the facts that the applicant sought to offer a private
    limousine service, the applicant “would be hard pressed to show a ‘public need’ for
    convenience,” and approval of the CPC would allow for growth and competition
    within the industry. 832 A.2d at 432. The Supreme Court explained that, in
    requiring a showing of public need, this Court had infringed upon the Commission’s
    broad discretion within which the General Assembly left the determinations
    regarding the propriety of granting a CPC. Id. Similarly, in PPL Electric Utilities,
    slip op. at 22-24, which involved a utility’s internal corporate restructuring, this
    Court recognized that “it would be very difficult, if not impossible, for [a u]tility to
    establish an affirmative and substantial benefit to the public,” and that this was a
    case in which “the Commission c[ould] conduct a disjunctive analysis,” and then
    remanded the matter to the Commission to determine if the restructuring was
    proper. (Emphasis added.) Thus, in these cases, the disjunctive “proper” standard
    was used primarily because it was unlikely that the public need, i.e., necessity,
    standard could ever be met based on the type of service or action that was being
    proposed and was to be determined to apply based on the circumstances involved.
    From these cases, we discern that while the Commission is to determine whether a
    service or facility is “necessary or proper,” 66 Pa.C.S. § 1501 (emphasis added), that
    30
    determination should consider the circumstances, such as the type of service or
    action being proposed, and that this determination falls within the Commission’s
    sound discretion.
    Unlike the situations in Elite Industries and PPL Electric Utilities, it cannot
    reasonably be said that it is unlikely or nearly impossible to establish a public need
    for an HV transmission line – the Commission and this Court have addressed
    numerous such applications and findings of public need have been made which
    support approving those lines. See Hess, 
    107 A.3d at 250, 257-58, 260-61
    ; Energy
    Conservation Council, 
    995 A.2d at 486-87
    ; In Re: Application of Trans-Allegheny
    Interstate Line Co. (TrAILCo), 103 Pa. P.U.C. 554, 
    2008 WL 5786507
     (Pa. PUC
    Dec. 12, 2008), slip op. 10-12, 16-18; Application of PP&L Elec. Utils. Corp., 
    2010 WL 637064
     (Pa. PUC Feb. 12, 2010) (Susquehanna-Roseland), slip op. at 9, 14, 30.
    Thus, the broad application of the “proper” standard asserted by Petitioners is not as
    warranted here as it had been in Elite Industries and PPL Electric Utilities. Further,
    we must remain cognizant that the standards for siting HV transmission lines must
    be read in the context of the Environmental Rights Amendment, with which the
    Commission’s Regulations were promulgated to be consistent.                 Here, the
    Commission reviewed the evidence presented and concluded that the proffered
    reasons for the IEC Project, including the later-asserted alleged resolution of
    congestion outside the APSRI and the possible NERC reliability violations, when
    weighed against the detriments of the IEC Project, did not meet the standard under
    Section 1501, which necessarily includes whether such facility was “proper.” As
    this determination is within the Commission’s expertise and discretion, and because
    that determination is not clearly erroneous, we will not infringe on that discretion.
    31
    Finally, the Commission did not violate its obligations under Section 2805(a)
    of the Code to work with regional transmission planning groups and the Federal
    Government when it denied the Siting Applications and rescinded Transource’s
    provisional CPC under Pennsylvania law. The Commission recognized the asserted
    regional planning goals of the IEC Project but found, after weighing the evidence,
    that the evidence offered to support that the IEC Project satisfied the Pennsylvania
    standards for approval was not persuasive for a variety of reasons. Further, and
    contrary to Petitioners’ arguments, the Commission did not engage in a
    Pennsylvania-only review of the costs and benefits of the IEC Project. While
    evidence of the detrimental impact to Pennsylvania ratepayers was cited and
    considered as part of the conclusion that Transource did not meet its burden of proof,
    the Commission also examined the detrimental impacts to ratepayers in other parts
    of the PJM Region in reaching that conclusion. Accordingly, this is not a reason to
    find that the Commission’s determination was clearly erroneous.
    C. Evidentiary Claims
    1. Parties’ Arguments
    Petitioners argue the Commission made several errors in reviewing and
    rejecting Transource’s evidence in this matter.        First, Petitioners argue the
    Commission erred in rejecting PJM’s determination of the need for the IEC Project,
    which was presented as evidence to establish need under the Code and the
    Regulations, despite PJM’s expertise in the area of transmission planning, including
    the management and mitigation of chronic congestion within the PJM Region.
    Petitioners maintain that the Commission should have relied on that evidence
    because PJM’s process was approved by FERC, was supported by numerous studies,
    32
    and had been accepted by the Commission and this Court in the past, including in
    Energy Conservation Council, 
    995 A.2d 465
    , to support granting siting applications.
    Second, Petitioners assert the Commission’s finding that the IEC Project is
    not necessary to resolve congestion or the potential NERC violations is not
    supported by substantial evidence because the evidence relied upon, that of the
    opposing parties, constituted “a vast oversimplification of the complex electrical
    engineering analysis required to evaluate congestion on the interstate transmission
    system.” (Petitioners’ Br. at 29.) Petitioners contend that only Transource presented
    evidence of actual studies or modeling showing that the IEC Project was needed to
    resolve congestion in the AP South Area and to resolve the NERC reliability issues,
    which the Commission abused its discretion in disregarding.             According to
    Petitioners, the opposing parties’ witnesses had less experience than Transource’s
    experts and their evidence regarding the IEC Project no longer being needed due to
    reduced congestion on the APSRI was speculative, particularly where the IEC
    Project was not limited to resolving congestion on that particular interface.
    Petitioners further assert that no opposing party offered substantive or empirical data
    regarding the pending NERC reliability violations. Petitioners maintain that the
    Commission improperly relied on speculation that other upgrades may resolve those
    violations and the lack of additional testing to reject PJM’s findings in this regard
    despite there being no reason for PJM to run additional testing because the IEC
    Project, a baseline upgrade, would resolve the potential reliability violations in a
    timely fashion.
    The Commission responds that its findings that the IEC Project did not meet
    the standard for approval under Pennsylvania law are supported by substantial
    evidence. According to the Commission, its rejection of PJM’s need determination
    33
    was based on credible evidence reflecting that PJM’s cost-benefit analysis was
    flawed and did not consider costs to other parts of the PJM Region, that the
    congestion in the APSRI had decreased since the initial study that supported PJM’s
    need determination, and that there was insufficient proof of the potential NERC
    reliability violations. It maintains that there was substantial evidence to support each
    of these determinations, including that the net benefit would only be $32.5 million
    over a 15-year period, that the data relied upon to continue supporting the need for
    the IEC Project became outdated, and that the congestion cited as the purpose for
    the IEP Project was no longer an issue. As for the alleged potential NERC reliability
    violations, the Commission asserts the reasons offered for giving less weight to that
    evidence were supported by the record and reasonable. The Commission contends
    that Petitioners’ arguments to the contrary are simply a request for this Court to
    reweigh the evidence, which is beyond this Court’s appellate role.
    OCA likewise argues that there was no error or abuse of discretion by the
    Commission in not relying on PJM’s determination and that PJM’s process is
    inherently unfair in ascertaining whether the benefits of a market efficiency project
    outweigh its costs. OCA maintains that the Commission considered and weighed all
    of the evidence in its role as factfinder, that Petitioners’ arguments are impermissible
    attacks on the evidentiary determinations, and that the fact that Transource presented
    evidence that supports other findings of fact is of no moment because the findings
    made are supported by substantial evidence.          According to OCA, while the
    Commission has relied on PJM determinations in the past, it did so merely as
    evidence to be considered and not as the sole reason for granting relief.
    Franklin County argues that the Commission’s findings regarding the lack of
    need for the IEC Project are supported by substantial evidence, including by
    34
    Transource’s own data, and that the evidence related to Transource’s later-asserted
    reasons for the IEC Project was properly rejected as being insufficient after being
    weighed by the Commission. There was no impropriety, according to Franklin
    County, for the Commission to make its own determination as to the reliability of
    PJM’s projections based on the evidence presented or to accept evidence opposing
    the IEC Project as more persuasive. To the extent that the Commission has cited
    PJM data and witnesses in the past, it was as part of the Commission’s own analysis
    and not merely accepting PJM’s determination as establishing need.
    STFC argues that the findings of fact are supported by substantial evidence,
    Petitioners seek to have this Court reweigh the evidence by claiming only
    Transource presented substantial evidence, and the Commission is not bound by
    PJM’s determination of need for the IEC Project for purposes of Pennsylvania law.
    STFC maintains that the Commission has not historically relied solely on PJM’s
    determinations to establish need under Pennsylvania law but considered such
    determinations as evidence. STFC further argues that the Commission has not held
    that PJM-identified congestion and economic issues were sufficient, in themselves,
    to support a finding of need under Pennsylvania law.
    Petitioners respond, reemphasizing their arguments that the Commission’s
    findings as to the lack of need, congestion, and reliability violations are not
    supported by substantial evidence, pointing to Transource’s own evidence in
    support. Petitioners reassert that the Commission has accepted PJM determinations
    of need as being sufficient to meet the standard for granting siting applications under
    Pennsylvania law and it should have done so here. PJM’s determinations that the
    IEC Project is needed to relieve congestion and resolve the potential NERC
    reliability violations constitute substantial evidence to support that the project is both
    35
    necessary and proper and were improperly rejected by the Commission. Petitioners
    claim that they are not asking this Court to reweigh the evidence but to reverse the
    finding that the IEC Project did not meet the standard for approval under
    Pennsylvania law because it is not supported by substantial evidence, as the
    opposing parties’ evidence was fully rebutted by Transource’s evidence.
    (Petitioners’ Reply Br. at 26.)
    2. Analysis
    It is well settled that the Commission “is the ultimate factfinder[] and makes
    all decisions as to the weight and credibility of evidence.” Borough of Duncannon
    v. Pa. Pub. Util. Comm’n, 
    713 A.2d 737
    , 739 (Pa. Cmwlth. 1998).               For a
    Commission finding to be supported by substantial evidence, which is “the amount
    of relevant evidence which a reasonable person would accept as adequate to support
    a determination,” Popowsky v. Pennsylvania Public Utility Commission, 
    937 A.2d 1040
    , 1054 (Pa. 2007) (Popowsky III), there must be “more than a mere trace of
    evidence or suspicion of the existence of a fact sought to be established,” HIKO
    Energy, LLC v. Pennsylvania Public Utility Commission, 
    163 A.3d 1079
    , 1094 (Pa.
    Cmwlth. 2017) (quoting Lyft, Inc. v. Pennsylvania Public Utility Commission, 
    145 A.3d 1235
    , 1240 (Pa. Cmwlth. 2016)), aff’d, 
    209 A.3d 246
     (Pa. 2019). Additionally,
    the record evidence, as well as the inferences that can be logically drawn from that
    evidence, must be “viewed in a light most favorable to” “[t]he party who [sic]
    prevailed before the” Commission. United Transp. Union v. Pa. Pub. Util. Comm’n,
    
    68 A.3d 1026
    , 1032 (Pa. Cmwlth. 2013). It is irrelevant if “the record may contain
    evidence that supports a different result than that reached by the [Commission] . . .
    so long as the record contains substantial evidence supporting the [Commission’s]
    36
    decision.” Lyft, Inc., 145 A.3d at 1240. This Court should not “‘substitute its
    judgment for that of the [Commission] when substantial evidence supports the
    [Commission]’s decision on a matter within the [C]ommission’s expertise,’ nor
    should it indulge in the process of weighing evidence and resolving conflicting
    testimony.” Energy Conservation Council, 
    995 A.2d at
    478 (citing Popowsky v. Pa.
    Pub. Util. Comm’n, 
    706 A.2d 1197
    , 1201 (Pa. 1997) (Popowsky I)).
    Petitioners’ evidentiary challenges focus, essentially, on the Commission’s
    acceptance of the opposing parties’ evidence over that offered by Transource. Their
    arguments challenge the Commission’s decision to:              not accept PJM’s
    determinations as sufficient evidence under Pennsylvania law, despite having done
    so in other proceedings; reject evidence that the IEC Project would resolve, and was
    designed to resolve, congestion beyond the APSRI; and reject evidence that the IEC
    Project would resolve five potential NERC reliability violations. A review of the
    record under the applicable appellate standard reveals that the Commission’s
    findings are supported by substantial evidence and support the Commission’s
    conclusion that Transource did not meet its burden of proof, which includes both the
    burden of production and the burden of persuasion, on the Siting Applications.
    First, Petitioners’ assertion that the Commission erred in not accepting
    Transource’s evidence related to PJM’s determination of need and the testimony of
    PJM employees because the Commission has done so in the past is not persuasive.
    Petitioners cite various Commission decisions and this Court’s opinion in Energy
    Conservation Council for support because the PJM-based evidence presented in
    those cases was found sufficient to establish need under Pennsylvania law.
    However, a close reading of those Commission decisions and Energy Conservation
    Council reveals that PJM’s determinations of need and related testimony and reports
    37
    were simply evidence offered by the applicant, which were found credible and
    persuasive by the Commission based on those factual records. This is apparent in
    this Court’s decision in Energy Conservation Council, which references the PJM
    submissions as evidence that had been offered by the applicant, and accepted as
    persuasive by the Commission, to support a determination that the transmission lines
    at issue met the standards of Pennsylvania law. 
    995 A.2d at 470-73, 480-86
    . The
    Commission’s decisions cited by Petitioners, which include the decision reviewed
    in Energy Conservation Council, likewise refer to the PJM submissions as evidence,
    which the Commission considered and “was persuaded by.” TrAILCo, 
    2008 WL 5786507
    , slip op. 10-12, 16-18. See also Susquehanna-Roseland, 
    2010 WL 637064
    ,
    slip op. at 9, 14, 30 (explaining that the applicant “presented extensive testimony
    and exhibits in order to support its [a]pplication” and describing the evidence
    introduced regarding PJM’s process as supporting the application and meeting the
    applicant’s burden of proof on need); Joint Application for Approval of Merger of
    GPU, Inc. with FirstEnergy Corp., 2001 Pa. PUC LEXIS 604 (Pa. PUC May 24,
    2001), slip op. at 9-10, 22-23 (accepting PJM evidence as sufficient to support the
    need for a merger of two electric utilities, but with a concurring opinion questioning
    whether such evidence was affirmative evidence that supported the relief requested).
    Indeed, in the TrAILCo case, the Commission rejected the argument of one of the
    opposing parties that it was “required to accept PJM’s RTEP findings or that [it]
    must in some fashion defer to PJM on transmission siting issues,” but it did “find
    that PJM’s RTEP and the testimony surrounding the need for [proposed transmission
    line facilities] compelling.” 
    Id.,
     slip op. at 18 n.3 (emphasis omitted).    That the
    Commission found evidence persuasive in some proceedings does not require it to
    accept it as such in all. As PJM’s determinations, reports, and witnesses were offered
    38
    in the current proceedings as evidence for the Commission’s consideration, that
    evidence is subject to challenge by opposing parties and witnesses and to weighing
    by the Commission. Accordingly, this is not a basis to reverse the Commission’s
    factual findings.
    Second, Petitioners argue that the Commission’s findings of fact regarding
    PJM’s cost-benefit analysis are flawed and not supported by substantial evidence.
    This evidence was rejected because, inter alia, it did not consider the negative
    impacts of the IEC Project on other ratepayers or that the data used to support the
    ongoing need for the IEC Project was outdated, ultimately, and inaccurate, and it did
    not include other means of resolving the alleged congestion, such as future potential
    generation sources. As to the first reason, OCA’s evidence revealed that prior to
    2014, PJM considered the negative impacts in its benefit calculation but removed
    this from the cost-benefit analysis in order to “increase[] the number of projects that
    could qualify as a market efficiency project.” (OCA Cross Exhibit (Ex.) 4 at 4, 8,
    R.R. Vol. 7 at 6384a, 6388a.) It was not just OCA’s witness who criticized PJM’s
    cost-benefit analysis, but PJM’s own Independent Market Monitor who suggested
    that its market efficiency process, which includes the cost-benefit analysis, be
    reevaluated and that the actual costs and benefits of a project should be considered
    and not ignored in determining whether a market efficiency project is needed. (OCA
    Cross Ex. 12 at 7-8, R.R. Vol. 7 at 6421a-22a; Hearing Transcript (Hr’g Tr.) at 2619-
    22, R.R. Vol. 3 at 2894a-97a.) Because a finding of necessity may be found under
    Pennsylvania law if a project results in a decrease in prices, Hess, 
    107 A.3d at 260
    ,
    we do not view it an abuse of discretion for the Commission to consider evidence of
    increased consumer prices and weigh the competing cost impacts of the IEC Project
    to determine the necessity of that project. Further, the finding that the cost-benefit
    39
    analysis was based on outdated data and inaccurate predictions was supported by the
    credited testimony of Edward McGavran, who testified that data from 2014 was still
    being used to support the need for the IEC Project, despite the resolution of the
    congestion on the APSRI, and the reports demonstrating the significant decrease in
    congestion in the APSRI that was contrary to the initial predictions. (Hr’g Tr. at 8-
    10, R.R. Vol. 4 at 3447a-49a; OCA Statement (St.) 2 at 17 Table 3, R.R. Vol. 2 at
    1079a.) Finally, the cost-benefit analysis used to support the IEC Project did not
    consider other ways of ameliorating congestion, such as new generation, and, in fact,
    was modified in 2018 to exclude from the simulation potential future generation
    projects that had executed a Facilities Study Agreement, which is an agreement that
    identifies facility additions and upgrades. (FOF ¶¶ 73-74, 76; R.D. at 89, 93-94;
    Transource St. AA3, Ex. TJH-AA1 at 19, R.R. Vol. 4 at 3377a; OCA Hr’g Ex. 3,
    R.R. Vol. 6 at 5634a-78a; Transource Response to OCA XLIII-12, R.R. Vol. 6 at
    5648a; Hr’g Tr. at 2266-68, R.R. Vol. 3 at 2541a-43a; Hr’g Tr. at 2930-33, R.R.
    Vol. 4 at 3858a-61a.) Prior to this change, the cost-benefit ratio of the IEC Project
    in 2018 was 1.40, and after the change, the cost-benefit ratio in 2019 was 2.17. (FOF
    ¶¶ 77-78.) Ultimately, the cost-benefit analysis was evidence offered to support
    Petitioners’ claim that the IEC Project met the standard for approval under the Code
    and the Regulations and, as such, it was subject to challenge by the opposing parties
    and weighing by the Commission. In this instance, the Commission examined the
    evidence presented by all the parties, weighed it, and found the opposing parties’
    evidence more persuasive. As this Court may not reweigh the evidence, this is not
    a basis for reversing.
    Third, Petitioners assert that the Commission’s findings rejecting congestion
    as a basis for the need for the IEC Project are not supported by substantial evidence.
    40
    The findings reflect that the IEC Project was designed to resolve congestion on the
    APSRI, and that congestion on the APRSI has decreased significantly since 2014,
    such that it no longer supports the need for the IEC Project. These findings are
    supported by substantial evidence, including Petitioners’ own evidence.
    (Transource St. 2 at 7, 11, R.R. Vol. 1 at 864a; Transource St. 3 at 24-25, R.R. Vol.
    1 at 905a-06a; Transource St. 8-R, Ex. TH-5R at 2, 4-5, R.R. Vol. 2 at 1738a, 1740a-
    41a; Transource St. No. 3-AA-RJ at 8, R.R. Vol. 4 at 3662a; Hr’g Tr. at 2132-33,
    2381, 2387-88, R.R. Vol. 3 at 2662a-63a; Hr’g Tr. at 2921-23, R.R. Vol. 4 at 3849a-
    51a.)    While Petitioners claim that the IEC Project was also intended to resolve
    congestion in the AP South Area, this evidence was not found to be persuasive
    because it was not asserted as a basis for the project from the beginning, was raised
    after the APSRI congestion had substantially resolved, little detail was provided
    regarding the related constraints in the AP South Area, and the evidence did not
    show that the congestion at the later-identified facilities was within PJM’s top 25
    most congested facilities. (R.D. at 83-84, 88; OCA Hr’g Ex. 6 at 559, R.R. Vol. 7
    at 6263a; Transource St. AA3, Ex. TJH-AA1 at 19, R.R. Vol. 4 at 3377a; OCA Cross
    Ex. 7 at 2, R.R. Vol. 7 at 6505a; OCA Cross Ex. 8 at 1-2, R.R. Vol. 7 at 6408a-09a.)
    This reasoning does not reflect an abuse of discretion but is based on a review and a
    weighing of the evidence presented. Accordingly, this is not a basis for reversing.
    Fourth, Petitioners maintain the Commission’s findings rejecting the five
    potential NERC reliability violations are not supported by substantial evidence. The
    evidence of these potential reliability violations was found not to be persuasive
    because reliability violations were not the driver for the IEC Project, the potential
    reliability issues were not identified until 2018 – after OCA presented evidence in
    opposition to the congestion-based reasons, PJM did not perform its standard set of
    41
    reliability tests to confirm the need in this matter, and PJM did not rerun the
    reliability tests after other projects were approved to determine if those projects
    would resolve the potential reliability concerns. (R.D. at 83-84; Op. and Order at
    61-62.) Again, these findings are supported by substantial evidence. (Transource
    St. 7-R at 21, R.R. Vol. 2 at 1358; Transource St. 7-RJ-SUPP at 3-4, R.R. Vol. 4 at
    3108a-09a; Transource St. AA-2, Ex. SRH-AA2 at 13, R.R. Vol. 4 at 3350a; OCA
    St. 1-SSR at 16-17, R.R. Vol. 4 at 3077a-78a; OCA Hr’g Ex. 3, R.R. Vol. 6 at 5634a-
    78a; Transource Response to OCA-XLIII-10, R.R. Vol. 6 at 5647a; Hr’g Tr. at 2926-
    27, R.R. Vol. 4 at 3854a-55a.) While Petitioners argue that there was no need for
    PJM to run its standard set of reliability tests or to examine whether subsequently
    approved projects would resolve the potential issues once it determined that the IEC
    Project would do so, these arguments go to the weight to be given the evidence.
    Reviewing the conflicting evidence, the Commission reasonably held that “the
    relative weight of the evidence of . . . later-asserted bas[es] for need for the [IEC
    P]roject diminishe[d] as it bec[a]me[] more tangential to the unambiguous original
    driver[, which was the] alleviation of economic congestion on the AP[SRI].” (Op.
    and Order at 62.)
    To summarize, Petitioners discount all the evidence presented by the opposing
    parties that supports the Commission’s findings and attack this evidence as being
    overly simplistic and speculative. However, because these arguments go to the
    weight of the evidence presented, which is an issue for the factfinder and not this
    Court, and the findings of fact are supported by substantial evidence, those findings
    of fact are binding and cannot be set aside. Energy Conservation Council, 
    995 A.2d at 478
    .
    42
    D. The Rescission of the Provisional CPC and Petitioners’ Other Exceptions
    Petitioners assert that the Commission erred in rescinding Transource’s
    provisional CPC because the Commission erred in concluding the IEC Project was
    not needed, necessary, or proper. Petitioners further argue that the Commission
    erred and abused its discretion in not addressing the Exceptions related to the ALJ’s
    determination that Transource did not establish that the IEC Project met the other
    requirements for approval of the Siting Applications under Section 57.76(a) of the
    Regulations.   They similarly argue that the Commission erred and abused its
    discretion in not addressing Transource’s eminent domain applications and zoning
    petitions. Petitioners maintain that the Commission misinterpreted the requirements
    of Section 1511(a) and (c) of the Business Corporation Law of 1988 (BCL), 15
    Pa.C.S. § 1511(a), (c), by omitting the “proper” from “necessary or proper” language
    of that section in the Opinion and Order. (Petitioners’ Br. at 56-57 (quoting 15
    Pa.C.S. § 1511(a), (c)).) They request that, upon this Court finding that the IEC
    Project meets the requirements of Section 1501 of the Code and Section 1511 of the
    BCL, we remand for the Commission to resolve these Exceptions.
    The Commission and Intervenors respond there was no error or abuse in the
    Commission’s rescinding Transource’s provisional CPC because the CPC was
    granted only for the IEC Project. They further argue that the Commission did not
    err or abuse its discretion in not considering Transource’s other Exceptions. The
    Commission and Intervenors contend that because the Commission’s determination
    that the IEC Project did not meet the necessary or proper and need standards was not
    in error and was supported by substantial evidence, the other issues raised in the
    other Exceptions were moot.
    In January 2018, the Commission granted Transource a provisional CPC that
    related only to the IEC Project and the parties to those proceedings expressly
    43
    reserved the issue of the determination of need for the IEC Project for future
    proceedings on the siting of the HV transmission lines at issue. Having concluded
    that the Commission did not err or abuse its discretion in determining that
    Transource did not meet its burden of proving that the IEC Project met the standards
    for approval of transmission lines under Section 1501 of the Code and Section
    57.76(a)(1) of the Regulations, we discern no error or abuse of discretion in the
    Commission’s decision to then rescind Transource’s related provisional CPC.
    Similarly, the Commission’s decision to deny the Siting Applications pursuant to
    Section 1501 of the Code and Section 57.76(a) of the Regulations rendered the
    Exceptions that addressed other alleged errors moot, and the Commission did not err
    or abuse its discretion in not addressing those arguments on that basis.
    III.   CONCLUSION
    Because we conclude that the Commission’s decision denying the Siting
    Applications and rescinding Transource’s provisional CPC was in accordance with
    Pennsylvania law, including Sections 1501 and 2805(a) of the Code, and Section
    57.76(a) of the Regulations, and is supported by substantial, credited evidence of
    record, we affirm.
    __________________________________________
    RENÉE COHN JUBELIRER, President Judge
    Judge Fizzano Cannon did not participate in the consideration of this matter.
    44
    IN THE COMMONWEALTH COURT OF PENNSYLVANIA
    Transource Pennsylvania, LLC, and         :
    PPL Electric Utilities Corporation,       :
    Petitioners     :
    :
    v.                     :   No. 689 C.D. 2021
    :
    Pennsylvania Public Utility               :
    Commission,                               :
    Respondent       :
    ORDER
    NOW, May 5, 2022, the Order of the Pennsylvania Public Utility
    Commission, entered in the above-captioned matter, is AFFIRMED.
    __________________________________________
    RENÉE COHN JUBELIRER, President Judge