Clean Energy Fuels Corp. v. Public Utilities Commission , 227 Cal. App. 4th 641 ( 2014 )


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  • Filed 5/29/14; pub. & mod. order 6/27/14 (see end of opn.)
    IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA
    FOURTH APPELLATE DISTRICT
    DIVISION THREE
    CLEAN ENERGY FUELS CORP.,
    Petitioner,                                             G048820
    v.                                                   (CPUC Nos. D.12-12-037 &
    D.13-10-042)
    CALIFORNIA PUBLIC UTILITIES
    COMMISSION,                                                  OPINION
    Respondent,
    SOUTHERN CALIFORNIA GAS
    COMPANY,
    Real Party in Interest.
    Original proceedings; review of decisions of the Public Utilities
    Commission of the State of California. Decisions affirmed.
    Goodin, MacBride, Squeri, Day & Lamprey, Thomas J. MacBride, Anne H.
    Hartman; Alcantar & Kahl, Evelyn Kahl and Katherine Rosenberg for Petitioner.
    Frank R. Lindh, Helen W. Yee and Monica McCrary for Respondent.
    Steven D. Patrick, Jason Egan; Jones Day, Charles C. Read and Haley
    McIntosh for Real Party in Interest.
    *             *             *
    Clean Energy Fuels Corp. (Clean Energy) files petitions for writ of review
    to challenge the California Public Utilities Commission’s (PUC) decisions approving
    Southern California Gas Company’s (SoCalGas) application for a “Compression Services
    Tariff.” Under the tariff, SoCalGas would design, build, own, operate, and maintain
    equipment on nonresidential customers’ property to compress, store, and dispense natural
    gas above standard line pressure for customer end-use applications, including natural gas
    vehicle refueling, combined heat and power facilities, and peaking power plants.
    Clean Energy contends we must annul the PUC’s decisions because the
    competitive advantages SoCalGas has as a regulated monopoly utility allows it to
    unfairly compete with nonutility enterprises in the unregulated compressed natural gas
    market. According to Clean Energy, the PUC’s decisions approving the Compression
    Services Tariff are inconsistent with approximately 20 years of PUC precedent
    establishing policies and rules to promote the development of alternative fuel vehicle
    markets through fair competition. Clean Energy also contends the PUC failed to make
    adequate findings explaining its reasons for rejecting Clean Energy’s proposal to have
    SoCalGas provide the proposed compression services through an unregulated affiliate
    that cannot exploit SoCalGas’s competitive advantages. Finally, Clean Energy
    challenges the sufficiency of the evidence to support the PUC’s findings the Compression
    Services Tariff will expand the use of compressed natural gas in the Los Angeles area
    and thereby reduce air pollution and greenhouse gas emissions.
    We affirm the PUC’s decisions approving the Compression Services Tariff.
    The PUC’s decisions acknowledge SoCalGas’s monopoly status could provide it with
    unfair competitive advantages over nonutility enterprises, and therefore the PUC imposed
    2
    several reporting, cost tracking, and marketing restrictions on SoCalGas to prevent it
    from unfairly competing. With those restrictions in place, the PUC determined the
    Compression Services Tariff does not provide SoCalGas unfair competitive advantages
    and PUC precedent supports adoption of the tariff. We conclude the evidence in the
    record and the PUC’s findings support those determinations and the PUC’s rejection of
    Clean Energy’s unregulated affiliate proposal. We also conclude substantial evidence
    supports the PUC’s findings the Compression Services Tariff will increase natural gas
    use and thereby reduce air pollution and greenhouse gas emissions.
    I
    FACTS AND PROCEDURAL HISTORY
    SoCalGas is a public utility and regulated monopoly provider of natural gas
    for all of Southern California except San Diego. The PUC regulates SoCalGas by
    establishing the official rates and terms of its service through various tariffs and rules.1
    SoCalGas delivers natural gas to its customers at standard pressures that range from
    one-third of a pound per square inch to several hundred pounds per square inch
    depending on where the customer connects to SoCalGas’s distribution system. SoCalGas
    does not guarantee nonstandard pressure levels under its standard tariff terms.
    SoCalGas’s Tariff Rule No. 2, however, states nonstandard “delivery
    pressures can be provided upon request and acceptance by [SoCalGas],” including any
    “pressure as [SoCalGas] and the Customer agree to.” Tariff Rule No. 2 authorizes
    1        “‘Tariffs’ refer collectively to the sheets that a utility must file, maintain,
    and publish as directed by the [PUC], and that set forth the terms and conditions of the
    utility’s services to its customers.” (PUC General Order 96-B, § 3.15, p. 4; Southern Cal.
    Edison Co. v. Public Utilities Com. (2000) 
    85 Cal. App. 4th 1086
    , 1097 (Southern Cal.
    Edison) [“tariff – ‘a schedule “showing all rates, tolls, rentals, charges, and classifications
    . . . together with all rules, contracts, privileges, and facilities which in any manner affect
    or relate to rates, tolls, rentals, classifications, or service”’” (footnote omitted)].)
    3
    SoCalGas to enter into special commercial agreements with customers to plan, build,
    own, operate, and maintain special facilities to deliver gas under pressure conditions that
    depart from standard system pressure conditions at the customer’s location. The PUC’s
    General Order No. 58-A, entitled Standards for Gas Service in the State of California,
    further authorizes SoCalGas and all other regulated gas providers to supply gas at
    nonstandard pressure upon a customer’s request.
    In November 2011, SoCalGas applied for PUC approval to expand its
    compression services and establish more uniform service terms. SoCalGas’s application
    explained it sought to provide “a new tariff service . . . to meet the current and future
    needs of non-residential customers requiring natural gas compression above standard line
    pressure for customer end-use applications. Examples of customer end-use applications
    that can be served under the proposed tariff include Natural Gas Vehicle . . . refueling
    operations, Combined Heat and Power . . . facilities, and peaking power plants.”
    Under the Compression Services Tariff, “SoCalGas will design, procure,
    construct, own, operate, and maintain on customer premises, equipment associated with
    the compression of natural gas in order to meet customer-specified pressure
    requirements.” “SoCalGas will not, however, conduct activities beyond the point of the
    customer’s receipt of compression service and, as a consequence, will neither own,
    operate, or maintain facilities nor conduct business operations beyond the point of service
    delivery.” “SoCalGas will price the tariff via a [standardized] service contract that
    includes cost and rate components, adjustments, performance requirements and payment
    terms agreed upon in advance by the customer and SoCalGas.”
    Clean Energy “is the largest provider of natural gas fuel for transportation
    in North America and a global leader in the expanding natural gas vehicle market.” It
    competes with more than 35 other companies in Southern California to design, build,
    own, operate, and maintain natural gas vehicle refueling stations. At the time of the tariff
    application, Clean Energy had built 62 natural gas vehicle refueling stations in
    4
    SoCalGas’s service area (23 percent of the stations), and combined with one other
    competitor (Integrys Transportation Fuels, LLC) to service 82 percent by volume of all
    compressed natural gas in SoCalGas’s service area. SoCalGas supplies the natural gas
    for Clean Energy’s customers; Clean Energy simply compresses that gas to the pressure
    required by its customers’ natural gas vehicles. To bid and construct a refueling station,
    Clean Energy requires information from SoCalGas concerning its supply line to Clean
    Energy’s customers and also requires SoCalGas’s cooperation to connect Clean Energy’s
    facilities to SoCalGas’s distribution system.
    Clean Energy filed a protest with the PUC to challenge SoCalGas’s
    Compression Services Tariff. The opposition argued SoCalGas’s status as the monopoly
    gas supplier for customers within its service area enables SoCalGas to unfairly compete
    with Clean Energy and all other compression service providers, and therefore approval of
    the Compression Services Tariff would be inconsistent with approximately two decades
    of PUC decisions establishing policies and rules to promote the development of
    alternative fuel vehicle markets through fair competition. (See Opinion on Low Emission
    Vehicle Policy Guidelines (July 21, 1993) 145 P.U.R.4th 243 [1993 Cal. PUC Lexis 574]
    (Phase I LEV Guidelines); Opinion on Low Emission Vehicle Policy Guidelines Phase II
    (Nov. 21, 1995) 165 P.U.R.4th 503 [1995 Cal. PUC Lexis 978] (Phase II LEV
    Guidelines); Opinion Adopting Standards of Conduct Governing Relationships Between
    Utilities and Their Affiliates (Dec. 16, 1997) 183 P.U.R.4th 503 [1997 Cal. PUC Lexis
    1139] (Affiliate Transaction Rules); Phase 2 Decision Establishing Policies to Overcome
    Barriers to Electric Vehicle Deployment and Complying with Public Utilities Code
    Section 740.2 (July 14, 2011) 292 P.U.R.4th 169 [2011 Cal. PUC Lexis 394] (Electric
    Vehicle Policies).) According to Clean Energy, the PUC’s decision in Affiliate
    Transaction Rules required an unregulated affiliate of SoCalGas to provide the proposed
    services under the Compression Services Tariff because it would not share any of the
    ratepayer resources available to SoCalGas as a monopoly utility (Affiliate Option).
    5
    In June 2012, an administrative law judge conducted a two-day evidentiary
    hearing on SoCalGas’s application. The judge issued a proposed decision approving the
    application in November 2012, and the PUC approved that decision in December 2012
    after considering objections from Clean Energy and others. PUC Decision
    No. 12-12-037 approved SoCalGas’s Compression Services Tariff subject to several
    reporting, cost tracking, and marketing restrictions designed to protect ratepayers and
    prevent SoCalGas from unfairly competing in the compressed gas services market. With
    the restrictions it imposed, the PUC found the new tariff “is in the public interest because
    it offers additional choice to consumers and makes more widely available a service that
    reduces the health and environmental impacts from air pollution, reduces greenhouse gas
    emissions, and will lead to an increase in the use of natural gas, an alternative to gasoline
    and diesel fuel.”
    The restrictions the PUC imposed on SoCalGas’s Compression Services
    Tariff include (1) prohibiting SoCalGas from using bill inserts to promote the
    Compression Services Tariff; (2) requiring SoCalGas to use competitively neutral scripts
    approved by the PUC when responding to any customer inquiries regarding compressed
    natural gas services; (3) requiring SoCalGas to post on its Web site competitively neutral
    information about the Compression Services Tariff that also identifies all other
    companies offering the same or similar compression services; (4) requiring SoCalGas to
    provide equal treatment to customers seeking compression services from SoCalGas and
    customers seeking compression services from other providers; (5) requiring SoCalGas to
    file a “semiannual report pertaining to its provision of services needed to prepare for the
    receipt of compressed natural gas by utility and non-utility customers”; and (6) requiring
    SoCalGas to establish balancing and tracking accounts and to price its compression
    6
    services to ensure the customers receiving those services bear all costs and risks, and that
    ordinary ratepayers do not subsidize the services.2
    The required semiannual report must be served on all parties participating
    in the administrative proceedings on the Compression Services Tariff and must include
    (1) information on the total volume of compressed gas services provided in SoCalGas’s
    service territory and the volume of compressed gas services provided under the
    Compression Services Tariff; (2) information on several specific performance indicators
    showing how SoCalGas treated projects under the Compression Services Tariff and
    projects undertaken by other compression services providers; (3) SoCalGas management
    certifications stating “no preference has been shown to any [Compression Services
    Tariff] project in the provision of gas service by SoCalGas”; and (4) “Customer
    certification forms from each [Compression Services Tariff] customer verifying their
    awareness that the [tariff] is an optional tariff, that taking service under the [tariff]
    provides no preference in the provision of any service from SoCalGas, that they are
    aware that the same or similar services as the [tariff] may be provided by others and that
    they have received a list of such providers.”
    Claiming the PUC made numerous legal and factual errors in approving
    SoCalGas’s Compression Services Tariff, Clean Energy applied to the PUC for a
    rehearing. When the PUC failed to take action on the rehearing application, Clean
    Energy filed its original petition for writ of review asking this court to review Decision
    No. 12-12-037. In October 2013, the PUC issued Decision No. 13-10-042 to modify
    Decision No. 12-12-037 and deny Clean Energy’s rehearing application.3 Decision
    2      As the Decisions explain, a balancing account is a “mechanism to credit
    back ratepayers for the use of services that are paid through the utilities embedded costs,”
    and a tracking account “track[s] both the costs and revenues related to a specific project.”
    3      We refer to Decision No. 12-12-037 and Decision No. 13-10-042
    collectively as the Decisions.
    7
    No. 13-10-042 clarified some of the findings made in Decision No. 12-12-037 and issued
    a few additional findings to address some of Clean Energy’s contentions, but Decision
    No. 13-10-042 otherwise approved SoCalGas’s Compression Services Tariff subject to
    the same restrictions Decision No. 12-12-037 imposed. All parties stipulated to allow
    Clean Energy to file an amended petition for writ of review restating its challenges to the
    PUC’s approval of the Compression Services Tariff based on both Decisions.
    II
    DISCUSSION
    A.     The PUC and the Standard of Review
    “[The PUC] is the agency charged with regulating public utilities pursuant
    to article XII of the California Constitution and the Public Utilities Act . . . .” (SFPP,
    L.P. v. Public Utilities Com. (2013) 
    217 Cal. App. 4th 784
    , 790 (SFPP).) “‘[It] is
    authorized to supervise and regulate public utilities and to “do all things . . . which are
    necessary and convenient in the exercise of such power and jurisdiction” [citation]. . . .
    Adverting to these provisions, we have described [the] PUC as “‘a state agency of
    constitutional origin with far-reaching duties, functions and powers’” whose “‘power to
    fix rates [and] establish rules’” has been “‘liberally construed.’”’ [Citation.]” (City of
    Huntington Beach v. Public Utilities Com. (2013) 
    214 Cal. App. 4th 566
    , 584 (Huntington
    Beach); SFPP, at p. 790 [“‘The PUC is not an ordinary administrative agency, but a
    constitutional body with far-reaching powers, duties and functions’”].) Here, all parties
    agree the PUC had jurisdiction to approve SoCalGas’s Compression Services Tariff
    under its ratemaking authority.
    PUC decisions must “contain, separately stated, findings of fact and
    conclusions of law . . . on all issues material to the order or decision.” (Pub. Util. Code,
    8
    § 1705.)4 “‘Every issue that must be resolved to reach that ultimate finding is “material
    to the order or decision,”’ and findings are required of the basic facts upon which the
    ultimate finding is based. [Citations.] [¶] . . . [S]uch findings afford a rational basis for
    judicial review and assist the reviewing court to ascertain the principles relied upon by
    the [PUC] and to determine whether it acted arbitrarily, as well as assist parties to know
    why the case was lost and to prepare for rehearing or review, assist others planning
    activities involving similar questions, and serve to help the [PUC] avoid careless or
    arbitrary action. [Citation.]” (Greyhound Lines, Inc. v. Public Utilities Com. (1967)
    
    65 Cal. 2d 811
    , 813.)
    Any party aggrieved by a PUC decision may petition the court of appeal or
    Supreme Court for a writ of review to “hav[e] the lawfulness of the original order or
    decision or of the order or decision on rehearing inquired into and determined.” (§ 1756,
    subd. (a).) Our review of the PUC’s Decisions on SoCalGas’s Compression Services
    Tariff is “circumscribed” (Huntington 
    Beach, supra
    , 214 Cal.App.4th at p. 583) and may
    extend no further than to determine, on the basis of the entire record, whether (1) the
    PUC “acted without, or in excess of, its powers or jurisdiction”; (2) the PUC failed to
    proceed in the manner required by law; (3) the PUC’s findings do not support its
    decision; (4) the PUC’s findings are not supported by substantial evidence in the record;
    (5) the PUC’s decision “was procured by fraud or was an abuse of discretion”; and (6) the
    PUC’s decision “violates any right of the petitioner under the Constitution of the United
    States or the California Constitution.” (§ 1757, subd. (a).) In conducting our review, we
    are not permitted to “to hold a trial de novo, to take evidence other than as specified by
    the California Rules of Court, or to exercise [our] independent judgment on the
    evidence.” (§ 1757, subd. (b).)
    4   All statutory references are to the Public Utilities Code unless otherwise
    stated.
    9
    “‘There is a strong presumption of validity of the [PUC’s] decisions
    [citations], and [its] interpretation of the Public Utilities Code should not be disturbed
    unless it fails to bear a reasonable relation to statutory purposes and language
    [citations].’ [Citation.]” (Ames v. Public Utilities Com. (2011) 
    197 Cal. App. 4th 1411
    ,
    1418.) Similarly, the PUC’s interpretation of its own regulations and decisions “is
    entitled to consideration and respect by the courts. . . . ‘“A court is more likely to defer
    to an agency’s interpretation of its own regulation than to its interpretation of a statute,
    since the agency is likely to be intimately familiar with regulations it authored and
    sensitive to the practical implications of one interpretation over another.”’ [Citation.]”
    (Southern Cal. 
    Edison, supra
    , 85 Cal.App.4th at p. 1096.) With those principles in mind,
    the interpretation of statutes and regulations nonetheless remains a question of law
    subject to our independent review. (Ibid.)
    We review any challenge to the evidentiary support for the PUC’s findings
    under the substantial evidence standard: “‘The court must consider all relevant evidence
    in the record, but “‘[i]t is for the agency to weigh the preponderance of conflicting
    evidence [citation]. Courts may reverse an agency’s decision only if, based on the
    evidence before the agency, a reasonable person could not reach the conclusion reached
    by the agency.’” [Citation.]’ [Citation.]” 
    (SFPP, supra
    , 217 Cal.App.4th at p. 794.)
    “[T]he findings of fact by the [PUC] are to be accorded the same weight that is given to
    jury verdicts and the findings are not open to attack for insufficiency if they are supported
    by any reasonable construction of the evidence. [Citation.] . . . ‘When conflicting
    evidence is presented from which conflicting inferences can be drawn, the [PUC’s]
    findings are final.’ [Citation.]” (Toward Utility Rate Normalization v. Public Utilities
    Com. (1978) 
    22 Cal. 3d 529
    , 537-538 (Toward Utility Rate Normalization).)
    We previously issued a writ of review and ordered the PUC to prepare and
    certify the record of its proceedings. We now proceed to consider the merits of Clean
    Energy’s challenges.
    10
    B.     The Compression Services Tariff Does Not Allow SoCalGas to Unfairly Compete
    Section 740.3 requires the PUC to work with SoCalGas and all other
    regulated utilities to establish policies and programs to “promote the development of
    equipment and infrastructure needed to facilitate the use of electric power and natural gas
    to fuel low-emission vehicles,” including “compressor stations for natural gas fueled
    vehicles.” (§ 740.3, subd. (a).) In doing so, the PUC must “ensure that utilities do not
    unfairly compete with nonutility enterprises” (§ 740.3, subd. (c)), and therefore all parties
    agree the PUC was required to find the Compression Services Tariff does not allow
    SoCalGas to unfairly compete with nonutility enterprises.
    Clean Energy’s principal line of attack is that the PUC’s Decisions
    approving the Compression Services Tariff fail to ensure SoCalGas will not unfairly
    compete with nonutility enterprises in the unregulated compression services market.
    Specifically, Clean Energy contends the Decisions (1) allow SoCalGas to exploit its
    monopoly status to unfairly compete with nonutility enterprises; (2) contradict previous
    PUC decisions prohibiting SoCalGas from directly competing in the market to design,
    construct, own, and maintain compressed natural gas refueling stations on customer
    property; and (3) approve the Compression Services Tariff based on findings unsupported
    by substantial evidence in the record. We will address each of these contentions in turn.
    1.      The Restrictions the Decisions Imposed Prevent Unfair Competition Based
    on SoCalGas’s Status as a Monopoly Utility
    Clean Energy contends the PUC failed to proceed in the manner required
    by law because its Decisions allow SoCalGas to exploit three advantages it enjoys as a
    monopoly natural gas utility to unfairly compete with nonutility enterprises in the
    unregulated compressed natural gas market. We do not find this contention persuasive
    because it ignores many of the findings the PUC made and also the reporting, cost
    tracking, and marketing restrictions the Decisions imposed on SoCalGas to prevent unfair
    competition.
    11
    The first purported advantage Clean Energy identifies is that SoCalGas has
    no need to expend funds or effort to generate customer leads because all customers
    interested in constructing compressed natural gas infrastructure likely will start their
    inquiries by contacting SoCalGas as the exclusive natural gas supplier within its service
    area. According to Clean Energy, that contact is facilitated by monthly billing statements
    SoCalGas sends all natural gas users with its phone number, Web address, and sometimes
    bill inserts discussing compressed natural gas services. Moreover, Clean Energy
    contends each customer seeking to install compressed natural gas infrastructure must
    contact SoCalGas to determine the requirements for connecting to SoCalGas’s
    distribution system and SoCalGas must visit the customer’s site to determine its
    particular requirements.
    The second alleged advantage SoCalGas gains over its competitors is that
    SoCalGas has used and will continue to use customer databases and employees paid for
    by ordinary ratepayers to develop and market the Compression Services Tariff. In Clean
    Energy’s view, this allows SoCalGas to unfairly subsidize its compression services with
    ordinary ratepayer resources. The third advantage Clean Energy identifies is that
    SoCalGas’s status as a monopoly utility guarantees it a revenue stream that debt and
    equity markets view favorably and therefore significantly reduces SoCalGas’s costs in
    accessing those markets, a benefit not enjoyed by other compression service providers.
    According to Clean Energy, SoCalGas will finance the equipment necessary for its
    compression services at a lower capital cost than its competitors.
    The Decisions flatly reject the last of these three purported unfair
    advantages, finding “SoCalGas’s low cost of capital does not give it an unfair
    competitive advantage over non-utilities providing compressed gas services.” (Italics
    added.) The Decisions explain the cost for SoCalGas to access equity and debt markets,
    like other publicly traded companies, is based on SoCalGas’s creditworthiness and
    nothing in the record supports Clean Energy’s contention SoCalGas’s cost of capital is
    12
    derived from its status as a monopoly utility provider and not other financial
    characteristics. As the PUC explained, it distinguished the advantages arising from
    monopoly regulation “from those that arise from market forces” and therefore do not
    provide an unfair competitive advantage. Moreover, the Decisions point out at least one
    significant competitor, Integrys Transportation Fuels, was able to access capital markets
    at a lower cost than SoCalGas, and other large companies such as Shell Oil and General
    Electric may enter the compression services market in California with capital costs
    comparable to or lower than SoCalGas’s.
    Clean Energy does not challenge any of these findings, but rather points to
    evidence showing its cost of capital is significantly higher than SoCalGas’s. This one
    fact is not enough to overcome the substantial evidence in the record supporting the
    PUC’s findings that SoCalGas’s cost of capital does not provide it with an unfair
    advantage. (Toward Utility Rate 
    Normalization, supra
    , 22 Cal.3d at pp. 537-538 [when
    evidence supports conflicting inferences the PUC’s findings are final].) Accordingly, we
    reject Clean Energy’s contention SoCalGas’s cost of capital provides it with an unfair
    competitive advantage.
    As for the purported advantages arising from the necessity for all potential
    compression services customers to contact SoCalGas and the ratepayer resources
    SoCalGas has, the Decisions conclude the PUC’s reporting, cost tracking, and marketing
    restrictions eliminate any unfair competitive advantages SoCalGas might have enjoyed.
    Despite the Decisions’ express reliance on the restrictions as the basis for its conclusion
    the Compression Services Tariff does not allow SoCalGas to unfairly compete, Clean
    Energy’s amended petition challenges only the restriction requiring SoCalGas to file a
    semiannual report on the volume of all compression services in SoCalGas’s service area
    and its responsiveness to customers seeking those services from other providers.
    Citing City of Los Angeles v. Public Utilities Com. (1975) 
    15 Cal. 3d 680
    (City of Los Angeles), Clean Energy contends requiring future SoCalGas reports does not
    13
    discharge the PUC’s present duty to prevent unfair competition. In City of Los Angeles,
    the PUC refused to impose annual adjustments on a utility’s rates to account for future
    cost changes because it lacked authority to impose future rate adjustments without a
    hearing. (Id. at p. 695.) Instead, the PUC required the utility to file periodic financial
    reports and reserved jurisdiction to reopen the proceedings on the utility’s rates based on
    those reports. The California Supreme Court rejected the reporting requirement because
    it found the PUC had authority to impose annual adjustments and reserving jurisdiction to
    change the utility’s rates in the future did not discharge the PUC’s present duty to set a
    reasonable rate. (Id. at p. 704, fn. 40.)
    City of Los Angeles is readily distinguishable. Here, the PUC is not using
    the reporting requirement to avoid its present duty to prevent unfair competition. To the
    contrary, the PUC imposed numerous other restrictions that it found will prevent
    SoCalGas from unfairly competing. The PUC’s reporting requirement is merely a means
    to monitor and enforce its restrictions. Clean Energy fails to account for the numerous
    other restrictions the PUC imposed and relied upon to conclude the Compression
    Services Tariff does not allow SoCalGas to unfairly compete.
    In its reply brief, Clean Energy argues for the first time that we should
    annul the Decisions because the PUC failed to make findings on the effectiveness of the
    restrictions in preventing unfair competition and the record contains no evidence the
    restrictions would prevent unfair competition. Clean Energy, however, forfeited this
    challenge by failing to raise it in the amended petition. (See, e.g., Habitat & Watershed
    Caretakers v. City of Santa Cruz (2013) 
    213 Cal. App. 4th 1277
    , 1292, fn. 6 [“[a]rguments
    presented for the first time in an appellant’s reply brief are considered waived”]; Holmes
    v. Petrovich Development Co., LLC (2011) 
    191 Cal. App. 4th 1047
    , 1064, fn. 2 [“argument
    is forfeited” where “it is raised for the first time in [appellant’s] reply brief without a
    showing of good cause”].)
    14
    Moreover, we reject Clean Energy’s belated challenges to the restrictions
    on their merits. Clean Energy argues the PUC’s findings on the restrictions are “classic
    ultimate findings” that fail to explain how the restrictions will prevent unfair competition.
    As an example, Clean Energy contends the findings fail to explain how filing a report
    will ensure SoCalGas provides equal treatment to all customers seeking compression
    services. Clean Energy misstates the governing standard for evaluating the PUC’s
    findings and ignores much of the PUC’s discourse on the restrictions it placed on
    SoCalGas.
    In evaluating the adequacy of the PUC’s findings, we consider the entirety
    of both Decisions. (Toward Utility Rate 
    Normalization, supra
    , 22 Cal.3d at p. 540;
    Utility Consumers’ Action Network v. Public Utilities Com. (2004) 
    120 Cal. App. 4th 644
    ,
    661.) Clean Energy, however, faults the PUC’s findings based solely on the sections in
    Decision No. 12-12-037 that contain the findings of fact and conclusions of law, but
    ignores the numerous pages of discussion in both Decisions that precede those sections
    and address the restrictions at length. Moreover, the governing standards did not require
    the PUC’s Decisions to provide detailed explanations on how each restriction would
    prevent SoCalGas from unfairly competing; rather, the Decisions need only include
    statements that provide the appellate court a meaningful opportunity to ascertain the
    principles and facts on which the PUC relied. (Toward Utility Rate Normalization, at
    p. 540.) The Decisions did so.
    For example, the Decisions acknowledge SoCalGas could unfairly compete
    with nonutility enterprises if it used ordinary ratepayer funds to subsidize the services it
    provides under the Compression Services Tariff. To prevent this, the Decisions
    (1) require SoCalGas to price its compression services at a level sufficient to cover all
    costs and risks associated with those services, and (2) prohibit SoCalGas from using any
    ordinary ratepayer funds to cover those costs and risks. To ensure compliance with these
    restrictions, the Decisions require SoCalGas to establish separate accounts to track and
    15
    balance all costs and risks associated with its compression services. These specific
    restrictions address Clean Energy’s complaints about unfair competitive advantages and
    satisfy the PUC’s findings requirement.
    Clean Energy nonetheless contends the PUC’s Affiliate Transaction Rules
    decision rejects using these cost accounting methods to prevent unfair competition.
    Decision No. 13-10-042, however, specifically addressed that argument and found the
    facts in the Affiliate Transaction Rules decision distinguishable and did not prevent the
    PUC from utilizing these accounting methods because the PUC imposed several
    additional restrictions to prevent unfair competition. As explained above, we defer to the
    PUC’s interpretation of its own regulations and decisions when its interpretation is
    reasonable. (Southern Cal. 
    Edison, supra
    , 85 Cal.App.4th at p. 1096.) Here, the PUC
    met that standard because the Affiliate Transaction Rules decision merely stated that cost
    accounting “may not be adequate” to prevent unfair competition depending on the
    surrounding circumstances.5 (183 P.U.R.4th 503 [1997 Cal. PUC Lexis 1139, at p. *17].)
    Accordingly, we conclude SoCalGas’s status as a monopoly utility provider
    does not provide it with unfair competitive advantages because the PUC imposed specific
    restrictions on SoCalGas to prevent it from unfairly competing.
    2.     The PUC’s Approval of the Compression Services Tariff is not Inconsistent
    with Prior PUC Decisions
    Clean Energy contends the PUC failed to proceed in the manner required
    by law because the Decisions are inconsistent with four earlier decisions establishing the
    PUC’s policies and rules on utilities participating in alternative fuel vehicle markets, and
    5       Clean Energy’s reply brief also asserts the PUC’s Affiliate Transaction
    Rules decision rejects the prohibition against billing inserts and the use of approved
    neutral scripts and Web site postings to prevent unfair competition. Decision 13-10-042,
    however, also specifically finds that decision did not prevent the use of those restrictions
    to eliminate unfair competition in this case.
    16
    the Decisions fail to make findings to justify their inconsistencies with those earlier
    precedents. We disagree.
    The first PUC decision on which Clean Energy relies is the Phase II LEV
    Guidelines decision. Clean Energy contends that decision bars SoCalGas from owning
    natural gas vehicle refueling stations on customer property and from otherwise unfairly
    competing with any nonutility enterprise that builds or operates refueling stations. This
    misconstrues the Phase II LEV Guidelines decision and ignores the Decisions’ findings
    concerning that decision.
    The Phase II LEV Guidelines decision was the second of two PUC
    decisions addressing the role of regulated utilities in developing the infrastructure
    necessary to support both natural gas vehicles and electric vehicles. (165 P.U.R.4th 503
    [1995 Cal. PUC Lexis 978, at p. *1].) The decision approved the continued use of
    ratepayer funds for certain low-emission vehicle programs, but denied SoCalGas’s
    request to build and operate retail refueling stations on customer property using ratepayer
    funds.6 (165 P.U.R.4th 503 [1995 Cal. PUC Lexis 978, at pp. *2, *115-*116].) Because
    the PUC found many companies were interested in constructing and operating refueling
    stations, the Phase II LEV Guidelines decision prohibited SoCalGas and other utilities
    from using ratepayer funds to construct retail refueling stations and thereby place
    ratepayers at risk for the commercial viability of those stations. The Phase II LEV
    Guidelines decision, however, did not generally prohibit utilities from constructing or
    owning refueling stations, but rather established that any future program for refueling
    stations must not give the utility a market advantage or place the program’s risk on
    ratepayers. (165 P.U.R.4th 503 [1995 Cal. PUC Lexis 978, at pp. *123-*124].)
    Although the Phase II LEV Guidelines decision concluded it was inappropriate for
    6       The Phase II LEV Guidelines decision also denied SoCalGas’s request to
    pass on to ratepayers any losses it suffered from the sale of the stations it already had
    built. (165 P.U.R.4th 503 [1995 Cal. PUC Lexis at p. *124].)
    17
    utilities to own and operate retail refueling stations using ratepayer funds, the decision
    concluded it would be appropriate for utilities to do so using shareholder funds.
    (165 P.U.R.4th 503 [1995 Cal. PUC Lexis 978, at pp.*16-*17, *124].)
    The PUC found the Compression Services Tariff is not inconsistent with
    the Phase II LEV Guidelines decision because the tariff does not authorize SoCalGas to
    build and operate retail refueling stations using ratepayer funds. Instead, the
    Compression Services Tariff allows SoCalGas to build and maintain refueling stations
    and other compression facilities at a customer’s request provided the customers under the
    Compression Services Tariff bear all the costs and risks associated with the station or
    facility. Moreover, as described above, the Compression Services Tariff imposes
    numerous restrictions on SoCalGas’s compression services to ensure it does not unfairly
    compete with nonutility enterprises. Clean Energy does not challenge the PUC’s findings
    that the Phase II LEV Guidelines decision did not apply to the Compression Services
    Tariff. Moreover, we must defer to the PUC’s interpretation of its own decision because
    the interpretation is reasonable and consistent with the decision’s rationale. (Southern
    Cal. 
    Edison, supra
    , 85 Cal.App.4th at p. 1096.)
    Clean Energy also relies on the Affiliate Transaction Rules decision. Clean
    Energy contends this decision requires SoCalGas to provide new services like those
    described in the Compression Services Tariff through an unregulated affiliate that does
    not share resources with SoCalGas, does not unfairly compete with nonutility enterprises
    providing similar services, and does not use ratepayer resources. Clean Energy again
    misconstrues the Affiliate Transaction Rules decision and ignores the PUC’s findings
    distinguishing that decision.
    The Affiliate Transaction Rules decision acknowledges many utilities
    provide new products and services through unregulated affiliates. To monitor this
    development, the decision established standards to maintain separation between utilities
    and their unregulated affiliates and thereby ensure the affiliates do not use the utilities’
    18
    market power to unfairly compete with nonutility enterprises. (183 P.U.R.4th 503
    [1997 Cal. PUC Lexis 1139, at pp. *15-*17].) The Affiliate Transaction Rules decision,
    however, authorizes utilities to offer “[u]nbundled versions of existing utilities products
    and services, with the unbundled versions being offered on a tariffed basis,” and “[n]ew
    products and services that are offered on a tariffed basis.” In those situations, an
    unregulated affiliate is not required. (183 P.U.R.4th 503 [1997 Cal. PUC Lexis 1139, at
    p. *214].)
    The PUC found the Affiliate Transaction Rules decision does not require
    SoCalGas to offer the services described in the Compression Services Tariff through an
    unregulated affiliate because those services are either an unbundled version of the
    compression services SoCalGas already offers under its Tariff Rule No. 2 or a new
    product or service SoCalGas will offer on a tariffed basis. The record supports these
    findings. As explained above, SoCalGas’s Tariff Rule No. 2 already allows SoCalGas to
    construct, own, and maintain special facilities on customer property to provide natural
    gas at nonstandard pressure agreed upon by the customer and SoCalGas. The
    compression services the Compression Services Tariff authorizes are a version of those
    same services and will be provided on a tariffed basis. Assuming the services offered
    under the Compression Services Tariff are new services, they still fall under the
    exceptions to the Affiliated Tariff Rules decision described above because they will be
    offered on a tariffed basis. Moreover, we must defer to SoCalGas’s interpretation of its
    Affiliate Transaction Rules decision because its interpretation is reasonable based on the
    language quoted above. (Southern Cal. 
    Edison, supra
    , 85 Cal.App.4th at p. 1096.)
    Clean Energy contends the Compression Services Tariff is not a true tariff
    because it fails to set a specific rate or charge for compression services, and therefore the
    exceptions to the Affiliated Transaction Rules decision for certain services offered on a
    tariffed basis do not apply. True, the Compression Services Tariff does not set a specific
    rate or charge for its services, but it requires SoCalGas to “use well established
    19
    methodologies identical to those used in general rate cases, to set the price of this
    service” and to negotiate the specific price with each customer based on “cost and rate
    components, adjustments, performance requirements and payment terms” required by the
    specific compression services the customer requests. The Compression Services Tariff
    also requires “the tariff customer [to] bear[] the cost of the services received.” Tariff
    Rule No. 2 does not set a specific rate or charge for the compression services it
    authorizes, but none of the parties contend those services are not properly offered on a
    tariffed basis. Moreover, Clean Energy fails to cite any authority requiring a specific rate
    or charge for services to be offered on a tariffed basis. We therefore reject this
    contention.
    The third and fourth decisions on which Clean Energy relies are the Phase I
    LEV Guidelines decision and the Electric Vehicle Policies decision. Clean Energy does
    not contend these decisions establish any specific rules that prohibit SoCalGas from
    offering the services described in the Compression Services Tariff. Instead, Clean
    Energy merely contends these decisions prohibit SoCalGas from unfairly competing with
    any nonutility enterprise. As explained above, the PUC imposed numerous restrictions
    on the Compression Services Tariff to prevent SoCalGas from unfairly competing with
    nonutility enterprises. Consequently, Clean Energy’s challenge to the Compression
    Services Tariff based on any purported inconsistencies with these decisions fails.7
    7        Clean Energy suggests SoCalGas may not own refueling equipment on a
    customer’s property because the Electric Vehicles Policies decision denied the request of
    electric utilities to own electric vehicle recharging stations on customer property. The
    Decisions found the Electric Vehicle Policies decision only applies to electric vehicle
    refueling stations, not natural gas refueling stations, and an analogy cannot be drawn
    between the two. Clean Energy does not challenge this finding.
    20
    3.     Substantial Evidence Supports the PUC’s Findings on Unfair Competition
    Clean Energy challenges the sufficiency of the evidence to support two of
    the PUC’s findings concerning unfair competition. In finding No. 9, the PUC concluded,
    “SoCalGas’s low cost of capital does not give it an unfair competitive advantage over
    non-utilities providing compressed gas services.” Clean Energy contends the record
    lacks substantial evidence to support this finding because the evidence shows SoCalGas’s
    status as a monopoly utility provider allows it to borrow money and raise capital at a
    substantially lower rate than its nonutility competitors. According to Clean Energy, it
    costs SoCalGas less to access the debt and equity markets because its nearly six million
    captive ratepayers provide it with a guaranteed revenue stream and the PUC is required to
    set SoCalGas’s rates at a level that guarantees a stable rate of return. Based on our
    review of the record, substantial evidence supports the PUC’s finding.
    As explained above, the record reveals numerous factors determine
    SoCalGas’s capital costs other than its status as a monopoly utility, and SoCalGas’s
    monopoly status does not guarantee it lower capital costs than nonutility competitors.
    Although the record shows SoCalGas’s cost of capital is lower than Clean Energy’s, that
    is not an unfair advantage that arises from SoCalGas’s monopoly status because the
    record also shows that at least one nonutility competitor, Integrys Transportation Fuels,
    has a capital cost lower than SoCalGas’s and other large companies are considering
    entering California’s compression services market with capital costs comparable to or
    lower than SoCalGas’s. This constitutes substantial evidence supporting the PUC’s
    finding No. 9. (See Los Angeles County Dept. of Children & Family Services v. Superior
    Court (2013) 
    222 Cal. App. 4th 149
    , 159 [“‘The term “substantial evidence” means such
    relevant evidence as a reasonable mind would accept as adequate to support a conclusion;
    it is evidence which is reasonable in nature, credible, and of solid value’”].)
    Clean Energy also challenges finding No. 16, which states, “SoCalGas’s
    access to customer information does not provide it with unfair competitive advantage in
    21
    the provision of compressed gas services because the customer information does not
    provide information on who would desire compressed gas services.” Clean Energy
    contends “uncontroverted evidence establishes that every potential [compressed natural
    gas] infrastructure customer must and will contact SoCalGas: [I]t is that
    customer-initiated contact and the detailed, targeted, customer information that results
    about who is shopping for [compressed natural gas] infrastructure services, what their
    specific needs are, and what their history is, that confers an unfair advantage.” (Original
    italics.) According to Clean Energy, this “uncontroverted evidence” prevents the PUC
    from finding SoCalGas’s access to customer information does not provide it with an
    unfair competitive advantage. We disagree.
    Clean Energy’s challenge to finding No. 16 misconstrues the nature of that
    finding. The finding simply states SoCalGas’s access to information about its ratepayers
    does not provide SoCalGas with an unfair advantage because that information does not
    reveal which customers are considering compressed gas services. Clean Energy does not
    challenge that specific finding or the evidentiary support for it. Instead, Clean Energy’s
    challenge focuses on different customer information — the information SoCalGas
    receives when a customer contacts SoCalGas as the monopoly gas supplier to inquire
    about compressed gas services and how to connect the customer’s infrastructure to
    SoCalGas’s distribution system.
    The Decisions acknowledge SoCalGas’s status as monopoly gas supplier
    makes it a logical contact for customers interested in compressed gas services and
    therefore may provide SoCalGas an unfair competitive advantage. As explained above,
    however, the PUC found they eliminated this unfair advantage by imposing numerous
    reporting, cost tracking, and marketing restrictions on SoCalGas, and Clean Energy does
    not challenge that finding or the evidentiary support for it. Accordingly, we reject Clean
    Energy’s challenge to finding No. 16.
    22
    C.     The PUC Made Adequate Findings on the Affiliate Option
    Clean Energy contends the PUC failed to proceed in the manner required
    by law and abused its discretion by rejecting Clean Energy’s Affiliate Option without
    “includ[ing] in its findings and conclusions the basis for its rejection of [the Affiliate
    Option as an] alternative[] to the proposal under consideration.” The Decisions,
    however, include adequate findings and conclusions explaining the PUC’s basis for
    rejecting the Affiliate Option.
    Nothing in the Public Utilities Code specifically required the PUC to make
    findings on alternatives to the Compression Services Tariff. Instead, section 1705
    required the Decisions to “contain, separately stated, findings of fact and conclusions of
    law by the [PUC] on all issues material to the . . . [D]ecision[s].” (§ 1705, italics added.)
    It is within the PUC’s discretion to determine what factors are material to its decision
    based on the issues before it. Section 1705 merely “requires [the PUC] to state what
    those factors are and to make findings on the material issues that ensue therefrom.”
    (California Motor Transport Co. v. Public Utilities Com. (1963) 
    59 Cal. 2d 270
    , 275
    (California Motor Transport).) Indeed, the PUC’s findings and conclusions are sufficient
    if they provide “a statement which will allow us a meaningful opportunity to ascertain the
    principles and facts relied upon by the [PUC] in reaching its decision.” (Toward Utility
    Rate 
    Normalization, supra
    , 22 Cal.3d at p. 540.) In other words, “a complete summary
    of all proceedings and evidence leading to the decision” is not required. (Ibid.)
    Here, the Decisions satisfy these standards. They repeatedly explain the
    PUC considered and rejected Clean Energy’s Affiliate Option because the numerous
    restrictions the Compression Services Tariff imposed already prevented SoCalGas from
    unfairly competing with nonutility enterprises in the compression services marketplace.
    For example, the Decisions found, “we considered the [A]ffiliate [O]ption and
    determined that creation of an affiliate was unnecessary for ensuring a fair competitive
    marketplace. . . . [¶] . . . [¶] With the[] adopted ratepayer protections and rules to
    23
    ensure fair competition, it is not necessary for us to require SoCalGas to offer the
    compression service[s] through an affiliate as the CST is consistent with the law and the
    public interest.” Moreover, as explained above, the PUC also found the decision in
    Affiliate Transaction Rules on which Clean Energy based the Affiliate Option did not
    apply because the Compression Services Tariff authorizes a version of a service
    SoCalGas already provides, or at a minimum a new service offered on a tariffed basis.
    Implicitly acknowledging the Public Utilities Code does not address project
    alternatives, Clean Energy relies on three Supreme Court cases to argue the PUC’s
    Decisions not only had to explain the basis for rejecting the Affiliate Option but also
    include findings on the relative merits of that option in comparison to the Compression
    Services Tariff. (See United States Steel Corp. v. Public Utilities Com. (1981) 
    29 Cal. 3d 603
    (U.S. Steel); California Manufacturers Assn. v. Public Utilities Com. (1979)
    
    24 Cal. 3d 251
    (California Manufacturers); City of Los 
    Angeles, supra
    , 
    15 Cal. 3d 680
    .)
    We do not find that contention persuasive because none of the cases Clean Energy cited
    imposed such a requirement. 8
    8       In contrast to the Public Utilities Act (§ 201 et seq.), the California
    Environmental Quality Act (Pub. Resources Code, § 21000 et seq.) and its implementing
    regulations (Cal. Code Regs., tit. 14, § 15000 et seq.) include detailed provisions
    requiring environmental impact reports to identify and analyze the comparative merits of
    alternatives to the proposed project (Pub. Resources Code, §§ 21002.1, subd. (a); 21100,
    subd. (b); Cal. Code Regs., tit. 14, § 15126.6(a) & (d)), and the public agency to make
    specific findings rejecting the project alternatives it did not adopt (Pub. Resources Code,
    § 21081, subd. (a)(3); Cal Code Regs., tit. 14, § 15091(a)(3) & (c)). Interestingly, CEQA
    and its regulations do not require a public agency to make findings rejecting alternatives
    if the environmental impacts of the approved project will be avoided or substantially
    lessened through mitigation measures. (Pub. Resources Code, § 21081, subd. (a); Cal
    Code Regs., tit. 14, § 15091(a); Rio Vista Farm Bureau Center v. County of Solano
    (1992) 
    5 Cal. App. 4th 351
    , 379 [“CEQA does not require the responsible agency to
    consider the feasibility of environmentally superior project alternatives identified in the
    EIR if described mitigation measures will reduce environmental impacts to acceptable
    levels”]; Laurel Hill Homeowners Assn. v. City Council (1978) 
    83 Cal. App. 3d 515
    , 521.)
    24
    In U.S. Steel, the PUC approved an exemption for some motor carriers from
    minimum rates it established for the transportation of certain commodities. (U.S. 
    Steel, supra
    , 29 Cal.3d at p. 607.) The Supreme Court annulled that decision because the PUC
    refused to consider the economic effect of authorizing different rates for similar services
    over similar routes. (Id. at pp. 608-610.) In California Manufacturers, the PUC
    approved a method for allocating a rate increase among different types of natural gas
    customers based on its finding the selected alternative provided greater conservation of
    natural gas than other proposed alternatives. (California 
    Manufacturers, supra
    ,
    24 Cal.3d at pp. 254-255.) The Supreme Court annulled that decision because neither the
    PUC’s findings nor the evidence showed the selected method would conserve more
    natural gas than the other proposed methods. (Id. at pp. 259-260.) Finally, in City of
    Los Angeles, the PUC approved a utility’s rate increase, but declined to consider annual
    adjustments to that rate because it interpreted the governing statutes as prohibiting a rate
    adjustment without a hearing. (City of Los 
    Angeles, supra
    , 15 Cal.3d at p. 684.) The
    Supreme Court annulled the decision because the statutes allowed the PUC to impose
    annual adjustments without a hearing and therefore the PUC should have considered
    whether to impose the proposed adjustments. (Id. at pp. 694-695, 704.)
    In each case, the Supreme Court annulled the PUC’s decision because the
    PUC either erroneously refused to consider an alternative or relevant factor in reaching
    its decision (U.S. 
    Steel, supra
    , 29 Cal.3d at pp. 609-610; City of Los 
    Angeles, supra
    ,
    15 Cal.3d at p. 704) or based its decision on a factor for which there were no findings or
    evidence (California 
    Manufacturers, supra
    , 24 Cal.3d at pp. 259-260). California
    Manufacturers is the only case that faulted the PUC for failing to make findings on the
    relative merits of proposed alternatives, but it did so because the PUC expressly based its
    decision on the selected alternative conserving more natural gas than the other
    alternatives. (Ibid.) Accordingly, these cases may be construed to require the PUC to
    consider and address project alternatives that come to light during the administrative
    25
    process, but none of them require the PUC to make findings comparing the relative
    merits of project alternatives in every case.
    The U.S. Steel and City of Los Angeles decisions do not apply here because
    the PUC did not refuse to consider the Affiliate Option.9 Similarly, California
    Manufacturers does not apply because the PUC did not reject the Affiliate Option based
    on a comparison of whether the Affiliate Option or the Compression Services Tariff
    would do a better job of preventing unfair competition. Here, the PUC considered the
    Affiliate Option and found it was superfluous because the restrictions the PUC imposed
    on SoCalGas already prevented it from unfairly competing. Indeed, the PUC faced the
    Affiliate Option head on and determined the public interest did not require SoCalGas to
    provide the proposed services through an unregulated affiliate because the restrictions the
    PUC imposed already prevented SoCalGas from unfairly competing. Nothing in U.S.
    Steel, City of Los Angeles, or California Manufacturing required the PUC to make
    findings on the relative merits of an alternative proposed to eliminate possible
    competitive advantages the PUC found it already had eliminated through other
    restrictions.
    Had the PUC rejected the Affiliate Option because it found the restrictions
    were more effective in preventing unfair competition, the California Manufacturers
    decision would have required the PUC to make findings on the relative merits and
    abilities of the two alternatives to prevent unfair competition. In that scenario, the
    grounds for rejecting the Affiliate Option would make the relative merits a material issue
    9       Northern California Power Agency v. Public Utilities Com. (1971) 
    5 Cal. 3d 370
    , and City & County of San Francisco v. Public Utilities Com. (1971) 
    6 Cal. 3d 119
    ,
    also do not apply for the same reason. Clean Energy cites both cases without discussing
    the facts of either one. In both cases, the Supreme Court annulled PUC decisions because
    the PUC refused to consider specific alternatives or factors in reaching its decision.
    (Northern California Power Agency, at pp. 376, 379; City & County of San Francisco, at
    pp. 126, 130.) These cases are distinguishable because here the PUC considered Clean
    Energy’s proposed alternative.
    26
    requiring findings under section 1705. The PUC, however, rejected the Affiliate Option
    as unnecessary because the restrictions imposed on SoCalGas already prevented unfair
    competition. That determination made the effectiveness of those restrictions the material
    issue, and the PUC’s findings properly addressed that issue. As explained above, it is
    within the PUC’s discretion to determine what factors are material to its decision
    (California Motor 
    Transport, supra
    , 59 Cal.2d at p. 275), and Clean Energy failed to
    show the PUC abused its discretion. It may be preferable from a policy perspective to
    require the PUC to compare alternatives, but that policy determination is not for us to
    decide. Neither the Public Utilities Code nor the applicable case law required the PUC to
    make findings on the relative merits of the Affiliate Option based on the facts presented.
    Moreover, we are mindful the PUC also found the Affiliate Transaction
    Rules decision does not apply to SoCalGas’s proposal to provide compression services
    under the Compression Services Tariff because those services are merely a version of a
    service SoCalGas already provides, or at a minimum a new service offered on a tariffed
    basis. Clean Energy essentially claims the PUC must make findings on the relative
    merits of an alternative no longer relevant to the proposal at issue and unnecessary to
    prevent the harm — unfair competition — the alternative was purportedly intended to
    prevent. Clean Energy cites no authority imposing such a duty.
    D.     The Record Supports the PUC’s Findings the Compression Services Tariff Will
    Benefit the Environment
    To support its approval of the Compression Services Tariff, the PUC found
    the tariff will lead to an incremental expansion of natural gas use in the Los Angeles area
    and thereby reduce air pollution and greenhouse gas emissions because compressed
    natural gas vehicles produce fewer emissions than traditional petroleum based fuels.
    Clean Energy does not dispute the PUC’s conclusion increased natural gas use would
    produce environmental benefits. Instead, Clean Energy challenges the sufficiency of the
    27
    evidence to support the PUC’s finding the Compression Services Tariff will lead to an
    increase in natural gas use. Substantial evidence supports the PUC’s finding.
    The evidence shows that (1) the compressed natural gas market in
    SoCalGas’s service area is highly concentrated with Clean Energy and Integrys
    Transportation Fuels serving 82 percent of the market by volume; (2) growth in the use of
    natural gas as a transportation fuel is well behind the state’s projections, having grown
    only 4.7 percent per year between 2006 and 2010 while the state projected conservative
    annual growth at 6.5 percent and moderate growth at 12.9 percent; (3) natural gas
    accounts for less than one percent of all transportation fuel in California; (4) the state has
    established aggressive goals for reducing greenhouse gas emissions (Health & Safety
    Code, § 38500 et seq.); (5) the Compression Services Tariff offers a new form of
    compression services not currently available in the market that is priced in a transparent
    manner because it is offered on a tariffed basis; and (6) 77 percent of the participants in a
    survey of existing customers using compression services and those who have expressed
    an interest in those services reported the Compression Services Tariff would make them
    more likely to undertake a new compressed natural gas project or enhance an existing
    project.
    At a minimum, the foregoing evidence supports the reasonable inference
    that allowing SoCalGas to offer the services described in the Compression Services Tariff
    will increase competition and expand customer choice in the compressed natural gas
    market, and thereby increase growth in the demand for compression services. (Meyers v.
    Board of Administration, etc. (2014) 
    224 Cal. App. 4th 250
    , 256 [under the substantial
    evidence standard, we must resolve all conflicts and indulge all reasonable inferences in
    favor of the underlying decision]; County of Kern v. Jadwin (2011) 
    197 Cal. App. 4th 65
    ,
    72-73 [substantial evidence includes not only direct evidence, but also circumstantial or
    indirect evidence and all reasonable inferences flowing therefrom]; Western Digital
    Corp. v. Superior Court (1998) 
    60 Cal. App. 4th 1471
    , 1487.)
    28
    Clean Energy contends nothing in the record supports the conclusion the
    customers SoCalGas will serve under the Compression Services Tariff are new
    compressed natural gas customers who otherwise would not have entered the market or
    increased their demand for compressed natural gas. According to Clean Energy, the PUC
    was required to make findings demonstrating the Compression Services Tariff will attract
    new customers rather than customers taken from other market participants. We disagree.
    As explained above, the PUC was not required to make the sort of detailed findings Clean
    Energy demands. Instead, it merely had to provide a statement that allows an appellate
    court to ascertain the principles and facts on which it relied. (Toward Utility Rate
    
    Normalization, supra
    , 22 Cal.3d at p. 540.) The PUC’s findings regarding the
    compressed natural gas market and the impact of the Compression Services Tariff on that
    market meet that standard.
    Finally, Clean Energy contends the PUC should not have used the volume
    of compressed natural gas sold to measure its market share. According to Clean Energy,
    its market share is irrelevant and should have been measured by the number of refueling
    stations it owns, not the volume of gas put through to stations it owns or services. We
    again disagree. The PUC’s goal in adopting the Compression Services Tariff is to
    increase the volume of compressed natural gas used and thereby reduce the use of
    traditional petroleum fuels. Although the number of refueling stations impacts the
    volume used, there was nothing improper about the PUC relying on the volume of gas to
    measure market share. Moreover, market share is a relevant consideration because it
    shows the concentration of the market and whether it will benefit from additional
    competition. (See California Motor 
    Transport, supra
    , 59 Cal.2d at p. 275 [PUC vested
    with discretion to determine factors relevant to its ultimate findings].)
    29
    III
    DISPOSITION
    The Decisions are affirmed. The PUC and SoCalGas shall recover their
    costs.
    ARONSON, J.
    WE CONCUR:
    O’LEARY, P. J.
    FYBEL, J.
    30
    Filed 6/27/14
    CERTIFIED FOR PUBLICATION
    IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA
    FOURTH APPELLATE DISTRICT
    DIVISION THREE
    CLEAN ENERGY FUELS CORP.,
    Petitioner,                                        G048820
    v.                                             (Super. Ct. No. CPUC Nos.
    D.12-12-037 & D.13-10-042)
    CALIFORNIA PUBLIC UTILITIES
    COMMISSION,                                            ORDER MODIFYING OPINION AND
    CERTIFYING OPINION FOR
    Respondent,                                        PUBLICATION; NO CHANGE IN
    JUDGMENT
    SOUTHERN CALIFORNIA GAS
    COMPANY,
    Real Party in Interest.
    The opinion filed on May 29, 2014, is modified as follows:
    1.        On page 18, in the first full paragraph, at the end of the third full sentence,
    remove the period and the first word of the next sentence, “Moreover,” and replace them
    with a comma and the word “and” so it reads “Clean Energy does not challenge the
    PUC’s findings that the Phase II LEV Guidelines decision did not apply to the
    Compression Services Tariff, and we must defer to the PUC’s interpretation of its own
    decision because the interpretation is reasonable and consistent with the decision’s
    rationale. (Southern Cal. 
    Edison, supra
    , 85 Cal.App.4th at p. 1096.)”
    31
    2.     On page 19, in the last sentence of the only full paragraph on the page, “we
    must defer to SoCalGas’s interpretation” should be changed to “we must defer to the
    PUC’s interpretation.”
    3.     On page 24, in the second line, “CST” should be replaced with
    “C[ompression] S[ervices] T[ariff].”
    This modification does not change the judgment.
    The California Public Utilities Commission has requested that our opinion, filed
    on May 29, 2014, be certified for publication. It appears that our opinion meets the
    standards set forth in California Rules of Court, rule 8.1105(c). The request is
    GRANTED.
    ARONSON, J.
    WE CONCUR:
    O’LEARY, P. J.
    FYBEL, J.
    32