Bellermann v. Fitchburg Gas & Electric Co. , 470 Mass. 43 ( 2014 )


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    SJC-11492
    MARCIA D. BELLERMANN & others1 vs. FITCHBURG GAS AND ELECTRIC
    LIGHT COMPANY.
    Worcester.     March 4, 2014. - October 30, 2014.
    Present:   Spina, Cordy, Botsford, Gants, Duffly, & Lenk, JJ.
    Electric Company. Public Utilities, Electric company.
    Practice, Civil, Class action, Consumer protection case,
    Judicial discretion. Consumer Protection Act, Class
    action, Unfair or deceptive act. Administrative Law,
    Preclusive effect of decision. Collateral Estoppel.
    Estoppel.
    Civil action commenced in the Superior Court Department on
    January 7, 2009.
    Motions for class certification and for summary judgment
    were heard by Douglas H. Wilkins, J., and a decision denying
    class certification was reported by him to the Appeals Court.
    A proceeding for interlocutory review was heard in the
    Appeals court by Cynthia J. Cohen, J., and after consolidation
    of the appeals, the Supreme Judicial Court granted an
    application for direct appellate review.
    1
    Paul O'Connell, doing business as Lunenburg Exxon, also
    known as Lunenburg Gulf; Dee Anne Aylott; Gary H. Asher; Daisy
    Bacener; Beverly Christenson; Catherine J. Clark; Carl E.
    Fandreyer; Jacquelyn Poisson; Karen Thibeault; Genghis, Inc.;
    and Evans on the Common, on behalf of themselves and all others
    similarly situated.
    2
    Barry M. Altman & C. Deborah Phillips (James L. O'Connor,
    Jr., Edwin H. Howard, & James M. Galliher with them) for the
    plaintiffs.
    Gavin J. Rooney, of New Jersey (Natalie J. Kraner, of New
    Jersey, with him) for the defendant.
    Robin L. Main for Massachusetts Electric Company & others,
    amici curiae, submitted a brief.
    DUFFLY, J.    This case arises out of a major ice storm that
    struck areas of the northeastern United States in December, 2008
    (Winter Storm 2008).     The defendant, Fitchburg Gas and Electric
    Light Company (FG&E), is a public utility that provides electric
    service to customers in the municipalities of Fitchburg,
    Lunenburg, Townsend, and Ashby, which were among those affected
    by the storm.     FG&E is one of the utilities owned by Unitil
    Corporation (Unitil).     The plaintiffs are twelve residential and
    business customers of FG&E who lost power during Winter Storm
    2008.    They filed a suit in the Superior Court on behalf of
    themselves and those similarly situated, asserting claims of
    gross negligence and violation of G. L. c. 93A.     Pursuant to
    G. L. c. 93A, §§ 9 (2) and 11,2 and Mass. R. Civ. P. 23, as
    2
    General Laws c. 93A, § 9 (2), provides that "[a]ny persons
    entitled to bring [an] action [under § 9 (1) for an unfair or
    deceptive act or practice] may, if the use or employment of the
    unfair or deceptive act or practice has caused similar injury to
    numerous other persons similarly situated and if the court finds
    in a preliminary hearing that he adequately and fairly
    represents such other persons, bring the action on behalf of
    himself and such other similarly injured and situated persons."
    General Laws c. 93A, § 11, contains a similar provision
    applicable to business plaintiffs.
    3
    amended, 
    452 Mass. 1401
    (2008) (rule 23),3 the plaintiffs moved
    to certify a class consisting of FG&E's residential and business
    customers; their dependents, tenants, and employees; and other
    users of electricity who sustained damages as a result of FG&E's
    inadequate preparation for and response to Winter Storm 2008.
    The parties also filed cross-motions for partial summary
    judgment on the plaintiffs' G. L. c. 93A claims.   In their
    motion for partial summary judgment, the plaintiffs sought issue
    preclusive effect of certain findings made by the Department of
    Public Utilities (DPU) in two prior administrative adjudications
    related to FG&E's conduct during Winter Storm 2008.   See D.P.U.
    11-01 (2011); D.P.U. 09-01-A (2009).
    After a combined hearing on these motions, the judge issued
    3
    Mass. R. Civ. P. 23, as amended, 
    452 Mass. 1401
    (2008),
    provides, in relevant part:
    "(a) Prerequisites to Class Action. One or more
    members of a class may sue or be sued as representative
    parties on behalf of all only if (1) the class is so
    numerous that joinder of all members is impracticable,
    (2) there are questions of law or fact common to the class,
    (3) the claims or defenses of the representative parties
    are typical of the claims or defenses of the class, and
    (4) the representative parties will fairly and adequately
    protect the interests of the class.
    "(b) Class Actions Maintainable. An action may be
    maintained as a class action if the prerequisites of
    subdivision (a) are satisfied, and the court finds that the
    questions of law or fact common to the members of the class
    predominate over any questions affecting only individual
    members, and that a class action is superior to other
    available methods for the fair and efficient adjudication
    of the controversy."
    4
    two decisions.     He denied the plaintiffs' motion for class
    certification, and, while determining that the application of
    offensive issue preclusion was appropriate, he also denied the
    motions for summary judgment as to all but two claims that are
    not at issue here.     The judge then reported his decision denying
    class certification to the Appeals Court pursuant to Mass. R.
    Civ. P. 64 (a), as amended, 
    423 Mass. 1403
    (1996), and FG&E
    sought interlocutory review, pursuant to G. L. c. 231, § 118, of
    the judge's decision as to issue preclusion.     A single justice
    of the Appeals Court allowed the petition for interlocutory
    review, and the two appeals were consolidated in the Appeals
    Court.    We allowed the plaintiffs' application for direct
    appellate review.     We conclude that the judge did not abuse his
    discretion in declining to certify a class and in applying issue
    preclusion to facts found after evidentiary hearings at the DPU.4
    Background.    We summarize the facts set forth in the
    judge's decisions, supplemented by other undisputed facts in the
    record.
    FG&E receives all of its electric power from four
    transmission supply lines owned by National Grid USA Service
    Company, Inc. (National Grid).     Each of these lines ties into a
    4
    We acknowledge the amicus brief submitted by Massachusetts
    Electric Company, doing business as National Grid; Nantucket
    Electric Company, doing business as National Grid; and Northeast
    Utilities.
    5
    substation in southwest Fitchburg.   From this substation, FG&E's
    network consists of sixty miles of subtransmission lines that
    feed into 680 miles of distribution lines.   At the time of
    Winter Storm 2008, FG&E had approximately 28,500 customers.
    1.   Winter Storm 2008.   Winter Storm 2008 was an ice storm
    that struck the northeastern United States, including FG&E's
    service territory, on December 11 and 12, 2008.   As a result of
    that storm, ice accumulated on utility poles and tree limbs in
    FG&E's territory, causing limbs and whole trees to fall onto
    FG&E utility poles, electrical lines, and other electrical
    infrastructure.   The storm also damaged the National Grid
    transmission lines that supply FG&E's system with power.     In
    total, Winter Storm 2008 resulted in power outages for over one
    million customers in New England, New York, and Pennsylvania,
    including one hundred per cent of FG&E's customers.
    2.   FG&E's preparedness and restoration efforts.    In 1992,
    sixteen years before Winter Storm 2008, the DPU had directed
    FG&E and several other utilities to "implement or to maintain a
    system for reviewing emergency plans on an annual basis," and
    had advised them that "it would be beneficial for each company
    to examine the other [c]ompanies' plans in order to consider the
    incorporation of useful changes."    D.P.U. 91-228, at 4 (1992).
    In 2002, the DPU further advised FG&E to "consider the use of
    extreme weather condition forecasts with outages or
    6
    contingencies simulated in the power flow model for plan[n]ing
    and designing [transmission and distribution] facilities."
    In 2006 and 2007, FG&E sent newsletters to its customers
    extolling its ability to respond to outages and asserting that
    "safety and service reliability are our first priorities."     FG&E
    also filed annual emergency restoration plans (ERPs) with the
    DPU; these plans set forth an overview of FG&E's service
    restoration processes and priorities, defined organizational and
    functional responsibilities, identified communications
    protocols, and described the framework required to restore power
    in the event of a major storm or other emergency.    Other severe
    ice storms occurred in Unitil's service area, but contrary to
    the recommendation in the DPU's 1992 order, FG&E did not study
    the storm preparation and response practices of other
    Massachusetts utilities.    FG&E's ERP in effect at the time of
    Winter Storm 2008 did not address a storm as severe and
    widespread as that storm.
    At the time of Winter Storm 2008, FG&E also had in effect a
    vegetation management policy providing tree-trimming cycles for
    each of the circuits in its system.    By the end of 2006,
    however, FG&E's vegetation management program had become
    underfunded, and FG&E had fallen behind on its tree-trimming
    schedule.   Rather than increasing its vegetation management
    budget, FG&E responded by adjusting downward its clearance
    7
    standards and vegetation management cycles.
    After Winter Storm 2008 struck, FG&E began restoring power
    to its customers on a rolling basis.   The process started early
    on December 12, once National Grid had repaired its transmission
    supply lines, when FG&E restored power to about five hundred
    customers in downtown Fitchburg whose underground network system
    was largely insulated from the weather.    To complete full
    restoration, however, FG&E had to repair 244 utility poles,
    192,729 feet of wire conductor, and 170 transformers.    FG&E did
    not employ a sufficient number of its own restoration crews to
    respond to Winter Storm 2008, and had only limited success in
    obtaining additional crews from other utilities.    By December
    20, more than 4,000 FG&E customers remained without power, and
    at the Commonwealth's request, National Grid stepped in to
    complete the necessary restoration work.    The last customers did
    not have power until December 25.
    The plaintiffs experienced outages beginning on either
    December 10, 11, or 12, and persisting for periods ranging from
    four to twelve days.   Although all were attributable to the
    storm, the immediate reasons for their loss of power differed.
    For example, some plaintiffs lost power due to damage to FG&E's
    subtransmission lines, whereas others lost power when trees in
    their yards, for which FG&E does not bear responsibility, fell
    on their individual service lines.   The plaintiffs' affidavits
    8
    set forth various damages caused by the outages, including lost
    income and business profits, burst pipes, dead plants and pet
    fish, spoiled food, and other expenses incurred as a consequence
    of and in response to the outages.
    3.    FG&E's public communications.   FG&E's ERP at the time
    of Winter Storm 2008 provided that one of its primary
    responsibilities during an emergency was "[t]o keep the public
    informed of the status of the restoration in a timely manner
    through direct contact with town and city officials and the news
    media."   According to FG&E, its principal method for
    communicating with the public during Winter Storm 2008 was
    through public service announcements (PSAs).   FG&E issued
    between one and five PSAs daily from December 11 through
    December 24.
    As of the morning of December 11, FG&E knew that the
    weather forecast was for "anywhere from 1/4 inch to more than 1
    inch of ice," that "the current thinking is that FG&E is in the
    worst position" of the Unitil subsidiaries, and that "1/4 inch
    of ice and a little wind would be problematic, so having a
    forecast of over 1 inch would likely result in an extended
    restoration period that could easily exceed one week."
    Nevertheless, FG&E issued the following PSA later that day:
    "Most electrical outages are expected to be for relatively short
    periods of time, only.   However, severe weather conditions can
    9
    create substantial damage to the electrical system, and
    restoration can take an extended period of time."
    Within the first few hours of Winter Storm 2008, FG&E had
    information that its system had suffered extensive damage that
    affected more than just its subtransmission and distribution
    facilities.   Accordingly, when it energized its subtransmission
    lines on December 14, it knew that this would not restore power
    to a large majority of its customers.   During this time, FG&E
    also learned that it would not have access to repair crews that
    it previously had believed would be available.   Nonetheless,
    from December 12 through December 15, FG&E's PSAs stated that it
    would "take days" or "several days" to restore power.     On
    December 16, FG&E's PSAs began referring to "restoration of all
    primary circuits" by the end of the week, without explaining
    that this did not mean that all customers would have their power
    restored by that time.   FG&E had information about the need for
    "extensive rebuilding of circuits," but it did not communicate
    this fact until December 19.
    FG&E's PSAs also served as the source of information for
    its customer service representatives.   From December 11 through
    December 25, FG&E's call center received 164,136 calls, of which
    only 32,327 reached a customer service representative.    Some
    customers who did speak with representatives, including two of
    the plaintiffs, received false predictions as to when they could
    10
    expect their power to be restored.     Others who attempted to call
    did not speak to representatives but were connected to automated
    recordings that provided no information about restoration times.
    4.   DPU proceedings.    On January 7, 2009, the DPU, pursuant
    to its regulatory authority under G. L. c. 164, §§ 1E and 76,
    opened an investigation into FG&E's preparation for and response
    to Winter Storm 2008.    The purpose of the investigation was to
    determine whether FG&E had satisfied its public service
    obligation to provide safe and reliable service.5    See D.P.U. 09-
    01-A, at 6-8, and authorities cited.
    The DPU began its investigation by holding two public
    hearings and requesting written comments.    The DPU accepted both
    sworn and unsworn statements, although it informed the public
    that it would not rely on unsworn statements in its decision-
    making process.   See 220 Code Mass. Regs. § 1.10(1) (2008) ("The
    [DPU] shall follow the rules of evidence observed by courts when
    practicable . . . .     All unsworn statements appearing in the
    record shall not be considered as evidence on which a decision
    5
    The order opening the investigation by the Department of
    Public Utilities (DPU) announced that it would focus on
    Fitchburg Gas and Electric Light Company's (FG&E's)
    (1) emergency restoration plan (ERP); (2) preparation for Winter
    Storm 2008 and management of restoration efforts;
    (3) cooperation with other utilities in sharing restoration
    resources; (4) procurement and allocation of out-of-State
    "mutual aid" crews; (5) communications with State and local
    public officials; (6) internal communications; (7) dissemination
    of information to the public; (8) transmission maintenance and
    outage scheduling; and (9) practices requiring improvement.
    11
    may be based").     As summarized in its final decision, the DPU
    received a total of two hundred forty-three oral comments and
    eighty written comments, describing a variety of problems
    regarding FG&E that customers experienced during the storm.        See
    D.P.U. 09-01-A, at 9-17.
    The DPU next conducted an adjudicatory proceeding pursuant
    to 220 Code Mass. Regs. §§ 1.01-1.15 (2008).     The Attorney
    General intervened in the proceeding as authorized by G. L.
    c. 12, § 11E (a).    On March 25, 2009, FG&E, represented by
    counsel, provided the DPU with prefiled testimony of various
    Unitil officials.     It also submitted a self-assessment report
    that included twenty-eight recommendations on how to improve its
    preparedness for and response to emergency events.     The DPU held
    evidentiary hearings from May 11 to May 15, at which both the
    Attorney General and FG&E presented witness testimony.     Both
    parties then filed initial briefs and reply briefs.
    The Attorney General proposed a number of remedies to
    address FG&E's alleged failures related to Winter Storm 2008.
    It urged the DPU to (1) require FG&E to adopt the twenty-eight
    improvements recommended in FG&E's self-assessment report, (2)
    fine FG&E $4.6 million, (3) deny FG&E recovery of storm-related
    costs, and (4) reduce FG&E's return on equity.
    In a 215-page decision, the DPU found "numerous and
    systematic" deficiencies in how FG&E prepared for and responded
    12
    to Winter Storm 2008.   D.P.U. 09-01-A, at xiii.   These
    deficiencies included inadequate planning and training for
    significant emergency events; inadequate preparation for Winter
    Storm 2008; unsatisfactory damage assessment after the storm;
    insufficient acquisition of external repair crews; various
    problems that prevented FG&E from restoring service in a timely
    manner; and a failure to provide the public with useful and
    accurate information, which "resulted in the inability of
    customers to plan appropriately for an extended outage."    See
    
    id. at 47,
    60, 69, 83, 102, 121, 125.   The DPU concluded that
    each of these deficiencies constituted a violation of FG&E's
    obligation to provide safe and reliable service.   See 
    id. at 52,
    60, 72, 83-84, 102, 121, 125.   The DPU also found that FG&E had
    engaged in deficient tree-trimming practices, which likely
    contributed to outages experienced during the storm.   See 
    id. at xiii,
    160.
    To remedy these failures, the DPU ordered FG&E to undertake
    a comprehensive independent management audit at its own expense;
    to implement, with some modifications, the twenty-eight
    improvements in its self-assessment report; and to provide
    progress reports regarding the implementation of these
    improvements.   See 
    id. at 193-194,
    208-214.   While acknowledging
    that FG&E's conduct might warrant monetary penalties, the DPU
    concluded that it lacked authority to impose the requested $4.6
    13
    million fine.   See 
    id. at ix,
    185, 189.6   The DPU decided to
    defer the questions of FG&E's storm-related cost recovery and
    return on equity until its next rate-setting proceeding.     See
    
    id. at 196,
    198-199.    FG&E was notified properly of its right to
    appeal under G. L. c. 25, § 25, see 220 Code Mass. Regs. § 1.13,
    but did not file an appeal.
    The DPU addressed FG&E's cost recovery and return on equity
    in its next rate-setting decision, at which time FG&E sought to
    recover storm-related costs totaling $22,120,286.     See D.P.U.
    11-01, at 13-15.    The DPU adopted the findings in its
    investigatory decision, including those pertaining to specific
    failures by FG&E.    See 
    id. at 16,
    59, 66.7   Relying on these
    6
    Partly in response to FG&E's deficient performance during
    Winter Storm 2008, the Legislature enacted G. L. c. 164, § 1J,
    directing the DPU to establish standards for how electric
    utilities should prepare for and respond to emergency events,
    and authorizing the DPU to impose fines, totaling no more than
    $20 million, for violations of these standards. See St. 2009,
    c. 133, § 4. See also G. L. c. 164, § 85B (imposing
    requirements for utilities' emergency response plans); 220 Code
    Mass. Regs. §§ 19.01-19.06 (2010) (setting forth DPU's emergency
    performance standards). In 2012, the Legislature adopted G. L.
    c. 164, § 1K, requiring the DPU to credit any penalties levied
    back to the utility's customers. See St. 2012, c. 216, § 3.
    7
    The DPU summarized the findings of its investigatory
    decision as follows:
    "[T]he [DPU] found that [FG&E's] lack of planning and
    training for a significant storm event left it unprepared
    to respond to the magnitude of system damage that it
    experienced during Winter Storm 2008. D.P.U. 09-01-A at 47
    [(2009)]. The [DPU] determined that [FG&E's] lack of
    planning led to: (1) its inability to restore service to
    its customers in a timely manner; (2) its failure to
    14
    findings, the DPU allowed recovery of costs that FG&E could not
    have avoided given the magnitude of Winter Storm 2008, but
    denied FG&E's request with respect to $6,954,492 in costs
    incurred because of FG&E's failures leading up to and during the
    storm.   See 
    id. at 13-14.
       The DPU also reduced FG&E's return on
    equity in part to reflect its deficient performance.      See 
    id. at 14.
      FG&E again did not appeal from the DPU's decision.
    Discussion.   1.   Class certification.    With respect to both
    rule 23 and G. L. c. 93A, we review a grant or denial of class
    certification for an abuse of discretion.       See Salvas v. Wal-
    Mart Stores, Inc., 
    452 Mass. 337
    , 361 (2008); Moelis v.
    Berkshire Life Ins. Co., 
    451 Mass. 483
    , 486 (2008).      Under both
    sets of certification requirements, the plaintiffs "do not bear
    the burden of producing evidence sufficient to prove that the
    requirements [of class certification] have been met," but need
    only provide "information sufficient to enable the motion judge
    to form a reasonable judgment" that the class meets the relevant
    communicate accurate and useful information to the public;
    and (3) its failure to coordinate its restoration efforts
    with local public safety officials. [Id.] Further, the
    [DPU] identified failures in: (1) [FG&E's] pre-storm
    preparation; (2) external resource acquisition; (3) damage
    assessment; (4) communication efforts with the public,
    municipal officials, local safety officials, and life
    support customers; and (5) adherence to its tree trimming
    schedule. [Id.] at 60, 71-72, 83-84, 121, 125, 127-128,
    135, 158-159."
    D.P.U. 11-01, at 16 (2011).
    15
    requirements.8   Weld v. Glaxo Wellcome Inc., 
    434 Mass. 81
    , 87
    (2001).   See Aspinall v. Philip Morris Cos., 
    442 Mass. 381
    , 391-
    392 (2004); Kwaak v. Pfizer, Inc., 
    71 Mass. App. Ct. 293
    , 297
    (2008).   General Laws c. 93A, however, affords a judge less
    discretion to deny class certification than does rule 23.    See
    Salvas v. Wal-Mart Stores, 
    Inc., supra
    at 370 n.66, citing
    Aspinall v. Philip Morris 
    Cos., supra
    .
    To support class certification under rule 23, plaintiffs
    must satisfy the four elements of rule 23 (a) and the two
    additional elements of rule 23 (b).    Rule 23 (a) requires the
    plaintiffs to show that "(1) the class is sufficiently numerous
    to make joinder of all parties impracticable, (2) there are
    common questions of law and fact, (3) the claim of the named
    plaintiff representative is typical of the claims of the class,
    and (4) the named plaintiff will fairly and adequately represent
    the interests of the class."    Weld v. Glaxo Wellcome 
    Inc., supra
    at 86.    In addition, rule 23 (b) requires them to show "that
    common questions of law and fact predominate over individualized
    8
    The source of such information depends on the stage of the
    proceeding at which the plaintiffs seek class certification.
    Early in the proceedings, plaintiffs may rely on the allegations
    in their complaint. See Baldassari v. Public Fin. Trust, 
    369 Mass. 33
    , 39-40 (1975). Where, as here, the parties have
    undertaken discovery and proceeded to the summary judgment
    stage, the information should rest on the more developed record.
    See, e.g., Weld v. Glaxo Wellcome Inc., 
    434 Mass. 81
    , 85-86
    (2001) (motion judge properly considered "the pleadings,
    affidavits, briefs, and the earlier memorandum on summary
    judgment").
    16
    questions, and that the class action is superior to other
    available methods for fair and efficient adjudication of the
    controversy."   Weld v. Glaxo Wellcome 
    Inc., supra
    .
    Plaintiffs may bring a class action under G. L. c. 93A if
    they can show that they may seek relief for an unfair or
    deceptive act or practice under G. L. c. 93A, §§ 9 (2) or 11,
    that the act or practice "caused similar injury to numerous
    other persons similarly situated," and that they would
    "adequately and fairly represent[] such other persons."    G. L.
    c. 93A, §§ 9 (2), 11.   Where appropriate, "the public policy of
    the Commonwealth strongly favors G. L. c. 93A class actions."
    Feeney v. Dell Inc., 
    454 Mass. 192
    , 200 (2009).   In considering
    certification under G. L. c. 93A, a judge must bear in mind the
    "'pressing need for an effective private remedy' . . . and that
    'traditional technicalities are not to be read into the statute
    in such a way as to impede the accomplishment of substantial
    justice.'"    Aspinall v. Philip Morris 
    Cos., 442 Mass. at 391
    -
    392, quoting Fletcher v. Cape Cod Gas Co., 
    394 Mass. 595
    , 605-
    606 (1985).
    Although the requirements of rule 23 (a) provide a "useful
    framework" for considering class certification under G. L.
    c. 93A, the similarity requirements of the rule do not equate
    with the requirement of G. L. c. 93A that the plaintiffs be
    "similarly situated" and have suffered a "similar injury" as
    17
    members of the class they seek to represent.     See Aspinall v.
    Philip Morris 
    Cos., 442 Mass. at 391
    , quoting Fletcher v. Cape
    Cod Gas 
    Co., 394 Mass. at 605
    .    The class action provisions of
    G. L. c. 93A also have "a more mandatory tone" than does rule 23
    in that they omit the predominance and superiority elements of
    rule 23 (b), see Fletcher v. Cape Cod Gas Co., supra at 605,
    quoting Baldassari v. Public Fin. Trust, 
    369 Mass. 33
    , 40
    (1975), but a judge retains some discretion to consider these
    factors in determining whether putative class members are
    "similarly situated" and have suffered a "similar injury."         See
    Moelis v. Berkshire Life Ins. 
    Co., 451 Mass. at 489-490
    ;
    Fletcher v. Cape Cod Gas Co., supra at 605-606.
    a.    Chapter 93A.   The Superior Court judge determined that
    the individual plaintiffs had proffered sufficient information
    to show unfair and deceptive conduct by FG&E against all its
    customers, but denied their motion for class certification based
    on his conclusion that they had not shown that such conduct
    caused "similar injury" to the putative class members.       The
    judge did not abuse his discretion.
    To pursue a class action under G. L. c. 93A, plaintiffs
    must show that the putative class members suffered "similar,"
    although not necessarily identical, injuries as a result of the
    defendant's unfair or deceptive conduct.9    G. L. c. 93A,
    9
    Business plaintiffs under G. L. c. 93A, § 11, must have
    18
    §§ 9 (2), 11.   See Salvas v. Wal-Mart Stores, 
    Inc., 452 Mass. at 364
    , quoting Spear v. H.V. Greene Co., 
    246 Mass. 259
    , 266
    (1923).    As with G. L. c. 93A claims generally, a causal
    connection must exist between the unfair or deceptive conduct
    and the injury, see Hershenow v. Enterprise Rent-A-Car Co. of
    Boston, 
    445 Mass. 790
    , 797-800 (2006), and the injury must be a
    "separate, identifiable harm" that is "distinct" from the unfair
    or deceptive conduct itself.    Tyler v. Michaels Stores, Inc.,
    
    464 Mass. 492
    , 503 (2013).   General Laws c. 93A does not permit
    class certification for the purpose of addressing limited common
    issues short of class-wide liability.    See Fletcher v. Cape Cod
    Gas 
    Co., 394 Mass. at 602
    .   Accordingly, plaintiffs must show
    that they can establish causation of such similar injury on a
    class-wide basis.   See Aspinall v. Philip Morris 
    Cos., 442 Mass. at 397
    n.19; Fletcher v. Cape Cod Gas Co., supra at 603-604.
    The plaintiffs concede that Winter Storm 2008 would have
    caused widespread power outages without regard to any failures
    by FG&E, and they do not seek to certify a class on the basis of
    such loss of power.   They press two other theories of injury
    instead:   (1) prolonged power outages caused by FG&E's failure
    to restore power more expeditiously, and (2) an inability to
    suffered a loss of "money or property." Those seeking relief
    under G. L. c. 93A, § 9, by contrast, may recover for both
    economic and personal losses. See Klairmont v. Gainsboro
    Restaurant, Inc., 
    465 Mass. 165
    , 175 (2013), and cases cited.
    19
    plan for the widespread and extended outages due to FG&E's
    unfair and deceptive communications system.10   We address these
    theories of injury in turn and conclude that neither one
    required the judge to certify a class.
    i.   Delay in restoration of power.   The plaintiffs argue
    that regardless of the cause of any initial loss of power,
    FG&E's numerous and systemic failures in planning for and
    responding to Winter Storm 2008 injured the putative class
    members by delaying restoration.   This theory of injury requires
    the plaintiffs to prove that the class members suffered longer
    outages than they would have but for FG&E's failures.   As the
    judge concluded, this theory of similar injury fails for the
    10
    In their brief, the plaintiffs indicate a third possible
    theory of injury: that they paid for a level of emergency
    preparedness, efficient restoration, and accurate information
    that FG&E unfairly and deceptively failed to provide. Where a
    defendant's unfair or deceptive conduct causes customers to
    receive a product or service worth less than the one for which
    the customers paid, the customers may pursue a class action
    under G. L. c. 93A to recover the amount by which they overpaid.
    See Iannacchino v. Ford Motor Co., 
    451 Mass. 623
    , 630-631 (2008)
    (purchasers of motor vehicles could potentially certify class to
    recover overpayment for vehicles that unfairly or deceptively
    did not meet regulatory safety standards); Aspinall v. Philip
    Morris Cos., 
    442 Mass. 381
    , 397-399 (2004) (purchasers of light
    cigarettes could pursue class to recover difference between
    market price of cigarettes as sold and true market value of such
    cigarettes had they not been deceptively advertised). In their
    motion for class certification, however, the plaintiffs did not
    seek to recover the amount by which they purportedly overpaid,
    focusing instead on their alleged damages associated with the
    power outages. Cf. Aspinall v. Philip Morris 
    Cos., supra
    at 397
    & n.19 (distinguishing class seeking to recover for personal
    injuries caused by defendant's deception, which would not have
    supported class treatment).
    20
    same reason that the plaintiffs cannot pursue a class action
    based on the initial loss of power:    causation would have to be
    resolved "on an individual (or small group) basis."
    As reflected by the differing lengths of time that outages
    were experienced, FG&E customers lost electric power for various
    reasons, and distinct obstacles impeded restoration of their
    power.   The plaintiffs have not indicated how long outages would
    have lasted in the absence of FG&E's failures.    Their expert
    testified that he made no attempt to estimate what a reasonable
    restoration period would have been, and the plaintiffs have not
    otherwise identified a model or method for determining how long
    outages would have lasted but for FG&E's failures.
    Even granting that FG&E's alleged systemic failures may
    have had a general tendency to delay restoration efforts,
    relying on such a general tendency to prove causation with
    respect to each individual class member would involve
    impermissible speculation or generalization.    See Salvas v. Wal-
    Mart Stores, 
    Inc., 452 Mass. at 361
    , quoting Weld v. Glaxo
    Wellcome 
    Inc., 434 Mass. at 85
    .   Many customers, especially
    those who experienced shorter outages, may not have suffered
    prolonged outages due to FG&E's conduct.    If the plaintiffs were
    to prove FG&E's systemic failures, it would still remain for
    each class member to show that those failures caused a prolonged
    outage on an individual basis.    The nominal class action would
    21
    "degenerate in practice into multiple law-suits separately
    tried."   Fletcher v. Cape Cod Gas 
    Co., 394 Mass. at 604
    n.8,
    quoting Advisory Committee Notes to 1966 Revision, Fed. R. Civ.
    P. 23(b)(3), 28 U.S.C. (1982).
    The plaintiffs suggest that this inquiry would involve
    merely a question of damages.    However, if customers did not
    suffer a longer outage than otherwise would have occurred, their
    claims must fail for lack of causation.    See Hershenow v.
    Enterprise Rent-A-Car Co. of Boston, 
    Inc., 445 Mass. at 800-801
    (rejecting G. L. c. 93A claim where plaintiffs failed to
    establish that statutorily noncompliant contract terms made them
    worse off than they would have been had contract complied with
    statute); Lord v. Commercial Union Ins. Co., 
    60 Mass. App. Ct. 309
    , 317-318, 322-323 (2004) (defendant entitled to judgment on
    G. L. c. 93A claim where its unfair or deceptive act did not
    cause plaintiff's injury).   The judge did not abuse his
    discretion in denying class certification with respect to this
    theory of injury.
    ii.   Inability to plan.     The plaintiffs' second theory of
    injury does not depend on what caused either the initial loss of
    power or the length of a particular outage.    They argue that
    FG&E's communications leading up to and during Winter Storm 2008
    consisted of deceptions and omissions that failed to provide
    them with accurate and useful information regarding the expected
    22
    scope and duration of outages.   They contend that this failure
    caused all members of the putative class to suffer the similar
    injury of an inability to plan for the outages.    The plaintiffs'
    affidavits aver that had FG&E properly informed them, they would
    have prepared for the outages in various ways, including
    arranging alternate living accommodations for themselves, their
    relatives, and their pets; purchasing generators; draining water
    from pipes to keep them from bursting; obtaining firewood; and
    stocking less perishable food or storing food elsewhere.   The
    plaintiffs also allege, pointing to statements made at the DPU
    public hearings, that the other putative class members likewise
    suffered damages due to their inability to plan.   The judge did
    not abuse his discretion in denying class certification on this
    theory of injury.
    Both in the Superior Court and in this appeal, the
    plaintiffs' arguments have not been clear about whether their
    claim rests on an alleged system of actively false and
    misleading statements by FG&E, or whether it rests instead on
    FG&E's alleged violation of an affirmative duty to provide its
    customers with useful information.   These claims are distinct.
    To the extent the plaintiffs assert the former claim, we agree
    with the motion judge that, although the named plaintiffs may
    prove that FG&E made deceptive statements as to them, they
    cannot establish causation on a class-wide basis because not all
    23
    class members were exposed to the same deceptive statements and
    because the announced time frames for restoration may have been
    accurate as to many class members.   See Kwaak v. Pfizer, 
    Inc., 71 Mass. App. Ct. at 300-301
    (rejecting class certification of
    those seeking relief for deceptive advertising campaign, where
    not all class members encountered advertisements and variations
    existed in advertisements that proposed class members did
    encounter).
    To the extent the plaintiffs assert the second claim, they
    fare only slightly better.   The plaintiffs may be able to show
    that FG&E engaged in unfair or deceptive conduct with respect to
    all putative class members by violating an affirmative duty to
    provide useful information regarding the scope and duration of
    expected outages.   FG&E's ERP stated that one of its primary
    responsibilities during an emergency was "[t]o keep the public
    informed of the status of the restoration in a timely manner,"
    and the DPU concluded that FG&E's public service obligation
    encompassed a duty to provide the public with "accurate and
    useful information" during an emergency event, designed to
    enable customers to plan accordingly.   See D.P.U. 09-01-A, at
    122, 125.   Cf. 940 Code Mass. Regs. § 19.05(1) (1998) ("It is an
    unfair or deceptive act or practice for a retail seller of
    electricity to fail to disclose material information about its
    products, services, or business, where such failure has the
    24
    capacity or tendency to deceive or mislead a reasonable
    consumer, or has the effect of deceiving or misleading such a
    consumer, in any material respect"); Evans v. Lorillard Tobacco
    Co., 
    465 Mass. 411
    , 465 (2013) (suggesting that breach of
    voluntarily-assumed duty to provide information may constitute
    violation of G. L. c. 93A).   The DPU found that FG&E did not
    "provide accurate and useful information to the public regarding
    restoration times" and noted that this "failure in communicating
    the extent of damage resulted in the inability of customers to
    plan appropriately for an extended outage."   D.P.U. 09-01-A at
    xi-xii, 125.   As the plaintiffs argue, and the judge agreed for
    purposes of FG&E's motion for summary judgment, although some of
    FG&E's PSAs did predict that restoration would take "days" or
    "several days," which arguably turned out to be accurate as to
    many customers, a fact finder could determine that these
    communications were too vague and general to satisfy a duty to
    inform.   Cf. Aspinall v. Philip Morris 
    Cos., 442 Mass. at 394
    ("advertising need not be totally false in order to be deemed
    deceptive in the context of G. L. c. 93A").
    The judge was not required, however, to certify a class
    based on FG&E's alleged violation of this affirmative duty,
    especially where the plaintiffs did not proffer a method for
    proving on a class-wide basis that FG&E's failure to provide
    useful information actually interfered with the ability of the
    25
    different putative class members to plan for the outages.11
    As reflected by the variety of ways that the plaintiffs
    contend they would have responded to better information, this
    theory of injury would necessitate individualized inquiry
    regarding the counterfactual mental processes of each class
    member.   Indeed, many class members -- such as, perhaps, the
    approximately five hundred customers in downtown Fitchburg who
    lost power for only a few hours or those customers who already
    possessed power generators -- may not have planned any
    differently and therefore suffered no injury under this theory.
    Although individualized inquiries regarding affirmative defenses
    and, especially, calculation of damages do not preclude class
    certification on the question of liability, see Salvas v. Wal-
    Mart Stores, 
    Inc., 452 Mass. at 367-368
    ; Aspinall v. Philip
    11
    The plaintiffs appear to assume that causation can be
    established on a class-wide basis on the theory that FG&E
    violated an affirmative duty to provide useful information,
    asserting that only the question of damages would require
    individualized inquiry. The plaintiffs do not argue, and we
    therefore do not decide, whether, if the plaintiffs were to
    establish that FG&E violated an affirmative duty to warn, such
    proof, as in other contexts, would warrant a presumption that
    the warning would have been received and heeded. See, e.g.,
    Evans v. Lorillard Tobacco Co., 
    465 Mass. 411
    , 442 (2013);
    Harlow v. Chin, 
    405 Mass. 697
    , 702-703 (1989). Even assuming
    that FG&E would bear the burden of showing that any failure to
    provide useful information did not impede the ability of
    particular class members to plan for the outages, the judge
    still had discretion to deny class certification. See Moelis v.
    Berkshire Life Ins. Co., 
    451 Mass. 483
    , 490-491 (2008) (judge
    could deny class certification where affirmative defenses would
    require highly fact-specific, individualized inquiry).
    26
    Morris 
    Cos., 442 Mass. at 402
    , a judge retains discretion to
    deny certification based on such considerations.    See Moelis v.
    Berkshire Life Ins. 
    Co., 451 Mass. at 490
    ; Fletcher v. Cape Cod
    Gas 
    Co., 394 Mass. at 603-604
    , 606-607.    Of course, the judge
    remains free to alter his decision as the litigation proceeds.
    See Moelis v. Berkshire Life Ins. Co., supra at 491-492;
    Aspinall v. Philip Morris 
    Cos., supra
    at 398 n.22, quoting
    School Comm. of Brockton v. Massachusetts Comm'n Against
    Discrimination, 
    423 Mass. 7
    , 14 n.12 (1996) ("decision as to
    class certification is not immutable").
    iii.   Alternative classes and subclasses.     The plaintiffs
    propose three alternative classes and subclasses that they
    contend the judge should have certified:   (1) a subclass of
    approximately 17,000 FG&E customers who lost power for four days
    or more, (2) a class seeking only injunctive or declaratory
    relief, and (3) a subclass of approximately 4,000 customers who
    received estimated bills for December, 2008, that made no
    adjustment for the loss of power during that period.    Where a
    natural alternative class or set of subclasses would address a
    judge's concerns about certifying a class as initially proposed,
    the judge should redefine the original class or certify
    subclasses as appropriate.   See Kwaak v. Pfizer, Inc., 71 Mass.
    App. Ct. at 302 n.8, quoting Richardson v. Byrd, 
    709 F.2d 1016
    ,
    1019 (5th Cir.), cert. denied sub nom. Dallas County Comm'rs
    27
    Court v. Richardson, 
    464 U.S. 1009
    (1983).   Furthermore, a judge
    may certify a subclass represented by only some named
    plaintiffs, with other named plaintiffs asserting different
    claims, if it makes sense to litigate these various claims in a
    single proceeding.    See, e.g., McGonagle v. Home Depot U.S.A.,
    Inc., 
    75 Mass. App. Ct. 593
    , 597 (2009) (judge certified two
    subclasses each represented by only one named plaintiff).
    Nonetheless, the judge did not abuse his discretion in declining
    to certify any alternative classes or subclasses here.
    As to the first proposed alternative, narrowing the class
    to those who suffered outages of at least four days would not
    address the judge's concerns because it would not eliminate the
    need for individual inquiries regarding whether the extended
    outage resulted from FG&E's unfair or deceptive conduct and how
    the customers would have planned differently had they received
    better information.   As to the second alternative, the judge
    noted that the responses of the Legislature and the DPU to
    FG&E's conduct during Winter Storm 2008, see note 
    6, supra
    , may
    already have remedied the allegedly unfair or deceptive
    practices for which the plaintiffs seek equitable relief.     The
    judge permitted the plaintiffs' request for equitable relief to
    proceed on a nonclass basis, and if the plaintiffs succeed in
    proving the need for such relief, the judge may revisit his
    class certification decision at that time.   See Moelis v.
    28
    Berkshire Life Ins. 
    Co., 451 Mass. at 491-492
    .    Cf. Brantley v.
    Hampden Div. of the Probate & Family Court Dep't, 
    457 Mass. 172
    ,
    184 n.15 (2010) (class certification properly denied where
    equitable remedies requested by named plaintiff would afford
    relief to those similarly situated notwithstanding absence of
    class).   Finally, as to the third alternative, the judge
    acknowledged that an estimated-billing class might warrant
    certification but did not so certify because not all named
    plaintiffs had received estimated bills and the plaintiffs had
    requested such a class as just one of sixteen alternatives,
    without explaining how this class claim would fit together with
    the other claims brought by the named plaintiffs.   Because the
    estimated-billing claim rests on conduct distinct from that
    underlying the claims that FG&E failed to restore power and
    failed to provide useful information, the judge properly could
    demand additional information regarding such a class and how it
    would comport with the larger litigation.   See Kwaak v. Pfizer,
    
    Inc., 71 Mass. App. Ct. at 302
    n.8.
    b.    Rule 23.   The plaintiffs also seek to certify a class
    under rule 23 on a claim of gross negligence.    This claim rests
    on FG&E's asserted "deficient emergency preparedness, service
    restoration and communications system."   We understand the
    plaintiffs' gross negligence claim to assert theories of injury
    analogous to those pressed under G. L. c. 93A, and therefore
    29
    affirm the judge's denial of such a class for the same reasons.
    See Kwaak v. Pfizer, 
    Inc., 71 Mass. App. Ct. at 298
    ("a
    certification that fails under c. 93A would fail under the
    requirements of rule 23 as well").
    2.   Issue preclusion.    In its cross appeal, FG&E challenges
    the judge's application of offensive issue preclusion, also
    known as offensive collateral estoppel, to factual findings made
    by the DPU.   "The offensive use of collateral estoppel 'occurs
    when a plaintiff seeks to prevent a defendant from litigating
    issues which the defendant has previously litigated
    unsuccessfully in an action against another party.'"    Evans v.
    Lorillard Tobacco 
    Co., 465 Mass. at 466
    , quoting Matter of
    Cohen, 
    435 Mass. 7
    , 15 (2001).    Offensive issue preclusion "does
    not require mutuality of parties, so long as there is an
    identity of issues, a finding adverse to the party against whom
    it is being asserted, and a judgment by a court or tribunal of
    competent jurisdiction."     Pierce v. Morrison Mahoney LLP, 
    452 Mass. 718
    , 730 (2008), quoting Miles v. Aetna Cas. & Sur. Co.,
    
    412 Mass. 424
    , 427 (1992).    Additionally, "the determination of
    the issues for which preclusion is sought must have been
    essential to the underlying judgment."     Matter of Brauer, 
    452 Mass. 56
    , 67 (2008).
    Once a plaintiff establishes these initial requirements,
    the "central inquiry" becomes whether the defendant had a "full
    30
    and fair opportunity to litigate the issue in the first action."
    Pierce v. Morrison Mahoney 
    LLP, 452 Mass. at 730
    , quoting Matter
    of Goldstone, 
    445 Mass. 551
    , 559 (2005).   Offensive issue
    preclusion may apply to the findings of an administrative agency
    "so long as the tribunal rendering judgment ha[d] the legal
    authority to adjudicate the dispute."   Alba v. Raytheon Co., 
    441 Mass. 836
    , 841 (2004).   See, e.g., Stowe v. Bologna, 
    415 Mass. 20
    , 22 (1993); Haran v. Board of Registration in Med., 
    398 Mass. 571
    , 578-579 (1986); Commonwealth v. Two Parcels of Land, 
    48 Mass. App. Ct. 693
    , 698 (2000).   A judge has wide discretion in
    deciding whether the doctrine should apply in a particular case.
    Matter of 
    Brauer, 452 Mass. at 67
    .
    a.   Identity and essentiality of issues.   FG&E argues that
    the judge failed to identify the particular issues to be
    precluded and therefore did not determine whether they were
    essential to the DPU's judgment and identical to issues
    presented here.   FG&E points to the judge's statement that "[i]f
    this case goes to trial, the trial judge will continue to have
    discretion to make the final decision as to what issues are
    already determined and what issues remain for trial."
    Contrary to FG&E's assertion, however, the judge identified
    a number of DPU findings subject to issue preclusion.   He quoted
    the summary of the DPU's investigatory findings contained in its
    rate-setting decision, see note 
    7, supra
    , among them that FG&E
    31
    did not plan or train sufficiently for emergency weather events,
    that it did not prepare adequately for Winter Storm 2008, and
    that it did not communicate accurate and useful information to
    the public.   The judge then treated these findings as settled in
    determining whether the plaintiffs could establish G. L. c. 93A
    violations as a matter of law.
    These factual findings were essential to the DPU's decision
    that FG&E's various failures in preparing for and responding to
    Winter Storm 2008 constituted independent violations of its duty
    to provide safe and reliable service.   See D.P.U. 09-01-A, at
    52, 59, 71-72, 83-84, 121, 125.    The DPU also imposed numerous
    requirements on FG&E designed to remedy each of its noted
    failures.   See 
    id. at 210-214.
      Accordingly, the DPU's factual
    findings "b[ore] on the outcome of the case" and were essential
    to its judgment.   See Jarosz v. Palmer, 
    436 Mass. 526
    , 533
    (2002).
    Likewise, the DPU's factual findings are identical to
    issues here because the plaintiffs' various G. L. c. 93A and
    gross negligence claims rest on the same conduct that the DPU
    found deficient.   We reject FG&E's contention that the two
    adjudications do not present identical issues because the
    plaintiffs assert claims under G. L. c. 93A that the DPU does
    not have authority to address.    See D.P.U. 09-01-A, at 189.
    Issue preclusion may apply where the two adjudications involve
    32
    the same subsidiary findings, even if they involve different
    ultimate claims.     See Alba v. Raytheon 
    Co., 441 Mass. at 843
    .
    The DPU's 215-page decision contains numerous subsidiary
    findings, and the plaintiffs asserted multiple theories of
    liability resting on different alleged failures by FG&E.      We
    therefore understand the motion judge's statement, that a trial
    judge has continued discretion as to issue preclusion, to be
    merely an acknowledgment of the inefficiency of conducting a
    full analysis of the preclusive effect of each subsidiary
    finding before it becomes clear what facts matter to the
    particular theories of liability that the plaintiffs assert at
    trial.   The motion judge committed no error in deciding that the
    trial judge should retain discretion to make final decisions
    regarding which issues are precluded and which ones remain.
    b.   Fairness.    FG&E also argues that, under the
    circumstances, application of issue preclusion would be unfair.
    "[F]airness is the 'decisive consideration' in determining
    whether to apply offensive issue preclusion."     Pierce v.
    Morrison Mahoney 
    LLP, 452 Mass. at 730
    , quoting Matter of
    
    Goldstone, 445 Mass. at 559
    .    In making this determination,
    "courts generally ask whether (1) the party in whose favor the
    estoppel would operate could have joined the original action,
    (2) the party against whom it would operate had an adequate
    incentive to defend the original action vigorously, (3) 'the
    33
    judgment relied upon as a basis for the estoppel is itself
    inconsistent with one or more previous judgments in favor of the
    defendant,' and (4) 'the second action affords the defendant
    procedural opportunities unavailable in the first action that
    could readily cause a different result.'"     Matter of 
    Brauer, 452 Mass. at 70
    , quoting Haran v. Board of Registration in 
    Med., 398 Mass. at 577-578
    .    See Bar Counsel v. Board of Bar Overseers,
    
    420 Mass. 6
    , 11-12 (1995), quoting Restatement (Second) of
    Judgments § 29 (1982) (listing eight circumstances for judge to
    consider when determining propriety of applying offensive issue
    preclusion).   The judge enjoys "'wide discretion in determining
    whether' applying offensive collateral estoppel 'would be fair
    to the defendant.'"     Pierce v. Morrison Mahoney LLP, supra at
    731, quoting Bar Counsel v. Board of Bar Overseers, supra at 11.
    The party facing preclusion bears the burden of proof on the
    question of fairness.    See Bailey v. Metropolitan Prop. & Liab.
    Ins. Co., 
    24 Mass. App. Ct. 34
    , 37 (1987).    FG&E does not
    contest the first and third factors; its appeal focuses on the
    second and fourth factors.
    i.   Incentive to litigate.     FG&E argues that it did not
    have an adequate incentive to dispute its purported failures
    before the DPU.     It points out that the remedies imposed by the
    DPU in its investigatory decision consisted largely of
    improvements that FG&E already had volunteered to undertake in
    34
    its self-assessment report.   FG&E argues also that affording
    preclusive effect to the DPU findings would undermine its
    cooperative relationship with the DPU and frustrate the public
    utility regulatory scheme by discouraging utilities from
    offering such voluntary submissions.   See Bar Counsel v. Board
    of Bar 
    Overseers, 420 Mass. at 11
    , quoting Restatement (Second)
    of Judgments § 29(1), (5) (in determining whether to apply issue
    preclusion, judge should consider whether "[t]reating the issue
    as conclusively determined would be incompatible with an
    applicable scheme of administering the remedies in the actions
    involved" and whether "[t]he prior determination may have been
    affected by relationships among the parties to the first action
    that are not present in the subsequent action").   These
    arguments are unavailing.
    First, FG&E understates its incentive to litigate before
    the DPU.   During the investigatory proceeding, the Attorney
    General urged the DPU to deny FG&E recovery of storm-related
    costs, to reduce FG&E's return on equity, and to impose a $4.6
    million fine as a result of FG&E's failures during Winter Storm
    2008.   Relying largely on the various failures found in its
    investigatory decision, the DPU in its rate-setting decision
    denied FG&E recovery of nearly $7 million dollars in storm-
    related costs, and reduced FG&E's return on equity.   See D.P.U.
    11-01, at 14, 23, 72-73, 374-375, 425-427.   Furthermore,
    35
    although the DPU ultimately concluded that it lacked authority
    to impose a fine, FG&E faced the possibility that the DPU would
    reach a different conclusion.   Given the large financial stakes
    involved, FG&E had adequate incentive to litigate vigorously the
    facts found in the DPU decision.   See Matter of 
    Goldstone, 445 Mass. at 559
    -560.
    Second, applying issue preclusion would not undermine the
    public utility regulatory scheme because the large financial
    stakes involved here already provided a significant incentive
    for FG&E to litigate the DPU action "to the hilt."   See
    Commissioner of the Dep't of Employment & Training v. Dugan, 
    428 Mass. 138
    , 145 (1998).   Moreover, partly in response to FG&E's
    failures during Winter Storm 2008, the Legislature authorized
    the DPU to impose fines of up to $20 million for violations of a
    utility's emergency preparation and service restoration duties,
    an action the Legislature would not have taken had it believed
    that potential liability of this magnitude would undermine the
    regulatory scheme.   See G. L. c. 164, § 1J.
    ii.   Different procedural opportunities.   As to the fourth
    fairness consideration, FG&E identifies three procedural
    distinctions between the two actions that, it contends, render
    issue preclusion inappropriate here:   (1) the DPU considered
    evidence not admissible in the Superior Court proceeding, (2)
    different parties bore the burden of proof in the two actions,
    36
    and (3) the DPU proceedings involved a more limited right of
    appeal.    A party seeking to avoid issue preclusion must show
    that the procedural distinctions "could likely result in the
    issue being differently determined."    Matter of 
    Goldstone, 445 Mass. at 561
    n.7, quoting Restatement (Second) of Judgments
    § 29(2).    We conclude that FG&E has not demonstrated that these
    distinctions affected the DPU findings at issue.
    First, FG&E emphasizes that the DPU considered extensive
    public comments from individuals not subject to cross-
    examination.    See D.P.U. 09-01-A, at 9-17.    After reviewing the
    record, the judge concluded that the DPU did not rely on the
    public comments in making any findings that might have
    preclusive effect in this case.    The DPU did reference certain
    public comments in discussing deficiencies in FG&E's management
    of restoration crews and the performance of its call center.
    See 
    id. at 101,
    103, 106, 120.    However, the DPU also relied on
    other evidence in finding these failures, and FG&E conceded that
    its crew logistics needed improvement and that its call center
    was overwhelmed during Winter Storm 2008.      See 
    id. at 101-102,
    104-106, 112, 120-121.    Accordingly, the public comments likely
    did not affect the DPU's findings and therefore do not undermine
    the judge's application of issue preclusion.     See Commonwealth
    v. Two Parcels of 
    Land, 48 Mass. App. Ct. at 699-700
    (issue
    preclusion warranted notwithstanding agency's consideration of
    37
    hearsay evidence in first proceeding).
    Second, FG&E points out that the burden of proof has
    shifted from FG&E in the DPU proceedings to the plaintiffs in
    this case.   Compare Fitchburg Gas & Elec. Light Co. v.
    Department of Pub. Utils., 
    375 Mass. 571
    , 578-579 (1978) (once
    DPU challenges company's decisions, company faces burden of
    proving that those decisions comply with valid DPU policies),
    with Cleary v. Cleary, 
    427 Mass. 286
    , 297 (1998) (plaintiff has
    burden of proving violation of G. L. c. 93A).   Although a
    determination in a prior proceeding ordinarily has "no
    preclusive effect" where the burden has shifted away from the
    party facing preclusion, Jarosz v. 
    Palmer, 436 Mass. at 532
    , a
    judge has discretion to grant preclusive effect to an issue if
    the burden of proof did not affect the outcome of the prior
    determination.   See Matter of 
    Goldstone, 445 Mass. at 563-564
    .
    Cf. Bar Counsel v. Board of Bar 
    Overseers, 420 Mass. at 12
    (noting that burden shifted between two proceedings but
    remanding for decision whether to apply issue preclusion).
    The DPU did not recite the burden of proof in its
    investigatory decision, and the decision contains no language
    suggesting that the DPU's factual findings rested on FG&E's
    failure to carry its burden.   See D.P.U. 09-01-A, at 58-60, 68-
    72, 81-84, 97-102, 119-128, 132-136, 143-147, 158-160.
    Furthermore, as reflected by the twenty-eight recommended
    38
    improvements in its self-assessment report, FG&E largely did not
    dispute the DPU's findings pertaining to FG&E's deficient storm-
    related conduct.   See 
    id. at 199-204.
      Thus, the shift in the
    burden of proof did not foreclose the judge from applying issue
    preclusion.   See Matter of 
    Goldstone, 445 Mass. at 563-564
    (notwithstanding shift in burden of proof, issue preclusion
    warranted because facts were not disputed in first
    adjudication).
    Third, FG&E contends that it could not appeal the DPU's
    factual findings because G. L. c. 25, § 5, limited its right of
    appeal to "matters of law."   To the contrary, however, FG&E
    could have challenged the DPU's findings as "[u]nsupported by
    substantial evidence."   See G. L. c. 30A, § 14 (7) (e);
    Fitchburg Gas & Elec. Light Co. v. Department of Pub. Utils.,
    
    460 Mass. 800
    , 811 (2011).    This limited right of appeal has not
    prevented us from affording preclusive effect to administrative
    findings.   See, e.g., Stowe v. 
    Bologna, 415 Mass. at 22
    ; Brunson
    v. Wall, 
    405 Mass. 446
    , 451 (1989).   Nor does FG&E's decision
    not to appeal from the DPU's adjudications render the
    application of issue preclusion improper.   See Stowe v. Bologna,
    supra; Brunson v. 
    Wall, supra
    ; Conservation Comm'n of Falmouth
    v. Pacheco, 
    49 Mass. App. Ct. 737
    , 741-742 & n.5 (2000), and
    authorities cited.
    The DPU conducted a five-day adjudicatory hearing at which
    39
    FG&E was represented by competent counsel, and FG&E had a right
    to proffer evidence, subpoena witnesses, cross-examine witnesses
    under oath, present oral and written arguments, and appeal an
    adverse decision.   See 220 Code Mass. Regs. §§ 1.06(6)(f),
    1.10(9), 1.13.    See also Martin v. Ring, 
    401 Mass. 59
    , 63-64
    (1987) (emphasizing that precluded party "had ample opportunity
    in the prior adjudication to present evidence and to cross-
    examine witnesses" and that he could have appealed from adverse
    administrative decision); Haran v. Board of Registration in
    
    Med., 398 Mass. at 578
    (emphasizing that precluded party was
    represented by counsel at four-day administrative hearing).      The
    judge's application of issue preclusion was within the scope of
    his broad discretion.
    Conclusion.     We affirm the orders denying the plaintiffs'
    motion for class certification, denying the plaintiffs' motion
    for partial summary judgment, and denying in part FG&E's motion
    for partial summary judgment.
    So ordered.