Louisiana Public Service Commission v. Federal Energy Regulatory Commission ( 2014 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued September 18, 2014         Decided December 5, 2014
    No. 13-1155
    LOUISIANA PUBLIC SERVICE COMMISSION,
    PETITIONER
    v.
    FEDERAL ENERGY REGULATORY COMMISSION,
    RESPONDENT
    ARKANSAS PUBLIC SERVICE COMMISSION, ET AL.,
    INTERVENORS
    On Petition for Review of Orders of the
    Federal Energy Regulatory Commission
    Michael R. Fontham argued the cause for petitioner.
    With him on the briefs were Paul L. Zimmering, Noel J. Darce,
    Dana M. Shelton, and Stephen Kebel.
    Holly E. Cafer, Attorney, Federal Energy Regulatory
    Commission, argued the cause for respondent. With her on the
    brief were David L. Morenoff, Acting General Counsel, and
    Robert H. Solomon, Solicitor.
    John S. Moot argued the cause for intervenors. With him
    2
    on the brief were Gerard A. Clark, John L. Shepherd, Jr., Andrea
    Weinstein, Dennis Lane, Glen L. Ortman, Paul Randolph
    Hightower, and Chad James Reynolds.
    Before: ROGERS and WILKINS, Circuit Judges, and
    WILLIAMS, Senior Circuit Judge.
    ROGERS, Circuit Judge: The Louisiana Public Service
    Commission (“LaPSC”) petitions for review of an order of the
    Federal Energy Regulatory Commission denying refunds to
    certain Louisiana-based utility companies for payments they
    made pursuant to a cost classification later found to be “unjust
    and unreasonable.” The Commission failed, LaPSC contends,
    adequately to explain its reasoning in departing from its “general
    policy” of ordering refunds when consumers have paid unjust
    and unreasonable rates. We agree. Although the Commission
    enjoys broad discretion in fashioning remedies, see, e.g., La.
    Pub. Serv. Comm’n v. FERC, 
    522 F.3d 378
    , 393 (D.C. Cir.
    2008), it must rationally explain its decision, Towns of Concord,
    Norwood, & Wellesley v. FERC, 
    955 F.2d 67
    , 76 (D.C. Cir.
    1992) (“Town of Concord”). In denying LaPSC’s refund request,
    the Commission relied on precedent it characterized as a policy
    to deny refunds in cost allocation cases, yet the precedent on
    which it relied is based largely on considerations the
    Commission did not find applicable. Otherwise the Commission
    relied on the holding company’s inability to “revisit” past
    decisions, seemingly a universally true circumstance.
    Accordingly, we grant the petition and remand.
    I.
    Section 206(a) of the Federal Power Act (“FPA”), 16
    U.S.C. § 824e(a), requires the Commission to reform any public
    utility wholesale electricity rate that it determines is “unjust,
    3
    unreasonable, unduly discriminatory or preferential.”1 See also
    La. Pub. Serv. Comm’n v. FERC, 
    184 F.3d 892
    , 897 (D.C. Cir.
    1999) (“Louisiana I”). Originally, section 206 allowed a party
    seeking lower rates to obtain only prospective relief at the
    conclusion of a FERC rate-reform proceeding — often several
    years after the initial filing of the complaint. See S. REP. NO.
    100-491, at 3 (1988). By contrast, under section 205 of the FPA,
    utility companies seeking to raise their rates could receive nearly
    immediate relief, subject to refund only where the Commission
    declined to approve the increase. See 16 U.S.C. § 824d. In
    1988, Congress enacted the Regulatory Fairness Act, Pub. L. No.
    100-473, which amended section 206 to authorize the
    Commission to order refunds for certain overpayments made
    during the pendency of a rate-reform proceeding.
    Section 206(b), as amended, requires the Commission to
    set a “refund effective date,” which is “no[t] later than 5 months
    after the filing of [the] complaint.” 16 U.S.C. § 824e(b). At the
    conclusion of the proceeding, “the Commission may order
    refunds of any amounts paid” during the first 15 months
    following the refund effective date “in excess of those which
    would have been paid under the just and reasonable rate . . .
    which the Commission orders to be thereafter observed and in
    force.” 
    Id. An exception
    provides that in a rate-reform
    proceeding
    involving two or more electric utility companies of a
    registered holding company, refunds which might
    otherwise be payable under subsection (b) of [section
    1
    Section 206(a) requires the reform of “any rate, charge, or
    classification, demanded, observed, charged, or collected by any
    public utility for any transmission or sale subject to the jurisdiction of
    the Commission, or . . . any rule, regulation, practice, or contract
    affecting such rate, charge, or classification.” 16 U.S.C. § 824e(a).
    4
    206] shall not be ordered to the extent that such
    refunds would result from any portion of a
    Commission order that (1) requires a decrease in
    system production or transmission costs to be paid by
    one or more of such electric companies; and (2) is
    based upon a determination that the amount of such
    decrease should be paid through an increase in the
    costs to be paid by other electric utility companies of
    such registered holding company[.]
    16 U.S.C. § 824e(c) (emphases added). This is subject to a
    proviso “[t]hat refunds, in whole or in part, may be ordered by
    the Commission”
    if it determines that the registered holding company
    would not experience any reduction in revenues
    which results from an inability of an electric utility
    company of the holding company to recover such
    increase in costs for the period between the refund
    effective date and effective date of the Commission’s
    order.
    
    Id. § 824e(c)(2).
    LaPSC’s petition for review concerns the last remaining
    issue in litigation this court has previously addressed. See
    Louisiana I, 
    184 F.3d 892
    ; La. Pub. Serv. Comm’n v. FERC, 
    482 F.3d 510
    (D.C. Cir. 2007) (“Louisiana II”). In the State of
    Louisiana, electricity is supplied to consumers by, among others,
    three “Entergy”-branded public utility companies: Entergy
    Louisiana, LLC, Entergy Gulf States Louisiana, LLC, and
    Entergy New Orleans, Inc. These companies are owned,
    alongside several other Entergy operating companies in
    neighboring states, by a single holding company, Entergy
    Corporation (“Entergy”). Transactions among Entergy operating
    5
    companies are governed by a Commission-approved system
    agreement, which enables the operating companies “to act as a
    single economic unit.” Louisiana 
    I, 184 F.3d at 894
    . Under the
    agreement, the operating companies share electricity with each
    other and allocate costs among themselves with the aim of
    “equalizing . . . any imbalance of costs associated with the
    construction, ownership and operation of such facilities as are
    used for the mutual benefit of all the [c]ompanies.” 
    Id. (quoting System
    Agreement § 3.01). This court has explained:
    The system agreement allocates capacity (or demand)
    costs to each operating company in direct proportion
    to the power that it takes when total demand upon the
    Entergy system peaks each month. If, at the monthly
    system peak, a company takes more energy than it
    generates, then it is considered “short” and must
    make an equalizing payment to the “long” companies
    that have provided the excess capacity. This
    arrangement is mutually beneficial because
    companies that are long have a ready outlet for their
    surplus energy and are thereby compensated for
    carrying excess capacity, while companies that are
    short enjoy the benefit of a low cost and dependable
    way of meeting their energy requirements.
    
    Id. at 894–95.
    In March 1995, LaPSC filed a complaint under section
    206 “alleging that, due to changed circumstances, the allocation
    of capacity costs [under the system agreement] had become
    unjust and unreasonable.” Louisiana 
    I, 184 F.3d at 895
    . In
    particular, it objected to the inclusion of “interruptible load”
    when calculating an operating company’s capacity charge. See
    
    id. at 895–96.
    The Commission dismissed the complaint. See
    La. Pub. Serv. Comm’n v. Entergy Serv., Inc., 76 F.E.R.C. ¶
    6
    61,168 (1996), reh’g denied, 80 F.E.R.C. ¶ 61,282 (1997). After
    the court remanded for further explanation, see Louisiana 
    I, 184 F.3d at 900
    , the Commission determined that Entergy’s inclusion
    of interruptible load in assessing capacity costs was unjust and
    unreasonable. See Opinion No. 468, 106 F.E.R.C. ¶ 61,228, at
    PP 60-77 (2004). Entergy was ordered to adjust its rates
    beginning April 1, 2004, but the Commission declined to order
    refunds for any overcharges incurred during the pendency of the
    proceeding because it could not “find, as [it] must under Section
    206(c) of the FPA, that the Operating Companies that would pay
    refunds as a result of a reallocation of costs would be able to
    collect those refunds from their ratepayers.” 
    Id. at P
    88.
    LaPSC again petitioned for review, and the court again
    remanded the case, holding that the Commission had not
    adequately explained why it could not make the requisite section
    206(c) finding. See Louisiana 
    II, 482 F.3d at 520
    . On remand,
    the Commission eventually concluded that refunds were
    unwarranted. But its path to that conclusion was somewhat
    circuitous. See Order Denying Rehearing, 142 F.E.R.C.
    ¶ 61,211, at PP 7–13 (2013).
    On remand from Louisiana II, the Commission ordered
    refunds, citing the determination by the Administrative Law
    Judge (“ALJ”) that the non-Louisiana operating companies
    could, in fact, recover surcharges prospectively. Order on
    Remand, 120 F.E.R.C. ¶ 61,241 (2007) (“First Order”) (citing
    La. Pub. Serv. Comm’n v. Entergy Corp. 96 F.E.R.C. ¶ 63,002,
    at 65,023-24 (2001)), reh’g denied, Order Denying Rehearing,
    124 F.E.R.C. ¶ 61,275 (2008) (“Second Order”). In August
    2010, after Entergy petitioned for review and the Commission
    requested a remand, it amended the refund order to provide
    further explanation. See Amended Order on Remand, 132
    F.E.R.C. ¶ 61,133 (2010) (“Third Order”). “There is no
    question,” the Commission acknowledged, “that the Commission
    7
    has a policy of granting full refunds to correct unjust and
    unreasonable rates.” 
    Id. at P
    31. It also rejected several
    equitable reasons for deviating from the general policy. For one,
    the fact that the mis-allocation “was not undertaken in bad faith
    does not militate against applying the Commission’s general
    refund policy here . . . .” 
    Id. at P
    32. For another, because
    customer usage patterns were not at issue, the Commission did
    “not see the passage of time as affecting the equities one way or
    the other.” 
    Id. Upon rehearing,
    the Commission reversed itself. See
    Order Granting Rehearing in Part and Denying Rehearing in
    Part (“Fourth Order”), 135 F.E.R.C. ¶ 61,218 (2011). Although
    confirming that section 206(c) did not bar the refunds LaPSC
    requested, the Commission declined to order them. 
    Id. at P
    2.
    “[D]isavow[ing] the distinction” it had “attempted to draw” in
    the earlier orders “between the treatment of refunds in rate
    design and cost allocation cases,” 
    id. at P
    23, the Commission
    concluded that the critical consideration was that “the Entergy
    system as a whole collected the proper level of revenue.” 
    Id. at P
    24.
    In denying further rehearing, the Commission explained
    that it had “two lines of precedent on refunds, each dealing with
    a different situation.” See Order Denying Rehearing (“Fifth
    Order”), 142 F.E.R.C. ¶ 61,211 at P 54 (2013) (quoting Black
    Oak Energy, L.L.C., 136 F.E.R.C. ¶ 61,040, at P 25 (2011), reh’g
    denied, 139 F.E.R.C. ¶ 61,111 (2012)):
    When a case involves a company over-collecting
    revenues to which it was not entitled, the
    Commission generally holds that the excess revenues
    should be refunded to customers. By contrast, in a
    case where the company collected the proper level of
    revenues, but it is later determined that those
    8
    revenues should have been allocated differently, the
    Commission traditionally has declined to order
    refunds.
    
    Id. This case
    fell into the latter category because the Entergy
    system had simply mis-allocated costs and did not over-recover.
    See 
    id. at P
    61. The Commission also discussed the precedent
    underlying its policy. In previous rate design and cost allocation
    decisions, it had reasoned that: “refunds would potentially result
    in under-recovery”; “a different [cost] allocation would have
    resulted in a different decision by consumers or the utility had it
    been instituted at the time of the facts at issue, but it is simply
    too late to alter the result”; there may be a “detrimental effect
    upon an organized market”; the surcharge resulting from refunds
    would fall on the current generation of ratepayers who were not
    the same ratepayers that received the benefits” (internal
    quotation marks omitted); and the “complication and cost of
    rerunning markets” may be unjustified. 
    Id. at P
    55 & n.127.
    Acknowledging that the first factor (the potential for under-
    recovery of costs) “is not present,” 
    id. at P
    63, the Commission
    claimed to follow its “long-standing policy” of denying refunds
    in cost allocation cases, 
    id. at P
    57 (quoting Occidental Chem.
    Corp., 110 F.E.R.C. ¶ 61,378, at P 10 (2005)). The Commission
    stated it would, however, “continue to allow for . . . discretion”
    in particular cases “to determine whether refunds are
    appropriate.” 
    Id. at P
    51. In addition, it noted that an equitable
    consideration “disfavor[ed]” refunds here: “Entergy cannot
    review and revisit past decisions were we to order a refund.” 
    Id. at P
    63. LaPSC petitions for review.
    II.
    “[W]hen a federal court of appeals reviews an
    administrative agency’s choice of remedies to correct a violation
    of a law the agency is charged with enforcing, the scope of
    9
    judicial review is particularly narrow.” La. Pub. Serv. Comm’n
    v. FERC, 
    174 F.3d 218
    , 224 (D.C. Cir. 1999) (quoting Nat’l
    Treasury Emps. Union v. FLRA, 
    910 F.2d 964
    , 966–67 (D.C. Cir.
    1990)).      Thus, this court generally “defer[s] to [the
    Commission’s] decisions in remedial matters, respecting that the
    difficult problem of balancing competing equities and interests
    has been given by Congress to the Commission with full
    knowledge that this judgment requires a great deal of discretion.”
    Koch Gateway Pipeline Co. v. FERC, 
    136 F.3d 810
    , 816 (D.C.
    Cir. 1998) (internal quotation marks omitted). The court has
    often noted that the breadth of the Commission’s discretion is “at
    its zenith” when fashioning remedies. La. Pub. Serv. 
    Comm’n, 174 F.3d at 225
    (internal alterations and quotation marks
    omitted).
    At the same time, “[a]s an administrative agency, [the
    Commission] is subject to the constraints of the Administrative
    Procedure Act and consequently is forbidden from acting in a
    way that is ‘arbitrary, capricious, an abuse of discretion, or
    otherwise not in accordance with law.’” Koch Gateway Pipeline
    
    Co., 136 F.3d at 815
    (quoting 5 U.S.C. § 706(2)(A)). In the
    present context, the Commission must “show that it considered
    relevant factors and struck a reasonable accommodation among
    them, and that its order granting or denying refunds was
    equitable in the circumstances of th[e] litigation.” Town of
    
    Concord, 955 F.2d at 76
    (internal quotation marks, alterations,
    and citations omitted). To the extent the Commission relies upon
    factual findings to support its exercise of discretion, its findings
    must be supported by substantial evidence. See La. Pub. Serv.
    
    Comm’n, 174 F.3d at 225
    .
    A.
    LaPSC contends that the denial of refunds conflicts with
    the core purpose of the Federal Power Act, namely, “the
    protection of consumers from excessive rates and charges,”
    10
    Mun. Light Bds. of Reading & Wakefield v. Fed. Power Comm’n,
    
    450 F.2d 1341
    , 1348 (D.C. Cir. 1971). The court does assess the
    Commission’s remedial decisions in light of the underlying aims
    of the FPA and will set aside a remedy that “thwart[s] the core
    purposes . . . of the statute.” Town of 
    Concord, 955 F.2d at 75
    ;
    see also 
    id. at 74.
    Yet even assuming the “primary aim” of the
    FPA is to “protect[] . . . consumers from excessive rates and
    charges,” Municipal Light 
    Bds., 450 F.2d at 1348
    , there is no
    conflict with that purpose here. The FPA did not authorize
    refunds in section 206 proceedings until the 1988 amendments
    made by the Regulatory Fairness Act. Even then, Congress
    barred refunds in holding company cost allocation cases unless
    it can be shown that the utility will not suffer an under-recovery.
    See 16 U.S.C. § 824e(c). To hold that refunds are mandatory
    every time there is an unjust or unreasonable rate would be
    contrary to Congress’s use of the permissive “may” in section
    206(b), and to this court’s rejection of the argument that the
    amendments create a presumption in favor of refunds, see Town
    of 
    Concord, 955 F.2d at 76
    . Section 205 of the FPA declares
    unjust and unreasonable rates to be “unlawful,” 16 U.S.C.
    § 824d(a), and section 206 requires the Commission to reform
    any such rates, see 
    id. § 824e(a).
    Whether a party should receive
    refunds for past payments of excessive charges is a separate
    issue. See Town of 
    Concord, 955 F.2d at 73
    Relying on Exxon Co., U.S.A. v. FERC, 
    182 F.3d 30
    , 49
    (D.C. Cir. 1999), and Public Service Co. of Colorado v. FERC,
    
    91 F.3d 1478
    , 1490 (D.C. Cir. 1996), LaPSC insists that there is
    “a strong equitable presumption” in support of “making parties
    whole” through refunds. Its reliance is misplaced. Under Exxon,
    the “presumption” urged by LaPSC applies “when the
    Commission [has] commit[ted] legal error.” Exxon Co., 
    U.S.A., 182 F.3d at 49
    (internal quotation marks omitted). LaPSC has
    not identified an analogous legal error; the Commission’s initial
    dismissal of LaPSC’s complaint is not what caused Entergy’s
    11
    rates to become unjust and unreasonable. And Colorado
    supports refunds where producers would otherwise keep
    unlawful overcharges. See Pub. Serv. Co. of 
    Colorado, 91 F.3d at 1490
    . Here, the Commission’s denial was based principally
    on the fact that the Entergy system, as a whole, did not retain
    unlawful overcharges. “[A]bsent some conflict with the explicit
    requirements or core purposes of a statute, [the court] ha[s]
    refused to constrain agency discretion by imposing a
    presumption in favor of refunds.” Town of 
    Concord, 955 F.2d at 76
    .
    LaPSC also contends that the Commission’s decision to
    deny refunds institutes a “policy” that “impermissibly denies
    consumers any practical remedy for unjust and unreasonable
    rates” “in cases where costs are allocated among a parent’s
    subsidiaries.” Pet’r Br. 43. The Commission, however, did not
    announce “[t]he elimination of Section 206 as a vehicle to
    remedy unlawful rates,” 
    id. at 30,
    because even under the policy
    as described, the Commission would allow refunds where there
    is system over-recovery or a filed rate violation.
    B.
    LaPSC more persuasively contends that the Commission
    “did not reasonably explain the departure” from its “general
    policy” of ordering refunds when consumers have paid unjust
    and unreasonable rates. 
    Id. at 48;
    cf. Third Order, 132 F.E.R.C.
    ¶ 61,133, at P 31 & n.62 (citing approval of the refund policy in
    Westar Energy, Inc. v. FERC, 
    568 F.3d 985
    , 989 (D.C. Cir.
    2009)). The Commission can depart from a prior policy or line
    of precedent, but it must acknowledge that it is doing so and
    provide a reasoned explanation. See FCC v. Fox Television
    Stations, Inc., 
    556 U.S. 502
    , 515 (2009); Motor Vehicle Mfrs.
    Ass’n v. State Farm Mut. Auto. Ins. Co., 
    463 U.S. 29
    , 57 (1983).
    The Commission’s primary explanation for denying
    12
    LaPSC’s refund request was that a different “general policy”
    applied in which refunds are denied in both cost allocation and
    rate design cases. Fifth Order, 142 F.E.R.C. ¶ 61,211, at P 57;
    see 
    id. at P
    P 49–75. The Commission stated that it saw no reason
    not to follow the “same approach here” because it viewed “the
    issues of inclusion or exclusion of interruptible load in allocating
    costs as a demand allocation dispute” — “a zero-sum game” for
    the Entergy system — “rather than a case of cost over-recovery.”
    
    Id. at P
    61. In fact, the Commission’s decisions have relied on
    specific factors rather than such a broad policy. For instance, in
    cost allocation decisions where the utility over-recovered or
    violated the filed rate, the Commission has ordered refunds. See,
    e.g., Fifth Order, 142 F.E.R.C. ¶ 61,211, at PP 65, 69, 73 (citing
    Nantahala Power & Light Co., 19 F.E.R.C. ¶ 61,152, at 61,280
    (1982) (over-recovery)); Blue Ridge Power Agency v.
    Appalachian Power Co., 58 F.E.R.C. ¶ 61,193, at 61,603 (1992)
    (filed rate violation). Decisions denying refunds have generally
    involved the possibility of under-recovery. See, e.g., Black Oak
    Energy, LLC, 136 F.E.R.C. ¶ 61,040, at P 28 (2011); Occidental
    Chemical Corp., 110 F.E.R.C. 61,378, at P 10 (2005). The
    Commission’s citation of American Electric Power Service
    Corp., 114 F.E.R.C. ¶ 61,288 (2006) — where, on accepting a
    rate filed under FPA § 205, the Commission unsurprisingly did
    not award refunds with respect to the lawful rates previously in
    effect, 
    id. at P
    26 — hardly advances its explanation.
    The Commission also relies on Southern Company
    Services, Inc., 64 F.E.R.C. ¶ 61,033 (1993), in which, after
    finding Southern had not met its burden under FPA § 205 to show
    that its proposed cost classification would be just and reasonable,
    it denied refunds because there were no “excess revenues to the
    Southern System” and past “operational decisions . . . cannot be
    undone.” 
    Id. at 61,332.
    But one decision does not constitute a
    “line[] of precedent,” Fifth Order, 142 F.E.R.C. ¶ 61,211, at PP
    11, 54 (internal quotation marks omitted), much less offer a
    13
    comprehensive theory. The Commission has not pointed to such
    a theory in Southern Company or any other decisions. The
    premise of a “general policy of denial of refunds,” 
    id. at P
    57,
    suggests a broader rule than the Commission’s decisions
    establish. As Commission counsel acknowledged during oral
    argument, its previous decisions do not speak directly to the
    circumstances of this case. See Oral Arg. Tr. 15–16, 23–24.
    Consequently, the Commission’s reliance on its “policy” does not
    suffice to explain its decision.
    A further problem is that the equitable factors relied on by
    the Commission in previous refund denials were largely absent
    here. In identifying its “policy,” the Commission pointed to the
    following reasons for denying refunds: potential under-recovery
    by the utility; consumers’ and utilities’ inability to revisit past
    decisions; a “detrimental effect upon an organized market”;
    different generations of consumers paying the surcharges and
    receiving the past benefits; and the “complication and cost of
    rerunning markets.” Fifth Order, 142 F.E.R.C. ¶ 61,211, at P 55
    & n.127. The Commission recognized that “the danger of under-
    recovery of costs in this case is not present.” 
    Id. at P
    63. It made
    no mention of any “past decisions” by consumers, see 
    id. at P
    P
    63–64, or of inequities among different generations, or of
    detrimental effects on any market.
    The Commission identified two considerations as
    warranting the denial of refunds in LaPSC’s case: the lack of
    over-recovery by Entergy and “the fact that Entergy cannot
    review and revisit past decisions were [the Commission] to order
    a refund,” 
    id. at P
    63. Neither consideration carries the
    Commission’s burden of reasoned explanation or ties this case to
    the “long-standing policy,” 
    id. at P
    57 (quoting Occidental
    Chemical Corp., 110 F.E.R.C. ¶ 61,378, at P 10 (2005)). The
    Commission did not explain why a lack of over-recovery should
    automatically negate refunds. And it neither identified any
    14
    specific “past decisions” that Entergy could not revisit, nor
    explained why that fact — presumably true in every refund
    decision — was more significant here than in other decisions in
    which it orders refunds.
    To the extent the Commission maintains that it relied on
    all the factors in its cited decisions (except under-recovery, which
    it had explicitly rejected), the Fifth Order reveals otherwise. In
    paragraph 55 and footnote 127, the Commission listed “equitable
    considerations that [it] has examined” when denying refunds in
    cost allocation and rate design decisions. See Fifth Order, 142
    F.E.R.C. ¶ 61,211. Those considerations explained why the
    “policy” existed, not why it applied to this case. Beyond reliance
    by Entergy and its lack of over-recovery, the Commission did not
    state that any other consideration mentioned in its precedent was
    present here.
    Although the Commission can “adher[e] to its standard
    approach,” Westar 
    Energy, 568 F.3d at 989
    , it cannot reasonably
    apply a policy that is based on factors that it acknowledges are
    not present in a given case. Invocation of its “policy” did not
    eliminate the need for the Commission to consider the factual
    circumstances here: As a result of an unjust and unreasonable
    cost allocation, consumers in Louisiana paid their utility
    companies too much while consumers in other states paid too
    little, and refunds, if ordered, would transfer a subset of the total
    overpayment to Entergy’s Louisiana operating companies from
    other Entergy operating companies.
    C.
    The Commission maintains that it did weigh the equities
    when it relied on Entergy’s lack of over-recovery and inability to
    revisit past decisions. See Fifth Order, 142 F.E.R.C. ¶ 61,211, at
    PP 61-64. Yet its analysis fails to provide an adequate
    explanation for denying LaPSC’s refund request.               The
    15
    Commission relied on the fact that Entergy did not receive more
    revenue than it was entitled to receive in the aggregate, stating
    that “the allocation of demand-related reserve costs . . . is a zero-
    sum game in which the Entergy System receives no excess
    revenues.” 
    Id. at P
    61. Intervenor Entergy Services, the agent for
    Entergy’s operating companies, maintains that a lack of over-
    recovery or filed rate violation is the only factor the Commission
    need consider. It suggests that “where, as here, there is no tariff
    violation or over recovery by utility shareholders, no ‘wrong’
    exists to be rectified with refunds.” Intervenor’s Br. 13. Pointing
    to the statement in Town of Concord that refunds are “akin to
    
    restitution,” 955 F.2d at 75
    , Entergy Services concludes that the
    Commission need only order refunds where a utility has been
    unjustly enriched. This is not the rationale adopted by the
    Commission in denying LaPSC’s refund requests, and the
    agency’s “action cannot be upheld merely because findings might
    have been made and considerations disclosed which would
    justify” the decision. SEC v. Chenery Corp., 
    318 U.S. 80
    , 94
    (1943) (emphasis added). Entergy Services’ analysis is also
    contrary to the Commission’s apparent practice of analyzing
    factors beyond over-recovery. The statement in Town of
    Concord does little to advance Entergy Services’ suggested
    approach inasmuch as that case involved a filed rate violation “of
    the most minor, technical 
    sort,” 955 F.2d at 75
    , where the charges
    at issue were recoverable but not through the accounting
    mechanism the utility had employed, 
    id. at 69.
    The Commission concluded that “an equitable ground
    disfavoring refunds” was “the fact that Entergy cannot review
    and revisit past decisions were we to order a refund.” Fifth
    Order, 142 F.E.R.C. ¶ 61,211, at P 63. It stated that “operational
    decisions made while the operating companies’ proposed cost
    classification was in effect, and thus made in reliance on that
    classification, cannot be undone.” 
    Id. (quoting Southern
    Co.
    Services, Inc., 64 F.E.R.C. ¶ 61,033, at 61,332 (1992)). Yet some
    16
    amount of reliance is likely to be present every time the
    Commission considers ordering refunds. As long as decisions by
    consumers and utilities respond to price, it is possible that they
    would have altered their consumption or production decisions,
    respectively, had they been faced with different price signals.
    Because that is always true, “past decisions” in the abstract
    cannot be the only factor against refunds. Phrased at that level of
    generality, the same factor is present whenever the Commission
    does order refunds.
    The Commission did not identify any particular decisions
    made by Entergy in reliance on the inclusion of interruptible load
    in its cost allocation that in some way particularly weakened the
    case for refunds. See Fifth Order, 142 F.E.R.C. ¶ 61,211, at PP
    63–64. Neither did Entergy Services. See Intervenor’s Br. 18.
    During oral argument, Commission counsel mentioned the
    decision by Entergy’s subsidiaries “not to shave their peak load,”
    which they might have done under a different cost allocation, see
    Oral Arg. Tr. 18–19, but this too is a generic possibility of
    reliance insufficient to distinguish other decisions in which the
    Commission awards refunds based on unjust and unreasonable
    rates. Once LaPSC filed its section 206 complaint in 1995,
    Entergy was on notice that interruptible load could be ordered
    removed from the calculation of peak load. See Exxon 
    Co., 182 F.3d at 49
    –50; Pub. Serv. Co. of 
    Colorado, 91 F.3d at 1490
    .
    Unrebutted expert evidence of record offered by LaPSC indicated
    that refunds between operating companies in the context of
    billing errors were routine and not disruptive. See Affidavit of
    Stephen J. Baron, ¶¶ 12, 13 (Jan. 19, 2010).
    Accordingly, because the line of precedent on which the
    Commission relied involved rationales that it concluded were
    not present in LaPSC’s case, and because the existence of the
    identified equitable factor is unclear and its relevance
    inadequately explained, we grant the petition and remand the
    17
    matter to the Commission. It remains for the Commission on
    remand to consider the relevant factors and weigh them against
    one another, striking “a reasonable accommodation among
    them.” Las Cruces TV Cable v. FCC, 
    645 F.2d 1041
    , 1047
    (D.C. Cir. 1981); see Town of 
    Concord, 955 F.2d at 76
    .