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


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  •      Case: 13-60874    Document: 00512837021   Page: 1   Date Filed: 11/14/2014
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT
    No. 13-60874                  United States Court of Appeals
    Fifth Circuit
    FILED
    LOUISIANA PUBLIC SERVICE COMMISSION,                          November 14, 2014
    Lyle W. Cayce
    Petitioner                                              Clerk
    v.
    FEDERAL ENERGY REGULATORY COMMISSION,
    Respondent
    On Petition for Review of Orders
    of the Federal Energy Regulatory Commission
    Before KING, DENNIS, and CLEMENT, Circuit Judges.
    EDITH BROWN CLEMENT, Circuit Judge:
    The Louisiana Public Service Commission (“LPSC”) seeks review of
    certain orders of the Federal Energy Regulatory Commission (“FERC”)
    relating to the allocation of production costs among Entergy Corporation’s
    (“Entergy”) six operating companies.      Because FERC’s procedural and
    ratemaking decisions were not arbitrary and capricious, we DENY LPSC’s
    petition for review.
    FACTS AND PROCEEDINGS
    I. Regulatory Background
    Section 201 of the Federal Power Act (“FPA”) endows FERC with
    jurisdiction over the transmission and sale at wholesale of electricity in
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    interstate commerce. 
    16 U.S.C. § 824
    (a)-(b). FERC reviews all rates within its
    jurisdiction to ensure that they are “just and reasonable.” 
    Id.
     § 824d(a). In
    furtherance of this objective, FERC may, on its own initiative or upon the filing
    of a third-party complaint, investigate whether an existing rate is lawful. Id.
    § 824e(a). This is referred to as a “Section 206” proceeding. The complainant—
    whether it is FERC or a third party—bears the burden of proof to demonstrate
    that a rate is unjust or unreasonable. Id. § 824e(b). If FERC concludes that
    a rate is unlawful, it must set a new just and reasonable rate. Id. § 824e(a).
    A public utility itself may also pursue a rate change in a “Section 205”
    proceeding, and FERC has the power to determine whether the proposed rate
    is lawful and thus will take effect. Id. § 824d(d)-(e). If the public utility seeks
    to increase the rate, it bears the burden of proof to demonstrate that the
    increase is just and reasonable. Id. § 824d(e).
    II. Entergy System Agreement and Bandwidth Remedy
    Entergy is a public utility holding company that sells electricity in
    Arkansas,    Louisiana,     Mississippi,    and   Texas    through     six   operating
    subsidiaries. 1 See La. Pub. Serv. Comm’n v. FERC, 
    522 F.3d 378
    , 383 (D.C.
    Cir. 2008) (“La. 2008”). The operating companies collaborate for their mutual
    benefit and their generation and transmission facilities, although individually
    owned, are operated as a single electric system (“System”). 
    Id. at 383-84, 394
    .
    Transactions among the six operating companies are governed by the System
    Agreement, a FERC-approved tariff that “acts as an interconnection and
    pooling agreement for the energy generated in the System and provides for the
    joint planning, construction and operation of new generating capacity in the
    1 At the time the Bandwidth remedy was imposed, Entergy had only five operating
    companies: Entergy Arkansas, Inc.; Entergy Mississippi, Inc.; Entergy Gulf States, Inc.;
    Entergy Louisiana, LLC; and Entergy New Orleans, Inc. At the end of 2007, Entergy Gulf
    States was split into Entergy Texas, Inc. and Entergy Gulf States Louisiana, L.L.C.
    2
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    System.” 
    Id. at 383
    ; see also Entergy La., Inc. v. La. Pub. Serv. Comm’n, 
    539 U.S. 39
    , 42 (2003). New generating capacity is added to the System on a
    rotating basis, and because each operating company bears the costs of the
    generation facilities in its jurisdiction, “the rotation of new plants throughout
    the System historically had the effect of roughly evening out investment costs
    over time among the operating companies.” La. 2008, 
    522 F.3d at 384
    .
    Although this rotation system prevented substantial deviations in
    operating costs between the subsidiaries for the first thirty years of the
    System’s existence, the arrangement faltered in the early 1980s when Entergy
    Mississippi incurred billions of dollars in unanticipated costs in connection
    with its construction of a nuclear power plant. 
    Id.
     FERC interpreted the
    System Agreement to require that production costs be “roughly equal” among
    the operating companies and ordered nuclear-investment equalization to
    remedy the disparity. 
    Id.
     Production costs again diverged dramatically in the
    early 2000s when a spike in natural gas prices rendered electricity production
    more expensive for Entergy Louisiana, which relies more heavily on gas
    generation than its sister companies. 
    Id. at 385
    . FERC again concluded that
    the System was “out of rough production cost equalization” and imposed a
    “bandwidth remedy.” 
    Id. at 388-89
     (internal quotation marks omitted).
    The bandwidth remedy establishes outer boundaries of +/-11% by which
    production costs may deviate from the System average.            
    Id. at 387-89
    .
    Pursuant to this remedial measure, each calendar year the production costs of
    each operating company are calculated and, if necessary, “payments [are] made
    by the low cost Operating Company(ies) to the high cost Operating
    Company(ies) such that, after reflecting the payments and receipts, no
    Operating Company would have production costs more than 11 percent above
    the Entergy System average or more than 11 percent below the Entergy
    System average.” La. Pub. Serv. Comm’n v. Entergy Servs., Inc., 
    146 FERC ¶ 3
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    61,152 at P 3 (2014). The D.C. Circuit found that FERC had jurisdiction to
    allocate production costs among the operating companies, and upheld the
    bandwidth remedy as a reasonable exercise of the agency’s discretion. La.
    2008, 
    522 F.3d at 389, 391
    .
    III. Bandwidth-Related Proceedings
    A. Bandwidth Remedy Compliance Filings
    In conjunction with its legislation of the bandwidth remedy, FERC
    directed Entergy to implement the remedy into the System Agreement. La.
    Pub. Serv. Comm’n v. Entergy Servs., Inc., 
    111 FERC ¶ 61,311
     (2005) (“Op. No.
    480”), on reh’g, 
    113 FERC ¶ 61,282
     (2005) (“Op. No. 480-A”).                     Entergy
    submitted amendments to the System Agreement, which FERC accepted with
    modifications. See La. Pub. Serv. Comm’n v. Entergy Servs., Inc., 
    117 FERC ¶ 61,203
     (2006) (“2006 Compliance Order”), on reh’g and compliance, 
    119 FERC ¶ 61,095
     (2007), pet. for review denied, La. Pub. Serv. Comm’n v. FERC, 341
    Fed. App’x. 649 (D.C. Cir. 2009). Entergy modified “Service Schedule MSS-3”
    to prescribe a formula for calculating the production costs of the operating
    companies, which are then compared to the System average to determine
    whether a variation of greater than 11 percent from the average exists, and
    thus whether any rough production cost equalization payments are owed. See
    Service Schedule MSS-3, Sec. 30.12 (formula for determining actual production
    costs); 
    id.
     Sec. 30.13 (formula for determining average production costs); 2006
    Compliance Order, 
    117 FERC ¶ 61,203
     at PP 23-27. 2 Service Schedule MSS-3
    also specifies that in populating the actual production cost formula inputs: “All
    Rate Base, Revenue and Expense items shall be based on the actual amounts
    2  The formula rate methodology is based on Exhibits 26 and 28 that Entergy submitted
    in the bandwidth remedy proceeding. Exhibit 26 compared historical production costs of the
    operation companies for 1983-2002 and Exhibit 28 was a production cost analysis for
    September 2001 through August 2002 that detailed the figures supporting the data in Exhibit
    26.
    4
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    on the Company’s books for the twelve months ending December 31 of the
    previous year as reported in FERC Form 1 or such other supporting data as
    may be appropriate for each Company . . . .” Service Schedule MSS-3, Sec.
    30.12, n.1. 3
    B. Annual Bandwidth Implementation Proceedings
    As required by FERC, Entergy must annually file its rates calculated
    from Service Schedule MSS-3 and any bandwidth payments and receipts
    derived therefrom.        These compliance filings implement the bandwidth
    formula using the prior calendar year’s production costs.
    1. First Bandwidth Proceeding
    FERC scheduled the first annual bandwidth payment for June of 2007
    and Entergy initiated the first bandwidth proceeding in May of 2007. On
    exceptions to many of the ALJ’s findings, FERC clarified, as relevant here, that
    “the bandwidth formula in Service Schedule MSS-3 is the lawful rate,” and
    that “amendments to correct errors or deficiencies . . . in the underlying
    methodology” could not be raised in an annual implementation proceeding.
    Entergy Servs., Inc., 
    130 FERC ¶ 61,023
     at PP 12, 170, 245 (2010) (“Op. No.
    505”), on reh’g, 
    139 FERC ¶ 61,103
     (2012) (“Op. No. 505–A”). LPSC and
    Entergy each filed still-pending petitions for review of FERC’s orders related
    to the first bandwidth proceeding in the D.C. Circuit.
    2. Second Bandwidth Proceeding
    Entergy initiated the second bandwidth proceeding in May of 2008.
    FERC again heard exceptions to the ALJ’s rulings on various issues, including
    the proper scope of bandwidth proceedings. Entergy Servs. Inc., 
    137 FERC ¶ 61,029
     (2011) (“Op. No. 514”), reh’g denied, 
    142 FERC ¶ 61,013
     (2013) (“Op.
    3FERC Form 1 is the annual report FERC requires large electric utilities to file each
    April. See 
    18 C.F.R. § 141.1
    .
    5
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    No. 514–A”).   LPSC appealed FERC’s orders to the Fifth Circuit and, as
    discussed infra, a panel of this court denied FERC’s petition for review. La.
    Pub. Serv. Comm’n v. FERC, 
    761 F.3d 540
     (5th Cir. 2014) (“Second Bandwidth
    Decision”).
    3. Third Bandwidth Proceeding
    The third bandwidth proceeding began in May of 2009. The ALJ ordered
    issues related to certain depreciation inputs removed from the proceeding
    based on FERC’s ruling in Op. No. 505 that the reasonableness of expense
    inputs cannot be litigated in annual bandwidth filings. FERC upheld the ALJ’s
    removal order on interlocutory appeal. See Entergy Servs., Inc., 
    130 FERC ¶ 61,170
     (2010) (“Third Bandwidth Interlocutory Order”). After completing the
    hearing, the ALJ ruled that casualty loss ADIT recorded in bandwidth-eligible
    accounts is to be included in the bandwidth calculation. Entergy Servs., Inc.,
    
    132 FERC ¶ 63,005
     at PP 275-77 (2010) (“Third Bandwidth Initial Decision”).
    FERC affirmed the ALJ’s decision in relevant respects and those orders are
    now on review in this petition. See Entergy Servs., Inc., 
    139 FERC ¶ 61,105
    (2012) (“Op. No. 518”), on reh’g, 
    145 FERC ¶ 61,047
     (2013) (“Third Bandwidth
    Rehearing Order”).
    4. Fourth Bandwidth Proceeding
    Entergy initiated the fourth bandwidth proceeding in May of 2010.
    FERC set the matter for hearing and LPSC raised a number of issues that it
    had raised in previous bandwidth proceedings, such as treatment of certain
    ADIT and depreciation inputs. Entergy Servs., Inc., 
    132 FERC ¶ 61,065
     at P
    15 (2010), on reh’g, 
    137 FERC ¶ 61,019
     (2011) (“Fourth Bandwidth Rehearing
    Order”). After further clarification from FERC, Entergy Servs., Inc., 
    145 FERC ¶ 61,049
     (2013) (“Fourth Bandwidth Clarification Order”), the ALJ issued an
    initial decision in the fourth bandwidth proceeding on September 19, 2014,
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    Entergy Servs., Inc., 
    148 FERC ¶ 63,015
     (2014) (“Fourth Bandwidth Initial
    Decision”).
    5. Further Bandwidth Proceedings
    The fifth, sixth, and seventh annual bandwidth proceedings (filed in May
    of 2011, 2012, and 2013, respectively) remain pending before FERC, which has
    held the matters in abeyance pending resolution of the earlier bandwidth
    proceedings. See Entergy Servs., Inc., 
    136 FERC ¶ 61,057
     at P 21 (2011);
    Entergy Servs., Inc., 
    140 FERC ¶ 61,111
     at P 32 (2012); Entergy Servs., Inc.,
    
    144 FERC ¶ 61,167
     at P 30 (2013).
    C. Complaint Proceedings
    LPSC and the Arkansas Public Service Commission (APSC) have also
    filed complaints with FERC outside of the annual bandwidth proceedings
    under Section 206 (and purportedly under Section 205) of the FPA challenging
    the bandwidth formula.
    1. Scope Complaint (2008)
    Before the administrative hearing in the first bandwidth proceeding,
    LPSC filed a complaint challenging Entergy’s methodology and the inputs used
    to calculate the operating companies’ production costs. FERC dismissed all
    issues “covering methodology deviation and the justness and reasonableness of
    cost inputs” because they were currently before FERC in the first bandwidth
    proceeding and there was “no need to establish a separate proceeding to
    address them.” La. Pub. Serv. Comm’n v. Entergy Corp., 
    124 FERC ¶ 61,010
    at P 27 (2008) (“Louisiana Complaint”).
    2. Arkansas Complaint (2009)
    After Entergy’s initial bandwidth filing, APSC filed a complaint to
    modify    formula    language    relating   to    depreciation    and    nuclear
    decommissioning expenses. FERC denied the complaint, explaining that the
    formula language was appropriate because FERC “must ensure that the inputs
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    used to calculate the bandwidth are . . . just and reasonable” and “the authority
    to determine the payments under the bandwidth necessarily must include the
    ability to examine the inputs used to calculate the bandwidth.” Ark. Pub. Serv.
    Comm’n, 
    128 FERC ¶ 61,020
     at P 25 (2009) (“Arkansas Complaint”). In its
    October 2011 rehearing order, after ruling on the first two bandwidth
    proceedings, FERC noted that it had issued “clarification in a number of
    orders” since its initial decision, and that modifications to the formula
    methodology in Service Schedule MSS-3 must be made in a separate section
    205 or 206 filing. Ark. Pub. Serv. Comm’n, 
    137 FERC ¶ 61,030
     at P 21 (2011)
    (“Arkansas Rehearing Order”); see also 
    id.
     at P 23 (“If parties believe that the
    methodology in Service Schedule MSS-3 with respect to depreciation expenses
    should be changed, they should file a separate section 206 complaint (or, in the
    case of Entergy, a section 205 filing).”).
    3. Out-of-Period Complaint (2011)
    In 2011, LPSC filed a section 206 complaint to force Entergy to remove
    from the second and third bandwidth calculations costs and expenses that,
    although recorded in relevant FERC accounts for those years, related to
    periods before the bandwidth remedy took effect. FERC denied the complaint
    insofar as it sought retroactive relief on the grounds that such relief would
    require a modification to the bandwidth formula, which is not permitted
    retroactively under the FPA. La. Pub. Serv. Comm’n v. Entergy Corp., 
    139 FERC ¶ 61,102
     at PP 26-27 (2012). FERC held the complaint for prospective
    relief in abeyance. 
    Id.
     at P 28.
    IV. Orders on Review
    LPSC raises two issues on appeal. At the initial hearing in front of the
    ALJ, LPSC argued that certain revenues and expenses should be removed from
    the bandwidth calculation for 2008 because they were not incurred in that test
    year. LPSC also argued that the production cost formula should account for
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    the mid-year acquisition of generation facilities by Entergy Gulf States
    Louisiana and Entergy Arkansas on a partial-year basis. FERC affirmed the
    ALJ’s rulings that Entergy did not have the discretion to exclude out-of-period
    costs or implement partial-year accounting. FERC held that because Service
    Schedule MSS-3 mandates that formula inputs be based on the “actual
    amounts” reported on the operating companies’ FERC Form 1 reports, the
    bandwidth formula does not permit exclusion of out-of-period costs, and only
    allows for assets on the books at the end of the calendar year to be reflected in
    the calculation as though they had existed for the full year. Op. No. 518, 
    139 FERC ¶ 61,105
     at PP 43, 61.        FERC accordingly concluded that LPSC’s
    challenges were challenges to the “justness and reasonableness” of the
    bandwidth formula itself and could not be raised in an annual bandwidth
    proceeding, but must be made through a separate FPA section 206 proceeding.
    
    Id.
     at P 44, 62.     On review, LPSC challenges as arbitrary (1) FERC’s
    interpretation of the tariff as requiring inputs to be the “actual amounts” on
    
    FERC 1
     forms and (2) FERC’s reversal of its interpretation that annual
    bandwidth proceedings could be used to challenge unjust and unreasonable
    cost inputs into the formula.
    FERC also affirmed the ALJ’s ruling that casualty loss deferred taxes
    should be included in the bandwidth calculations for 2008. 
    Id.
     at P 84. LPSC
    challenges this determination on the grounds that (1) it did not receive proper
    notice that casualty ADIT could be included in the production cost formula and
    (2) FERC did not provide a rational basis for its inclusion.
    STANDARD OF REVIEW
    FERC’s orders are reviewed under the Administrative Procedure Act’s
    “arbitrary and capricious” standard. See 
    5 U.S.C. § 706
    (2)(A); La. 2008, 
    522 F.3d at 391
    . To satisfy this standard, FERC “must examine the relevant data
    and articulate a satisfactory explanation for its action including a rational
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    connection between the facts found and the choice made.” Motor Vehicle Mfrs.
    Ass’n of United States, Inc. v. State Farm Mut. Auto Ins. Co., 
    463 U.S. 29
    , 43
    (1983) (internal quotation marks omitted). FERC’s ratemaking decisions are
    entitled to “great deference.” Morgan Stanley Capital Grp. v. Pub. Util. Dist.
    No. 1, 
    554 U.S. 527
    , 532 (2008); see also Pub. Utils. Comm’n of State of Cal. v.
    FERC, 
    254 F.3d 250
    , 254 (D.C. Cir. 2001) (“Because issues of rate design are
    fairly technical and, insofar as they are not technical, involve policy judgments
    that lie at the core of the regulatory mission, our review of whether a particular
    rate design is ‘just and reasonable’ is highly deferential.” (internal quotation
    marks and alterations omitted)). If language in the System Agreement is
    ambiguous, we defer to FERC’s construction of the provision so long as it is
    reasonable. Second Bandwidth Decision, 761 F.3d at 553. In this circuit,
    however, a reviewing court will not defer to FERC’s construction of a tariff
    unless the agency relied on its factual or technical expertise in arriving at its
    interpretation. See id.; Tenn. Gas Pipeline Co. v. FERC, 
    17 F.3d 98
    , 102 (5th
    Cir. 1994).
    DISCUSSION
    I.  FERC reasonably excluded challenges to the “justness and
    reasonableness” of formula inputs from annual bandwidth
    implementation proceedings.
    LPSC first challenges FERC’s rulings that Entergy could not modify cost
    inputs to exclude out-of-period costs or account for the fact that two of the
    operating companies had not owned their newly-acquired plants for a full year.
    As LPSC makes clear, these rulings are not simply a procedural inconvenience,
    because even if LPSC’s underlying grievances are rectified in a complaint
    proceeding, the inputs will be modified only prospectively. See Louisiana Pub.
    Serv. Comm’n v. Entergy Corp., 
    139 FERC ¶ 61,102
     at PP 26-27 (2012); City of
    Anaheim, Cal. v. FERC, 
    558 F.3d 521
    , 523 (D.C. Cir. 2009) (“On its face, §
    206(a) prohibits retroactive adjustment of rates.”). Because the out-of-period
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    costs and facility acquisitions are recorded for the bandwidth year at issue,
    altering the formula inputs prospectively will not allow Entergy Louisiana or
    Entergy     Gulf    States     Louisiana—the        two     LPSC-regulated        operating
    companies—to recover greater equalization payments based on those
    adjustments. 4
    A. FERC reasonably interpreted the System Agreement and
    correctly applied the filed rate doctrine.
    The bandwidth formula as laid out in Service Schedule MSS-3 of the
    System Agreement is the existing filed rate under the FPA. Second Bandwidth
    Decision, 761 F.3d at 555; Op. No. 514, 
    137 FERC ¶ 61,029
     at P 49 (“[FERC]
    already found the formula rate contained in Service Schedule MSS-3 to be just
    and reasonable when it approved that formula as being in compliance with
    Opinion No. 480. Because [FERC] has approved the formula, it is the filed rate
    . . . .” (footnote omitted)); see also Pub. Utils. Comm’n of State of Cal. v. FERC,
    
    254 F.3d 250
    , 254 & n.3 (D.C. Cir. 2001) (“[A] formula rate specifies the cost
    components that form the basis of the rates a utility charges its customers”
    and “the formula itself is the filed rate that provides sufficient notice to
    ratepayers.”). Under the filed rate doctrine, “[t]he rate filed by the wholesale
    seller of electricity or fixed by FERC is the only lawful charge and deviation
    from it is not permitted upon any pretext.” California ex rel. Lockyer v. FERC,
    
    383 F.3d 1006
    , 1012 (9th Cir. 2004) (internal quotation marks and alteration
    omitted); see also Montana-Dakota Utils. Co. v. Nw. Pub. Serv. Co., 
    341 U.S. 246
    , 251-52 (1951). Not only must utilities adhere to the filed rate, but “[FERC]
    itself has no power to alter a rate retroactively.” Ark. La. Gas Co. v. Hall, 453
    4  It follows that the lower the bandwidth payments to the Louisiana entities, the more
    Louisiana consumers will likely be forced to pay for electricity. See La. Pub. Serv. Comm’n,
    
    539 U.S. at 42
     (noting that, because state regulators allow utility companies to recover their
    costs and a reasonable rate of return, “the cost allocation between operating companies is
    critical to the setting of retail rates.”).
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    60874 U.S. 571
    , 578 (1981). Even where FERC finds an existing rate to be unjust and
    unreasonable under the FPA, its replacement rate applies only prospectively.
    See 
    id.
    FERC has interpreted the bandwidth formula in the System Agreement
    to require that cost inputs be populated with the actual data on the operating
    companies’ books for each year as reported in their 
    FERC 1
     forms. See, e.g.,
    Op. No. 505, 
    130 FERC ¶ 61,023
     at P 171 (“[F]or calculating the 2006
    production payments to be made in 2007, section 30.12 of Service Schedule
    MSS-3 mandates that Entergy use the actual data that exists on the Operating
    Companies’ books for 2006.”)        Accordingly, FERC has concluded that
    adjustments to the formula inputs are adjustments to the bandwidth formula
    itself, and because the formula is the filed rate, challenges to the justness and
    reasonableness of the inputs cannot be raised in an annual bandwidth filing,
    but must instead be brought in a separate rate change proceeding. See, e.g.,
    Third Bandwidth Interlocutory Order, 
    130 FERC ¶ 61,170
     at P 20 (“[T]he
    purpose of the annual bandwidth filings is to apply the specified formula using
    actual data to determine whether or not there was rough equalization, and not
    to determine what production costs would have been if different depreciation
    rates had been in effect for the relevant period.”); Fourth Bandwidth
    Clarification Order, 
    145 FERC ¶ 61,049
     at P 6 (“[T]he focus of litigation in the
    annual bandwidth filings is whether Entergy properly implemented the
    bandwidth formula, not whether the bandwidth formula is just and
    reasonable.”). FERC has explained that the scope of challenges in annual
    bandwidth proceedings is limited to: “(1) whether the inputs were calculated
    consistent with the formula and the applicable accounting rules; (2)
    conformance with retail regulatory approvals . . . [;] and, (3) in instances where
    there are details omitted from the accepted Service Schedule MSS-3 formula,
    [whether Entergy’s calculations comply] with the underlying details included
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    in the methodology used in Exhibits ETR-26 and ETR-28,” as well as “the
    prudence of cost inputs to the bandwidth formula.”            Fourth Bandwidth
    Rehearing Order, 
    137 FERC ¶ 61,019
     at P 13.
    FERC’s determination that the System Agreement mandates that
    Entergy use actual data on the companies’ books is based on Footnotes 1 and
    2 in Section 30.12 of Service Schedule MSS-3. Footnote 1 provides that: “All
    Rate Base, Revenue and Expense items shall be based on the actual amounts
    on the Company’s books for the twelve months ending December 31 of the
    previous year as reported in FERC Form 1 or such other supporting data as
    may be appropriate for each Company . . . .” Footnote 2 likewise specifies that:
    “Rate Base values shall be based on the actual balances on the Company’s
    books as of December 31 of the previous year . . . .” LPSC raises a number of
    challenges to FERC’s interpretation of the System Agreement, but does not
    opine on whether FERC relied on its technical expertise to reach it. In any
    case, with or without special deference, FERC’s interpretation is clearly not
    arbitrary.
    LPSC argues in the first instance that FERC’s interpretation reads out
    of Footnote 1 the clause “or such other supporting data as may be appropriate
    for each Company.” LPSC asserts that this other “supporting data” alternative
    permits it to challenge the justness and reasonableness of formula inputs in a
    bandwidth proceeding if they are not reflective of the company’s actual costs in
    the test year. But Footnote 1 does not state that formula inputs will be based
    on an operating company’s actual costs. The provision plainly states that
    inputs “shall be based on the actual amounts on the Company’s books” for the
    prior year. These amounts are determined by reference to FERC Form 1 or
    other supporting data.     Thus,     FERC could reasonably find that “other
    supporting data” is useful only insofar as it can be used to ascertain “actual
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    amounts on the Company’s books” for the test year that were not included (or
    not included in a useful form) or were misrepresented in FERC Form 1.
    Further, in the Second Bandwidth Decision, a panel of this circuit
    recently rejected LPSC’s argument that it could challenge formula inputs as
    unjust or unreasonable in annual bandwidth proceedings. The specific issue
    in that case was whether FERC could modify depreciation rates set by retail
    regulators and incorporated into the bandwidth formula. As it did with the
    inputs at issue here, FERC concluded that the challenge to the state
    depreciation input constituted a challenge to the bandwidth formula itself that
    could not be raised in an annual bandwidth proceeding. This court found that
    “[t]he System Agreement reflects a decision to incorporate actual costs reflected
    on FERC Form 1 into the formula.” Second Bandwidth Decision, 761 F.3d at
    555 (emphasis added). It agreed with FERC that supplanting the retail-set
    depreciation inputs would change the bandwidth formula and that such an
    “attack on the formula” in the bandwidth proceeding violated the filed-rate
    doctrine and thus was not valid. Id.
    As this court concluded in the Second Bandwidth Decision, FERC’s
    interpretation that the bandwidth formula requires inputs based on actual
    
    FERC 1
     data is a plain reading of the System Agreement—specifically,
    Footnotes 1 and 2 to Service Schedule MSS-3—and is not arbitrary or
    irrational. “Unlike FERC’s interpretation, [LPSC]’s interpretation undercuts
    th[e] remedial scheme in favor of a yearly reconstruction of each company’s
    costs in the bandwidth proceedings.”        
    Id.
       Although LPSC protests that
    prohibiting challenges to the justness and reasonableness of formula inputs in
    annual bandwidth proceedings will leave consumers without a complete
    remedy, “the absence of retroactive relief is a function of the filed-rate
    doctrine.” 
    Id. at 556
    . Therefore, regardless of the merits of LPSC’s underlying
    challenges to the reasonableness of the formula inputs, it could not seek to
    14
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    No. 13-60874
    modify the definition of those inputs in the third bandwidth proceeding. LPSC
    does not contend that Entergy failed to use the FERC Form 1 values as
    prescribed in the System Agreement or that it made a calculation error
    implementing the algebraic equation.       Accordingly, LPSC’s challenges to
    Entergy’s inclusion in the production cost formula of end-of-year rate balances
    for newly-acquired generation plants and out-of-period revenues and expenses
    drawn from the operating companies’ FERC Form 1 filings are not cognizable
    in a bandwidth proceeding.
    B. FERC’s reversal of its initial interpretation of the scope of
    bandwidth implementation proceedings was not arbitrary.
    LPSC also argues that because FERC previously held that it would
    review the justness and reasonableness of cost inputs in the annual bandwidth
    proceedings, its subsequent decision “without explanation” to exclude such
    review in the proceedings was arbitrary. It is true that, in two of its early
    orders, FERC stated that challenges to the formula inputs could be raised at
    the annual bandwidth proceedings, and even dismissed part of LPSC’s 2008
    Scope Complaint on that ground.            But FERC corrected its previous
    interpretation in its very first ruling on an annual bandwidth proceeding. Op.
    No. 505, 
    130 FERC ¶ 61,023
     at PP 172-73. As this court found in the Second
    Bandwidth Decision, “FERC changed its interpretation in light of its gained
    experience conducting annual bandwidth proceedings, explained its new
    interpretation of the System Agreement, and consistently has interpreted the
    System Agreement after the change.” 761 F.3d at 556. “Here, FERC offered a
    reasoned explanation for its approach; no more is required.” Id. (internal
    quotation marks and alteration omitted).
    LPSC continues that FERC’s attempts at clarification were beset by
    inconsistency and that the agency has now “shift[ed] back” to its original
    interpretation. LPSC points to the Fourth Bandwidth Clarification Order’s
    15
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    No. 13-60874
    statement that “challenges in a bandwidth proceeding can include whether the
    formula was misapplied or miscalculated because the inputs were unjust and
    unreasonable.” 
    145 FERC ¶ 61,049
     at P 14. 5 Although this statement in
    isolation could be read to support LPSC’s reversion argument, it loses its force
    when considered in context. In responding to LPSC’s request that FERC
    “clarify what it meant by limiting the bandwidth challenges to the prudence of
    cost inputs” in the Fourth Bandwidth Rehearing Order, 
    id.
     at P 13, FERC
    stated:
    The Rehearing Order provided that parties can challenge whether
    the inputs were calculated consistent with the formula and the
    applicable accounting rules. As part of its determination, the
    Commission also stated that “with respect to whether or not
    particular costs were prudently incurred,” parties can challenge
    the prudence of those cost inputs. We clarify that challenges that
    may be raised in a bandwidth implementation proceeding to the
    “inputs” used in the bandwidth formula include misapplication of
    the formula rate (such as use of erroneous data or incorrect
    calculations), which includes the prudence of a cost input. On this
    basis, the Rehearing Order did not limit challenges to “the
    prudence of cost inputs.” Instead, challenges in a bandwidth
    proceeding can include whether the formula was misapplied or
    miscalculated because the inputs were unjust and unreasonable.
    However, challenges to the formula itself, not the inputs, must be
    brought in an FPA section 205 or section 206 proceeding.
    
    Id.
     at P 14 (emphasis added) (footnotes omitted).
    In explaining that the Fourth Bandwidth Rehearing Order did not “limit”
    challenges at the annual bandwidth proceedings to the prudence of cost
    5  LPSC raised this same reversion argument based on the Fourth Bandwidth
    Rehearing Order in the Second Bandwidth Decision. Although not specifically addressed in
    that opinion, given the panel’s conclusion that FERC has interpreted the System Agreement
    consistently since the first bandwidth proceeding, that panel evidently also found LPSC’s
    claim unpersuasive.
    16
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    inputs, 6 FERC repeated its instruction that challenges may be made to the
    “misapplication of the formula rate (such as use of erroneous data or incorrect
    calculations).” 
    Id.
     FERC continued that such challenges included, but were
    not limited to, the prudence of cost inputs. 
    Id.
     Accordingly, FERC’s statement
    that challenges “can include whether the formula was misapplied or
    miscalculated because the inputs were unjust and unreasonable” related to the
    just-referenced input of erroneous data or incorrect calculations, not to the
    merits of including each formula input itself. See 
    id.
     This reading is consistent
    with other statements in the order. See 
    id.
     at P 12 (“[P]arties can challenge in
    a bandwidth proceeding erroneous inputs, implementation errors, or prudence
    of cost inputs. However, challenges to the bandwidth formula itself must be
    raised in an FPA section 206 complaint or section 205 filing.”). In any case,
    ambiguity in the use of the phrase “unjust and unreasonable” in the Fourth
    Bandwidth Clarification Order is not sufficient to cast doubt on the litany of
    FERC orders clarifying that formula inputs may be challenged for incorrect
    data, faulty math, and imprudent expenditures—not for whether the cost
    variables themselves should be included in the formula. 7 See, e.g., Op. No. 505,
    
    130 FERC ¶ 61,023
     at PP 172-73; Op. No. 505-A, 
    139 FERC ¶ 61,103
     at P 50;
    6  A cost is prudent if it is one that “a reasonable utility management (or that of another
    jurisdictional entity) would have made, in good faith, under the same circumstances, and at
    the relevant point in time.” Op. No. 505, 
    130 FERC ¶ 61,023
     at P 51 (citation omitted). LPSC
    previously understood that “imprudence occurs when it is determined that a utility acted
    unreasonably when incurring a cost, and that an imprudent cost is an unreasonable cost that
    violates the just and reasonable standard of the Federal Power Act.” Entergy Servs., Inc.,
    
    137 FERC ¶ 61,019
     at P 6 (2011). Insofar as LPSC is now contending that it understands
    imprudence to allow challenges to any perceived unjust cost input, such an interpretation is
    unreasonable.
    7 LPSC also cites a recent order of an ALJ that cites the “unjust and unreasonable”
    language from the Fourth Bandwidth Clarification Order. See Fourth Bandwidth Initial
    Decision, 
    148 FERC ¶ 63,015
     at PP 33, 39. To the extent the ALJ interpreted FERC as
    permitting challenges to formula inputs outside of faulty math, erroneous data, or imprudent
    expenditures, this was inconsistent with FERC’s position for the reasons described above.
    We also note that the ALJ’s decision has not yet been reviewed by FERC.
    17
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    Op. No. 514, 
    137 FERC ¶ 61,029
     at P 48; Third Bandwidth Interlocutory Order,
    
    130 FERC ¶ 61,170
     at P 20; Op. No. 518, 
    139 FERC ¶ 61,105
     at PP 25-26;
    Fourth Bandwidth Rehearing Order, 
    137 FERC ¶ 61,019
     at PP 11-12;
    Arkansas Rehearing Order, 
    137 FERC ¶ 61,030
     at PP 21-23.
    LPSC’s petition for rehearing of FERC’s order that LPSC cannot
    challenge the justness and reasonableness of including certain cost inputs in
    the bandwidth formula during an annual bandwidth proceeding is denied.
    II. FERC reasonably required Entergy to include casualty loss ADIT
    in its third bandwidth calculation.
    LPSC next claims that FERC’s ruling that Entergy must include
    casualty loss ADIT in its third bandwidth calculation (1) violated due process
    and statutory notice requirements and (2) is arbitrary because FERC failed to
    provide a rational explanation for its inclusion.
    ADIT is defined in the bandwidth formula as:
    ADIT = Net Accumulated Deferred Income Taxes (ADIT) recorded
    in FERC Accounts 190, 281 and 282 (as reduced by amounts not
    generally and properly includable for FERC cost of service
    purposes, including but not limited to, SFAS 109 ADIT amounts
    and ADIT amounts arising from retail ratemaking decisions) plus
    Accumulated Deferred Income Tax Credit-3% portion only
    recorded in FERC Account 255[.]
    Service Schedule MSS-3, Sec. 30.12.
    In its third bandwidth filing, Entergy excluded from the operating
    companies’ production cost calculations ADIT associated with both net
    operating losses (NOL) and casualty losses, recorded in FERC accounts 190
    and 282, respectively. A NOL is an “income tax benefit that may be carried
    forward to future years and treated as an offset to future years’ taxable
    income.”   Entergy Servs., Inc., 
    145 FERC ¶ 61,045
     at P 3 n.10 (2013). As
    LPSC’s witness testified in the third bandwidth proceeding, the NOL ADIT
    amounts in account 190 “represent the tax benefits that the operating
    18
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    No. 13-60874
    companies have not yet been able to realize because of insufficient taxable
    income.” Thus, this is an asset ADIT account that generally increases the rate
    base. In contrast, the casualty loss ADIT in account 282 is a liability account
    that generally decreases the rate base.
    An Entergy witness testified at the third bandwidth hearing that
    Entergy’s exclusion of NOL ADIT was consistent with Entergy’s treatment of
    NOL ADIT in its two previous bandwidth filings. Casualty loss ADIT was not
    an issue in the prior filings because those amounts were previously recorded
    in account 283, which the System Agreement did not specify for use in the
    bandwidth formula. Prior to the third bandwidth filing, however, Entergy
    reclassified certain ADIT amounts, including casualty loss taxes, into account
    282, which is included in the bandwidth calculation.             Entergy’s third
    bandwidth filing letter explained this reclassification, and the parties agreed
    in the Joint Statement of Issues that there was no dispute as to the propriety
    of the account reclassification.
    After Entergy submitted its third bandwidth filing, FERC issued Op. No.
    505, in which FERC, siding with LPSC, reversed the ALJ’s decision that
    Entergy could exclude from the first bandwidth filing all NOL ADIT amounts.
    
    130 FERC ¶ 61,023
     at PP 233-34. FERC explained that, “[t]o the extent storm
    damage costs are amortized to expense accounts included in the bandwidth
    calculation (production storm damage expense), such costs are included in a
    [FERC] cost-of-service rate. Therefore, consistent with Service Schedule MSS-
    3, ADIT for NOL carryforwards associated with production storm damage
    expenses may not be excluded from the bandwidth calculation.” 
    Id.
     at P 234.
    Because of this ruling, one of the issues to be litigated at the third bandwidth
    hearing was what portion of NOL ADIT to include in the bandwidth
    calculation.
    19
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    In his pre-filed Final Testimony, Entergy witness Bruce Louiselle
    compared the amounts of casualty loss ADIT and NOL ADIT for the operating
    companies to demonstrate that casualty loss ADIT “far exceeds” NOL ADIT.
    Louiselle explained that “[w]hat is important is that [Entergy] excluded both
    the storm-caused NOL ADIT and the storm-caused Casualty Loss ADIT on a
    consistent basis and for the same reason, to wit: such amounts are not
    generally and properly includable for FERC cost of service purposes.” Louiselle
    also testified that LPSC’s proposal “to include the storm-caused NOL ADIT
    recorded in Account 190 but not to include the storm-caused ADIT recorded in
    Account 282” amounted to “‘cherry picking’ which storm-caused tax effects to
    include.” 8 A FERC Trial Staff witness concurred that, if storm-related NOL
    ADIT were included in the calculation, storm-related casualty loss ADIT
    should be included as well.
    Affirming the ALJ’s initial decision, FERC ruled that both NOL ADIT
    and casualty loss ADIT that are properly includable for cost-of-service
    purposes should be included in the bandwidth calculation. Op. No. 518, 
    139 FERC ¶ 61,105
     at P 84. FERC rejected Entergy’s argument that Op. No. 505
    required that “only that portion of storm-related ADIT which is attributable to
    production may be included in the Bandwidth calculation.”                       
    Id.
     at P 87
    (alteration and internal quotation marks omitted). FERC explained that:
    The Net Operating Loss carry-forwards are the result of a
    calculation that combines all the revenues and expenses of
    Entergy. The Net Operating Loss is made up of many expenses,
    none of which, in isolation, can be considered the singular cause of
    the Net Operating Loss. Therefore, attributing ADIT related to the
    Net Operating Loss to a particular expense or function in isolation
    8  In addition to his pre-filed testimony, Louiselle also testified on redirect testimony
    at the hearing that if the ALJ or FERC included NOL ADIT, there is “no logical reason” not
    to also include casualty loss ADIT.
    20
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    is arbitrary because the Net Operating Loss is not created by any
    single category of expenses. . . .
    [T]o properly include Net Operating Loss ADIT amounts in
    bandwidth calculations, Entergy must multiply its Net Operating
    Loss carry-forward balance by the ratio of incurred expenses
    includable for [FERC] cost-of-service purposes to total expenses
    incurred during the period the Net Operating Loss was recognized.
    ADIT related to the calculated Net Operating Loss carry-forward
    balance to be included in the bandwidth calculations must then be
    allocated to the production function in the bandwidth formula
    using the plant ratios as prescribed by Service Schedule MSS-3.
    
    Id.
     at P 85 (quoting Op. No. 505-A, 
    139 FERC ¶ 61,103
     at P 59-60).
    LPSC requested clarification as to whether Entergy was required to use
    the NOL ADIT ratio laid out in Op. No. 518 to also determine the amount of
    casualty loss ADIT to include in the bandwidth calculation. FERC clarified
    that:
    Entergy is not required to use the net operating loss ADIT ratio to
    determine the amount of casualty loss ADIT to include in
    bandwidth calculations. Instead, Entergy must include all the
    casualty loss ADIT amounts in bandwidth calculations without
    applying the net operating loss ADIT ratio, and Entergy must
    functionalize the casualty loss ADIT amounts to production based
    on plant ratios, in accordance with the provisions of the bandwidth
    formula.
    Third Bandwidth Rehearing Order, 
    145 FERC ¶ 61,047
     at P 22.                FERC
    explained that, “[i]n comparison to the inability to attribute specific expenses
    to the cause of the net operating loss, the cause of the casualty loss is directly
    attributable to expenses incurred due to storm damages.” 
    Id.
     at P 24. FERC
    noted that “[n]either the [LPSC] nor Entergy contest that the casualty loss is
    not the result of storm damages.” 
    Id.
    A. LPSC had notice of the casualty loss ADIT issue.
    LPSC first claims that it did not receive notice that casualty loss ADIT
    would be included in the bandwidth formula, in violation of the APA and its
    21
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    due process rights. See 
    5 U.S.C. § 554
    (b)(3) (agency shall give parties notice of
    “the matters of fact and law asserted”); Pub. Serv. Comm’n v. FERC, 
    397 F.3d 1004
    , 1012 (D.C. Cir. 2005) (“The Due Process Clause and the APA require that
    an agency setting a matter for hearing provide parties with adequate notice of
    the issues that would be considered, and ultimately resolved, at that hearing.”
    (internal quotation marks omitted)). LPSC argues that FERC violated its
    notice obligation because Entergy did not propose to include—and in fact,
    specifically excluded—casualty loss ADIT from its third bandwidth calculation
    in its filing letter. 9
    LPSC is correct that Entergy’s filing letter identified that it did not
    include casualty loss ADIT in its bandwidth calculation, but LPSC’s conclusion
    that this statement prevented it from receiving notice of the issue completely
    omits the context in which it was made. As discussed above, the System
    Agreement provides that ADIT amounts recorded in accounts 190 and 282 that
    are generally and properly includable for FERC cost-of-service purposes should
    be included in the bandwidth formula. Entergy’s filing letter acknowledged
    that casualty loss ADIT had been moved into account 282, but stated that, like
    NOL ADIT, casualty loss ADIT was not included in the bandwidth calculation
    because it was “storm-related.” After Entergy submitted its filing letter, FERC
    issued Op. No. 505, which, in response to LPSC’s challenge, held that Entergy
    must include storm-related NOL ADIT in eligible accounts in the bandwidth
    formula. See Op. No. 505, 
    130 FERC ¶ 61,023
     at PP 233-34.                     Accordingly,
    LPSC was certainly on notice that Entergy’s justification for excluding
    casualty loss ADIT—that it was “due to storm losses”—was no longer valid and
    9 FERC argues that LPSC has waived its due process argument because it did not
    specifically raise it on rehearing. But LPSC certainly pressed its lack-of-notice argument,
    which is the basis for its denial of due process claim. Although LPSC has repackaged its
    claims as due process violations, it is not raising in the instant petition any argument that
    was not previously considered by FERC.
    22
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    that FERC, consistent with its ruling in Op. No. 505, could require Entergy to
    include casualty loss ADIT in the formula. Indeed, Entergy submitted pre-
    filed testimony that NOL ADIT and casualty loss ADIT were excluded on the
    same basis, and, consequently, including the former but not the latter would
    constitute “cherry-picking.”
    The amount of NOL ADIT to be included in the bandwidth formula was
    listed as an issue to be litigated in the bandwidth hearing. Multiple witnesses,
    including LPSC’s own, were questioned about casualty loss ADIT in connection
    with NOL ADIT. Although it may have been strategic for LPSC to avoid the
    issue in an attempt to keep casualty loss ADIT out of the formula, that LPSC
    was ultimately unsuccessful in doing so does not indicate that it lacked notice
    that the ALJ or FERC would require inclusion of those deferred taxes
    consistent with Op. No. 505. See Op. No. 518, 
    139 FERC ¶ 61,105
     at P 91
    (finding LPSC had “ample opportunity” to address the casualty loss ADIT issue
    during the hearing). LPSC’s notice argument is meritless.
    B. FERC’s decision to include casualty loss ADIT in the
    bandwidth formula was rational.
    LPSC finally argues that FERC’s requirement that Entergy include all
    casualty loss ADIT amounts in the bandwidth calculation is void because (1)
    FERC’s decision to include storm-related casualty loss ADIT conflicts with one
    of its earlier decisions; and (2) there is no rational basis to include all of the
    recorded casualty loss ADIT but only a portion of the NOL ADIT.
    LPSC first protests that FERC’s inclusion of storm-related casualty loss
    ADIT in the bandwidth calculation departs without explanation from FERC’s
    prior order approving a settlement excluding storm cost accruals in account
    924 from the bandwidth calculation because “storm damage reserve is largely
    unrelated to production costs.” Entergy Servs., Inc., 
    128 FERC ¶ 61,275
     at P
    28 (2009). This contention fails for a number of reasons. First, it was not
    23
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    raised before FERC and thus cannot be considered here. See 16 U.S.C. §
    825l(b) (“No objection to the order of [FERC] shall be considered by the court
    unless such objection shall have been urged before [FERC] in the application
    for rehearing unless there is reasonable ground for failure so to do.”). Second,
    FERC’s approval of a settlement does not have precedential effect. Entergy
    Servs., Inc., 
    128 FERC ¶ 61,275
     at PP 8-11; see also Consol. Gas. Supply Corp.,
    
    14 FERC ¶ 61,291
     at P 61,567 (1981) (“It is [FERC’s] well established policy
    that settlements do not have precedential effect.”).       Third, LPSC’s broad
    assertion that Op. No. 518 conflicts with FERC’s “earlier determination that
    storm-related costs should not be included in the Bandwidth Calculation” is
    selective, if not disingenuous. As discussed above, LPSC challenged the ALJ’s
    decision in the first bandwidth proceeding excluding NOL ADIT amounts from
    the bandwidth calculation. FERC agreed with LPSC and determined that
    storm damage costs (resulting from Hurricanes Katrina and Rita) amortized
    in bandwidth-eligible expense accounts are included in FERC’s cost-of-service
    rate and must be included in the calculation. Op. No. 505, 
    130 FERC ¶ 61,023
    at P 234. The ALJ relied on Op. No. 505 in finding that storm damage expenses
    attributable to production are properly includable for cost-of-service purposes,
    Third Bandwidth Initial Decision, 
    132 FERC ¶ 63,005
     at P 275, and FERC,
    consistent with Op. No. 505, affirmed this determination, Op. No. 518, 
    139 FERC ¶ 61,105
     at P 88. Thus, to the extent that FERC’s initial treatment of
    storm-related costs varies from its current treatment of them, LPSC itself
    brought about this change by challenging the exclusion of such costs in the first
    bandwidth proceeding.
    Finally, FERC thoroughly explained its reasons for including casualty
    loss ADIT amounts in the bandwidth calculation.            FERC stated that its
    decision was based on the plain language of the System Agreement, which
    expressly requires that ADIT amounts recorded in FERC account 282 be
    24
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    included in the bandwidth formula to the extent they are includable for cost-
    of-service purposes. Op. No. 518, 
    139 FERC ¶ 61,105
     at PP 84, 88. Casualty
    loss ADIT—as a result of Entergy’s recent reclassification—was recorded in
    FERC account 282.           
    Id.
     at PP 88, 92.        Storm damage costs included in
    bandwidth-eligible accounts are includable for cost-of-service purposes. 
    Id.
     at
    P 88 (citing Op. No. 505, 
    130 FERC ¶ 61,023
     at P 234). Casualty loss ADIT
    amounts are directly attributable to storm damages.                      Third Bandwidth
    Rehearing Order, 
    145 FERC ¶ 61,047
     at P 24 (explaining that neither LPSC
    nor Entergy disputed that casualty loss is the result of storm damages and that
    Louiselle’s testimony supported this conclusion). 10                 Accordingly, because
    casualty loss ADIT was recorded in a bandwidth-eligible account and was
    generally and properly includable for cost-of-service purposes, 
    FERC 10
     In proceedings related to the fourth bandwidth filing, LPSC argued to the ALJ that,
    in the third bandwidth proceeding, Entergy misled FERC as to the basis for casualty loss
    ADIT. LPSC contended that the testimony of Entergy’s witness in the fourth bandwidth
    proceeding that the casualty loss tax deduction is a difference in the value of the damaged
    property before and after the catastrophic event contradicted Entergy’s testimony in the third
    bandwidth proceeding that the deduction is based on recorded expenses for “internal labor,
    contracted labor, and materials and supplies used to repair or replace damaged property.”
    LPSC argues here that the ALJ “found that casualty Loss ADIT is ‘not based on storm costs
    included in the expense accounts in the bandwidth formula,’ but is ‘the difference in the value
    of damaged property before and after a catastrophic event.’” This is a misrepresentation of
    the ALJ’s findings.       The ALJ rejected LPSC’s argument as to Entergy’s “alleged
    contradiction” and found that LPSC’s claim was the consequence of a “misunderstanding of
    basic tax law.” Fourth Bandwidth Initial Decision, 
    148 FERC ¶ 63,015
     at P 117. As the ALJ
    clearly explained, the casualty loss tax deduction is indeed technically a difference in the
    value of the damaged property, but “[t]he proxy that is properly used for tax purposes to
    represent that differential, since such values are hard to determine, is the cost of repair such
    as the ‘internal labor, contracted labor, and materials and supplies used to repair or replace
    damaged property’ as [Entergy’s witness] testified in the Third Bandwidth Proceeding.” 
    Id.
    at P 118. Thus, contrary to LPSC’s representation here that the ALJ’s findings establish that
    casualty loss ADIT did not result from storm damages costs, the ALJ concluded that the
    storm-related costs are precisely those appropriately used to determine the casualty loss tax
    deduction.
    25
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    reasonably concluded that the System Agreement required its inclusion in the
    bandwidth calculation. 11
    LPSC’s irrationality challenge also fails for this same reason. LPSC
    argues that casualty loss ADIT was included in the bandwidth calculation
    solely because of its “alleged connection to NOL ADIT, based on the premise
    that both were caused by storm costs.” The argument continues that, because
    FERC found that “casualty loss ADIT and net operating loss ADIT are not
    equivalent,” Third Bandwidth Rehearing Order, 
    145 FERC ¶ 61,047
     at P 24,
    the “nexus” between the two disappeared, and including casualty loss ADIT
    was therefore irrational.
    As explained above, FERC’s decision was necessitated by the System
    Agreement, which specifies that deferred taxes (1) recorded in FERC accounts
    190 and 282 and (2) properly includable for cost-of-service purposes must be
    included in the bandwidth formula. In contrast to FERC’s determination that
    all casualty loss ADIT is attributable to storm damages and thus properly
    includable for cost-of-service purposes, FERC found that not all NOL ADIT
    could be attributed to storm damage loss. Third Bandwidth Rehearing Order,
    
    145 FERC ¶ 61,047
     at PP 23-24. FERC explained that “the net operating loss
    is made up of many expenses, none of which, in isolation, can be considered the
    singular cause of the net operating loss.” 
    Id.
     at P 23. Because certain expenses
    associated with NOL ADIT “are not costs includable for [FERC] cost-of-service
    purposes,” FERC requires Entergy to use a FERC-developed ratio to determine
    the amount of NOL ADIT that can be included in the bandwidth calculations.
    
    Id.
     In both instances, FERC, consistent with the explicit directive of the
    System Agreement, included only the portion of ADIT “properly includable for
    11 Because the bandwidth formula—the filed rate—includes casualty loss ADIT,
    LPSC’s retroactive ratemaking argument is meritless.
    26
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    cost of service purposes.” See 
    id.
     at P 22.           It was not irrational for FERC to
    refuse to require the use of the net operating loss ratio to determine the amount
    of casualty loss ADIT includable in the bandwidth calculation. See 
    id.
     at P 25
    (“[I]t is unnecessary for Entergy to use the net operating loss ADIT ratio to
    determine casualty loss ADIT amounts to include in bandwidth calculations
    because the expenses associated with the casualty loss are directly attributable
    to storm damage costs . . . .”). 12
    LPSC does not approach the showing needed to demonstrate that
    FERC’s order to include all casualty loss ADIT amounts in bandwidth-eligible
    accounts in the production cost formula was irrational. This is especially so in
    light of the deference given to FERC’s ratemaking decisions. LPSC’s petition
    for review on the issue is denied.
    CONCLUSION
    For the foregoing reasons, LPSC’s petition for review of FERC’s orders
    in the third bandwidth proceeding is DENIED.
    12 LPSC quotes Louiselle’s testimony that “[e]xcept for [Entergy Arkansas], the storm
    costs of the other Operating Companies having federal NOL ADIT are or will be ‘securitized’”
    and these securitized costs “are not included in the cost of service.” LPSC, however, does not
    raise any argument suggesting that casualty loss ADIT is securitized and should not be
    included in the bandwidth calculation. Because LPSC has not briefed the issue, it is waived.
    See Fed. R. App. P. 28(a)(8)(A); United States v. Whitfield, 
    590 F.3d 325
    , 346 (5th Cir. 2009).
    In any case, here, as in front of FERC, LPSC “has not explained how [contra-securitization
    ADIT] amounts arise or demonstrated why they are ‘generally and properly includable for
    FERC cost of service purposes.’” Op. No. 518, 
    139 FERC ¶ 61,105
     at P 89. When LPSC did
    present its argument that casualty loss ADIT should be offset by including formula cost
    entries for contra-securitization ADIT in the fourth bandwidth proceeding, the ALJ noted, as
    relevant here, that “Entergy’s tax expert . . . testified at the [fourth bandwidth] hearing that
    casualty loss tax deductions are not securitized. Thus, the casualty loss ADIT that is included
    in the bandwidth calculation cannot be the corresponding entry to the contra-securitization
    ADIT amounts in question.” Fourth Bandwidth Initial Decision, 
    148 FERC ¶ 63,015
     at P
    258 (footnotes omitted). Likewise, here LPSC has not pointed to any evidence indicating that
    the storm damage costs related to the casualty loss ADIT included in the bandwidth formula
    for the third bandwidth proceeding were securitized. For all of these reasons, any argument
    that LPSC intended to raise related to contra-securitization fails.
    27