Affirmed by published opinion. Judge WILKINSON wrote the opinion, in which Judge KEENAN and Judge DIAZ joined.
At issue is a Maryland program to subsidize the participation of a new power plant in the federal wholesale energy market. Appellees are energy firms that compete with this new plant in interstate commerce. They contend that the Maryland scheme is preempted under the Federal Power Act’s authorizing provisions, which grant exclusive authority over interstate rates to the Federal Energy Regulatory Commission. The district court agreed. For the reasons that follow, we affirm.
I.
A.
For much of the 20th century, the energy market was dominated by vertically integrated firms that produced, transmitted, and delivered power to end-use customers. New York v. FERC,
The Federal Power Act (FPA), passed in 1935, was designed in part to fill the regulatory gap created by the dormant Commerce Clause and cover the then-nascent field of interstate electricity sales. It vеsts the Federal Energy Regulatory Commission (FERC) with authority over the “transmission of electric energy in interstate commerce” and the “sale of electric energy at wholesale in interstate commerce.” 16 U.S.C. § 824(b)(1). Federal regulation has become increasingly prominent as the energy market has shifted away from local monopolies to a system of interstate competition. See New York,
Rather than ensuring the reasonableness of interstate transactions by directly setting rates, FERC has chosen instead to achieve its regulatory aims indirectly by prоtecting “the integrity of the interstate energy markets.” N.J. Bd. of Pub. Utils. v. FERC,
PJM operates both energy and capacity markets. The energy market is essentially a real-time market that enables PJM to buy and sell electricity to distributors for delivery within the next hour or 24 hours.
The capacity market is a forward-loоking market, which gives buyers the option to purchase electricity in the future. In the capacity market, PJM sets a quota based on how much capacity it predicts will be needed three years hence and then relies on a Reliability Pricing Model (RPM) to determine the appropriate price per unit. Auction participants bid to sell capacity for a single year, three years in the future. PJM stacks the bids from lowest to highest and, starting at the bottom, accepts bids until it has acquired sufficient capacity to satisfy its quota.
The highest-priced bid that PJM must accept to meet this quota establishes the market-clearing price. Every generator who bids at or below this level “clears” the market and is paid the clearing price, regardless of the price at which it actually bid. Existing generators are permitted to bid at zero as “price-takers,” meaning they agree to sell at whatever the clearing price turns out to be.
Both the capacity and energy markets are designed to efficiently allocate supply and demand, a function which has the collaterаl benefit of incentivizing the construction of new power plants when necessary. Clearing prices occasionally differ based on geographical subdivisions designed by FERC to stimulate new construction by signaling that certain regions are prone to supply shortages. Such price signals are not the sole mechanism for incentivizing generation, however. PJM’s new entry price adjustment (NEPA) guarantees certain new producers a fixed price for three years to “support ... the new entrant until sufficient load growth [i.e., increased demand] would bе expected to” do so. PJM Interconnection, LLC,
In 2006, FERC instituted a requirement (the minimum offer price rule, or MOPR) that new generators in certain circumstances bid at or above a specified price, fixed according to the agency’s estimation of a generic energy project’s cost. This rule was designed to prevent the manipulation of clearing prices through the exercise of buyer market power. The MOPR originally exempted certain state-sup
Following a complaint lоdged by several competitors, FERC eliminated the exemption for state-sanctioned plants. The new rule required such plants to bid initially at the agency-specified minimum price unless they could demonstrate that their actual costs were lower than this default price. FERC held that this adjustment was necessary to protect the integrity of its markets against below-cost bids by subsidized plants that might artificially suppress clearing prices. See PJM Interconnection, LLC,
As these features suggest, the federal markets are the product of a finely-wrought scheme that attempts to achiеve a variety of different aims. FERC rules encourage the construction of new plants and sustain existing ones. They seek to preclude state distortion of wholesale prices while preserving general state authority over generation sources. They satisfy short-term demand and ensure sufficient long-term supply. In short, the federal scheme is carefully calibrated to protect a host of competing interests. It represents a comprehensive program of regulation that is quite sensitive to external tampering.
B.
In 1999, Maryland decided to abandon the vertical integration model and throw in its lot with the federal interstate markets. Deregulation was accomplished by the Electric Customer Choice and Competition Act, Md.Code Ann., Pub. Utils. § 7-501, et seq., which divested utilities of their generation resources, effectively compelling Maryland energy firms to participate in the federal wholesale markets. See PPL Energyplus, LLC,
Maryland soon became concerned, though, that the RPM was failing to adequately incentivize new generation. PPL Energyplus, LLC,
Intervenor-appellant Commercial Power Ventures Maryland, LLC (CPV) submitted the winning bid and was awarded the promised CfDs. The CfDs required CPV to build a plant and sell its energy and capacity on the federal interstate wholesale markets. If CPV successfully cleared the market, it would be eligible for payments from the EDCs amounting to the difference between CPV’s revenue requirements per unit of energy and capacity sold (set forth in its winning bid) and its actual sales
Plaintiffs-appellees are existing power plants in competition with CPV who allege that the Generation Order is unconstitutional and has resulted in the suppression of PJM prices, a reduction in their revenue from the PJM market, and a distortion of the price signals that market participants rely on in determining whether to construct new capacity. After a six-day bench trial, the district court found the Generation Order field preempted. It reasoned that the CfD payments had the effect of setting the ultimate price that CPV receives for its sales in the PJM auction, thus intruding on FERC’s exclusive authority to set interstate wholesale rates. It did not reach appellees’ conflict preemption claim and rejected their dormant Commerce Clause claim. This appeal followed.
II.
Plaintiffs argue that the Generation Order and the resulting CfDs are preempted by fеderal law under the Supremacy Clause. U.S. Const, art. VI, cl. 2. They ground this contention in two alternative theories: field preemption and conflict preemption. We address each in turn.
A.
Preemption of all varieties is ultimately a question of congressional intent. Nw. Cent. Pipeline Corp. v. State Corp. Comm’n,
Statutory text and structure provide the most reliable guideposts in this inquiry. See Medtronic, Inc. v. Lohr,
It is declared that the business of transmitting and selling electric energy for ultimate distribution to the public is affected with a public interest, and that Federal regulation of matters relating to generation to the extent provided in this subchapter and subchapter III of this chapter and of that part of such business*475 which consists of the transmission of electric energy in interstate commerce and the sale of such energy at wholesale in interstate commerce is necessary in the public interest, such Federal regulation, however, to extend only to those matters which are not subject to regulation by the States.
16 U.S.C. § 824(a); see also id. at § 824(b).
The breadth of this grant of authority is confirmed by the FPA’s similarly capacious substantive and remedial provisions. For example, 16 U.S.C. § 824d(a) states that:
All rates and charges made, demanded, or received by any public utility for or in connection with the transmission or sale of electric energy subject to the jurisdiction of the Commission, and all rules and regulations affecting or pertaining to such rates or charges shall be just and reasonable, and any such rаte or charge that is not just and reasonable is hereby declared to be unlawful.
A wealth of case law confirms FERC’s exclusive power to regulate wholesale sales of energy in interstate commerce, including the justness and reasonableness of the rates charged. “The [FPA] long has been recognized as a comprehensive scheme of federal regulation of all wholesales of [energy] in interstate commerce,” Schneidewind v. ANR Pipeline Co.,
Indeed, the Supreme Court has expressly rejected the proposition that the “scope of [FERC’s] jurisdiction ... is to be determined by a case-by-case analysis of the impact of state regulation upon the national interest.” Nantahala Power & Light Co. v. Thornburg,
The federal scheme thus “leaves no room either for direct state regulation of the prices of interstate wholesales of [energy], or for state regulations which would indirectly achieve the same result.” N. Natural Gas Co.,
B.
Applying these principles, we conclude that the Generation Order is field preempted because it functionally sets the rate that CPV receives for its sales in the PJM auction.
The CfD payments, which are conditioned on CPV clearing the federal market, plainly qualify as compensation for interstate sales at wholesale, not simply for CPV’s construction of a plant. Furthermore, the Order ensures — through a system of rebates and subsidies calculated on the basis of the PJM market rate — that CPV receives a fixed sum for every unit of capacity and energy that it clears (up to a certain ceiling). The scheme thus effectively supplants the rate generated by the auction with an alternative rate preferred by the state. See Appalachian Power Co.,
Maryland and CPV argue that the Generation Order does not actually set a rate because it does not directly affect the terms of any transaction in the federal market. Relevantly, appellants contend, the Order does not fix the rate that PJM pays to CPV for its sales in the auction; instead, it merely fixes the rate that CPV receives for such sales. On the basis of this asymmetry, appellants contend that the CfD payments represent a separate supply-side subsidy implemented entirely outside the federal market.
We cannot accept this argument. The case of Mississippi Power & Light Co. v. Mississippi ex rel. Moore,
As the district court recognized, see PPL Energyplus, LLC,
Our conclusion that the Generation Order “seeks to regulate a field that the [FPA] has occupied also is supported by the imminent possibility of collision between” the state and federal regimes. Schneidewind,
C.
Appellants argue that this court should apply a robust version of the presumption against preemption to save the Maryland scheme. See, e.g., Intervenor-Appellant’s Br. at 14. As its name suggests, this presumption militates against findings of federal preemption, especially in areas of traditional state authority. See Rice v. Santa Fe Elevator Corp.,
Appellants emphasize the FPA’s decree that FERC “shall not have jurisdiction, except as specifically provided in this sub-chapter and subchapter III of this chapter, over facilities used for the generation of electric energy.” 16 U.S.C. § 824(b)(1). They contend that the Generation Order falls on the state side of the jurisdictional line, since it is designed to ensure that Maryland enjoys an adequate supply of generation capacity.
Although states plainly retain substantial latitude in directly regulating generation facilities, they may not exercise this authority in a wаy that impinges on FERC’s exclusive power to specify wholesale rates. As the Supreme Court noted in a similar context:
[T]he problem of this case is not as to the existence or even the scope of a State’s power to [regulate generation facilities]; the problem is only whether the Constitution sanctions the particular means chosen by [the state] to exercise the conceded power if those means threaten effectuation of the federal regulatory scheme.
N. Natural Gas Co.,
Nonetheless, it is important to note the limited scope of our holding, which is addressed to the specific program at issue. We need not express an opinion on other state efforts to encourage new generation, such as direct subsidies or tax rebates, that may or may not differ in important ways from the Maryland initiative. It goes without saying thаt not “every state statute that has some indirect effect” on wholesale rates is preempted, Schneidewind,
D.
Appellants’ position is further complicated by the fact that the principles of field and conflict preemption in this case are mutually reinforcing. As relevant here, conflict preemption applies “where under the circumstances of a particular case, the challenged state law stands as an obstacle to the accomplishment and execution of the full purposes and objectives of Congress.” Crosby v. Nat'l Foreign Trade Council,
In a system of “interlocking” jurisdiction, such as that created by the FPA, “[i]t is inevitable that jurisdictional tensions will arise” — even if each sovereign formаlly remains within the confines of its “assigned sphere.” Nw. Cent. Pipeline Corp.,
As an initial matter, the Generation Order has the potential to seriously distort the PJM auction’s price signals, thus “interfering] with the method by which the federal statute was designed to reach its goals.” IDACORP Inc.,
Maryland’s initiative disrupts this scheme by substituting the state’s preferred incentive structure for that approved by FERC. See PPL EnergyPlus, LLC v. Hanna, No. 11-745,
The Order is preempted for the further reason that it conflicts with NEPA, which represents an exception to PJM’s otherwise steadfast commitment to a uniform market clearing price. In order to stimulate plant construction, NEPA carves out a three-year period during which certain new generators are eligible to receive a fixed price for the capacity they sell in the PJM markets. See PJM Interconnection, LLC,
The Generation Order represents an effort by the state to directly override this explicit policy choice. As a functional matter, the CfDs extend the NEPA period for CPV to twenty years, a duration vastly exceeding the current NEPA term and double the term that CPV unsuccessfully requested FERC to institute. Maryland has sought to achieve through the backdoor of its own regulatory process what it could not achieve through the front door of FERC proceedings. Circumventing and displacing federal rules in this fashion is not permissible.
Appellants assert that no conflict is present because FERC explicitly accommodated — via the MOPR — the participation of subsidized plants in its auction. See, e.g., Intervenor-Appellant’s Reply Br. at 23. The fact that FERC was forced to mitigate the Generation Order’s distorting effеcts using the MOPR, however, tends to confirm rather than refute the existence of a conflict. Furthermore, FERC’s own comments on the subject belie appellants’ claim that the agency has affirmatively approved the Generation Order. See PJM Interconnection, LLC, 137 FERC at ¶3 (“Our intent is not to pass judgment on state and local policies and objectives with regard to the development of new capacity resources.... ”).
As was the case with our field preemption holding, our conflict preemption ruling is narrow and focused upon the program before us. Obviously, not every state regulation that incidentally affects federal markets is preempted. Such an outcome “would thoroughly undermine precisely the division of the regulatory field that Con
III.
For the foregoing reasons, we hold thе Generation Order preempted under federal law and affirm the judgment of the district court.
AFFIRMED
Notes
. As a threshold matter, appellants assert that we lack jurisdiction under the filed rate doctrine. See Appellants’ Br. at 9. This claim is meritless, however, given that a judgment in plaintiffs' favor would require this court neither “to invalidate a filed rate nor to assume a rate would be charged other than the rate adopted by the federal agency in question.” Pub. Util. Dist. No.1 v. IDACORP Inc.,
. Schneidewind dealt with the Natural Gas Act rather than the FPA. However, because "the relevant provisions of the two statutes are in all material respects substantially identical,” the Supreme Court has adopted an "established practice of citing interchangeably decisions interpreting the pertinent sections of the two statutes.” Ark. La. Gas Co. v. Hall,
. Our conclusion that the Generation Order is preempted renders it unnecessary for us to reach plaintiffs' dormant Commerce Clause arguments, which were rejected by the district court. See Schneidewind,
