Full opinion text
THOMAS, Circuit Judge: Confronted by unprecedented market pressures, the Bonneville Power Administration (“BPA”) undertook a searching re-examination of its business strategy. As a result, BPA proposed profound alterations in its relationships with certain large industrial customers. At issue in this consolidated appeal are the administrative decisions effecting the transition, which are challenged by a number of widely divergent interest groups. After careful consideration, we deny all the petitions for review. BACKGROUND In order to assess whether BPA’s actions were arbitrary and capricious, or outside its statutory authority, we must place. BPA’s decision in proper context. Thus, an understanding of the statutory framework guiding BPA and the origins of the market forces which informed the BPA’s Administrator (“Administrator”) in reaching his conclusions is necessary. BPA is a federal agency within the Department of Energy created by Congress in 1937 originally to market low-cost hydroelectric power generated by the Federal Columbia River Power System, a series of dams along the Columbia River in, Oregon and Washington. 16 U.S.C. §§ 832-832m. Congress has since expanded BPA’s mandate to include marketing authority over nearly all the electric power generated by federal facilities in the Pacific Northwest. 16 U.S.C. § 838f. As part of its marketing responsibilities, BPA is charged with oversight of the massive federal high-voltage transmission system, comprising approximately 80% of the bulk transmission capacity in the Pacific Northwest, used to deliver power generated at a federally owned and operated facility, termed “federal power,” and non-federal power to its customers. 16 U.S.C. § 838b. Hydroelectric power producers, such as BPA, store the generation capacity of hydroelectric energy as water held behind dams. Department of Water & Power of the City of Los Angeles v. Bonneville Power Admin., 759 F.2d 684, 686 (9th Cir.1985). The amount of power that'BPA has available to sell at any given time depends upon the height of water held behind the dam. This in turn depends upon the streamflows in the Columbia River basin.' Portland Gen. Elec. Co. v. Johnson, 754 F.2d 1475, 1477 (9th Cir.1985). Because streamflows are somewhat unpredictable, BPA can never be certain precisely how much power it will have for sale in the future. To cope with this uncertainty, BPA has evolved a marketing plan dependent upon sales of “firm” and “nonfirm” power. From BPA’s perspective, “firm” power is that amount of power BPA will be able to produce when the streamflows are at their lowest possible level as determined by historical data. Southern Cal. Edison Co. v. Jura, 909 F.2d 339, 341 n. 1 (9th Cir.1990). Put another way, firm power is the minimum amount of power that BPA can expect to have available for sale during & given time period or the amount of power which “BPA expects to have available under even the most adverse streamflow conditions.” Portland Gen. Elec. Co., 754 F.2d at 1477. In contractual terms, “firm power” means power on demand at any time. A firm power customer expects unlimited power access, and pays a commensurate rate. “Nonfirm” or “interruptible” power is any amount of power in excess of firm power. Because BPA can count on having power to meet its firm power commitments, BPA sells firm power in long-term contracts. Id. BPA sells nonfirm power on a short-term basis whenever it is available. Id. BPA power purchasers essentially fall into three groups. The first and primary group is composed of public utilities and other public entities who purchase power for resale to the ultimate consumer. These purchasers are known as “preference” customers because BPA is required to give priority to this group’s applications for power over the competing applications of non-preference customers. 16 U.S.C. § 832c(a). The second group contains private, investor-owned utilities who also purchase BPA power for resale. The third group are the direct service industries (“DSIs”) — industrial companies engaging in power intensive operations who purchase power directly from BPA for their own use. These customers are a closed group: BPA is forbidden from selling power directly to any entity other than those who are currently DSIs. See 16 U.S.C. § 839c(d)(2). The DSIs represent approximately one-third of BPA’s total power sales and contributed 25% of BPA’s total revenues annually from 1992 to 1995. The DSIs are unique among BPA’s direct customers in that they have the ability to withstand unexpected interruptions of their power without damage to their industrial processes. They are able to do this because they are typically large industrial customers who may be able to adjust their operations or provide their own backup power to accommodate occasional interruptions in service, particularly if they are given advance notice of the interruptions. The needs of DSIs are in contrast to BPA’s utility customers that serve residential consumers who need an uninterrupted source of power. BPA takes advantage of this capability by specifying in its DSI power sale contracts that a portion of the DSIs’ power or transmission capacity may be “interrupted” or held back for use elsewhere. This allows BPA to treat the interruptible portion as “reserves” from which it may draw in the event of an emergency threatening its ability to serve its other firm customers. See 16 U.S.C. §§ 839c(d)(l)(A), 839a(17)(B). There are two types of reserves: “operating” reserves, which are called on to replace generation failures, and “stability” reserves, used to respond to transmission system failures. Both BPA and the DSIs gain from this arrangement. Having these reserves saves BPA the expense of building additional generating or transmission facilities to meet its firm power commitments, and the DSIs purchase the interruptible portion of their power at a discount. See 16 U.S.C. § 839e(c)(3). BPA’s operations are governed largely by four statutes: the Pacific Northwest Electric Power Planning and Conservation Act of 1980, 16 U.S.C. §§ 839-839h (“Northwest Power Act”); the Pacific Northwest Federal Transmission System Act of 1974, 16 U.S.C. §§ 838-838k (“Transmission Act”); the Pacific Northwest Consumer Power Preference Act of 1964, 16 U.S.C. §§ 837-837h (“Preference Act”); and the Bonneville Project Act of 1937, 16 U.S.C. §§ 832-832m (“Project Act”). These statutes subject BPA to a variety of detailed and potentially conflicting statutory directives. For instance, the Northwest Power Act requires BPA to set its rates for electric power at a level sufficient to meet its costs and to repay the federal debt incurred in building the projects included in the Federal Columbia River Power System. 16 U.S.C. §§ 838g, 839(4), 839e(a)(l). While this would tend to encourage higher rates, the Transmission System Act requires that BPA market federal power “with a view to encouraging the widest possible diversified use of electric power at the lowest possible rates to consumers consistent with sound business principles____” 16 U.S.C. § 838g. At the same time, BPA must also be environmentally conscious, support energy conservation, and act to protect the fish and wildlife of the Columbia River basin. 16 U.S.C. §§ 839, 839b. From its creation in 1937 until very recently, BPA enjoyed a considerable price advantage over its competitors in the sale of power. BPA’s inexpensive power and control over most of the transmission facilities in the Pacific Northwest made it the region’s dominant power supplier. Steadily increasing demand for low-cost federal power in the 1970s led BPA to conclude that it would not have sufficient resources to meet the demand by the end of the decade. Aluminum Co. of Am. v. Central Lincoln Peoples’ Utility Dist., 467 U.S. 380, 385, 104 S.Ct. 2472, 2477, 81 L.Ed.2d 301 (1984) {“ALCOA ”). Accordingly, BPA announced in 1973 that new contracts for firm power sales would not be offered to the investor-owned utilities. Id. Two years later BPA advised the DSIs that their power sale contracts scheduled to expire during the 1981-1991 period would not be renewed. Id. By 1976, further increases in demand forced BPA to warn its preference customers that it would not have sufficient resources to fulfill their power needs past mid-July 1983. Id. BPA began considering how to allocate the available federal power among its preference customers, but in the absence of any guidance on the issue from the Project Act, it feared litigation would be inevitable. Id. Meanwhile, faced with the high cost of alternative sources of power, nonpreference customers hastened to find ways to regain access to cheap federal power. Id. This uncertain and unstable situation spurred Congress to enact the Northwest Power Act in 1980. The Act transformed BPA from an agency that merely sold whatever power was available from generating facilities in the Federal Columbia River Power System to one charged with the responsibility of meeting the region’s future power needs, promoting energy conservation, and enhancing fish and wildlife affected by the power system in the Columbia River basin. 16 U.S.C. § 839. The Act also sought to avert disputes over power allocation by requiring BPA to enter into an initial set of power sale contracts with its different groups of customers, including the DSIs. ALCOA, 467 U.S. at 386, 104 S.Ct. at 2477-78, 16 U.S.C. §§ 839c, 839e(d)(l)(B), 839c(g)(l). Pursuant to this statutory directive, BPA entered into new, 20-year contracts with the DSIs in 1981 which allowed them to vary their power load depending upon market conditions and to terminate the contract with one year’s notice to BPA (the “1981 Contracts”). The contracts also contain a “stranded costs” provision allowing BPA to recover from the DSIs any otherwise unrecoverable costs incurred by BPA as a result of a D SI terminating its contract and ceasing BPA power purchases. BPA’s price advantage enabled it to discharge its new responsibilities to promote energy conservation and fish and wildlife welfare without significant incident throughout the 1980s. Technological advances in gas-fired combustion turbine design and low natural gas prices began lowering the price of alternative energy sources and putting some competitive pressure on BPA. Additionally, the Federal Energy Regulatory Commission (“FERC”) commenced efforts to encourage competition and transmission access. With the amendments to the Federal Power Act, 16 U.S.C. §§ 791a-828c, contained in the Energy Policy Act of 1992, Pub.L. No. 102-486, 106 Stat. 2776 (1992) (“Energy Policy Act”), competition in the wholesale power market increased markedly. The Energy Policy Act was intended, among other things, to promote greater competition in bulk power markets by encouraging new generation entrants and by expanding FERC’s jurisdiction to compel transmission access. Under the Energy Policy Act, power producers who lack their own transmission capability may request FERC to order transmission line owners, including BPA, to transmit, or “wheel”, power for them even if the line owners had not generated the power. 16 U.S.C. §§ 824j(a), 824k(i). “Wheeling is the procedure by which the owner of transmission lines transmits electricity produced by another party for a specified charge.” Department of Water & Power, 759 F.2d at 688 n. 6. In this manner, Congress sought to encourage wholesale power marketing competition between utilities and independent power producers and thereby to reduce the cost of electricity to consumers. See, e.g., H.R. Rep. No. 474(1), 102d Cong., 2d Sess. 138-40 (1992), reprinted in 1992 U.S.C.C.A.N. 1953, 1961-63. As a result of this and other forces, the price of wholesale power in the Pacific Northwest dropped, and for the first time in its history, BPA faced considerable price competition. At the same time, increases in the cost of BPA’s fish and wildlife programs caused the price of its own power to rise. The DSIs’ 1981 Contracts with BPA required any DSI wanting to continue purchasing BPA power after the 20-year term to request a replacement contract by June 30, 1993. In anticipation of this deadline, and at the behest of BPA customers considering diversification of their power supply to take advantage of the competitive developments in the wholesale power market, BPA initiated a long-term power sale contract renegotiation process in early 1992. At the same time, BPA began a parallel environmental review process in order to ensure compliance with the National Environmental Policy Act of 1969, 42 U.S.C. § 4332 (“NEPA”). BPA’s customers, state governments, environmental groups, and public interest groups all participated in these early contract renegotiation and environmental review processes. On April 30,1992, BPA published a Notice of Intent to prepare an environmental impact statement (“EIS”) called the “Replacement of Long-Term Firm Power Sales Contracts EIS.” The anticipated scope of the EIS environmental analysis was “to address broad policy issues which affect the impacts of contract provisions on the environment.” The participants in the renegotiations established a “Working Group” composed of utility customers, DSIs, and constituents — including petitioners Public Power Council and Northwest Conservation Act Coalition (“NCAC”) — to develop contract renegotiation principles. Recognizing that the NEPA process depended upon an analysis of the issues raised in the contract renegotiation process, the Working Group was tasked also with reviewing and coordinating the development of the analyses in the EIS. By October of 1992, the Working Group had developed a list of primary issues for the new long-term power sales contract renegotiations. The participants had by this time formed smaller, self-selected groups, appropriately called subgroups, to address particular issues in more detail and present their conclusions to the full Working Group for consideration. Products from the Working Group were then shared with the broader public through mailings, Issue Alerts, and Fact Sheets. One subgroup, the “Process Subgroup,” which included petitioners Public Power Council and NCAC, was formed to develop alternatives for resolving each of the primary contract renegotiation issues. The Process Subgroup examined many questions, including whether “the power sales contracts [should] address transmission access for customers and ultimate consumers,” and whether the new contracts should allocate the unrecoverable costs that a single customer may impose on the system, called “stranded costs.” Another subgroup, the NEPA Adjunct Working Group, which also included petitioners NCAC and Public Power Council, met on a regular basis throughout the renegotiation process to discuss the relationships between the primary issues, alternative business decisions, and possible environmental impacts, and to review and comment on the proposed alternatives for the EIS. The Working Group early on identified overarching issues of major concern to the participants that were not addressed by the existing power sales contracts, including wholesale power rate design and access to BPA’s transmission facilities for purchases of non-federal power. Working Group discussions revealed that customers were reluctant to execute contracts with BPA without knowing its position on these issues. BPA therefore proposed to expand the scope of the EIS in August of 1993 to include rate design and transmission access, renaming it the “Pacific Northwest Commercial Services and Rates EIS.” In response to public comments on the scope of this new EIS, and in recognition of its need to become more competitive to retain customers while continuing to fulfill its public service missions, BPA further expanded the EIS in December of 1993 to encompass all aspects of its proposed Business Plan for 1994, renaming it the “Business Plan EIS.” BPA circulated a Draft Business Plan EIS to the public for comment in June of 1994, along with a draft of BPA’s Business Plan. Meanwhile, in September of 1994, BPA and the renegotiation participants began negotiations, called “Omnibus Negotiations,” to reach non-binding agreements on the principles to govern the new long-term contracts. In December of 1994, BPA announced that it would prepare a Supplemental Draft EIS to incorporate the extensive comments received on the Draft Business Plan EIS and updated information and analysis. This Supplemental Draft EIS was distributed for public comment in March of 1995. By January of 1995, several issues remained unresolved in the Omnibus Negotiations after nearly four months of talks, including the marketing and crediting of unused power, the transition to new contracts, and stranded costs. The marketing and crediting issue involved a proposed “take-or-pay” contract provision, under which a purchaser must pay for power sold to it even if it does not take delivery. The parties proposed that, under certain circumstances, BPA be able to resell a portion of the undelivered power sold to the purchaser to mitigate the purchaser’s fixed obligations. BPA would credit revenue generated from the resale to the purchaser’s bill. In February of 1995, BPA and the participants discussed converting the non-binding agreements on principles into draft contracts. BPA proposed to develop and distribute for public comment contract “templates” to be used as a framework for bilateral negotiations with customers. In April of 1995, soon after the conclusion of the Omnibus Negotiations in March, two DSIs reduced their power purchases under their 1981 Contracts, choosing to purchase less expensive power provided by BPA’s competitors. Also in April, BPA and the DSIs began entering into five-year contracts in which BPA would sell to the DSIs “unbundled” transmission service, so called because BPA had previously transmitted only power it had produced itself, selling its power “bundled” with its transmission service. These agreements, called the Initial Transmission Agreements, established a mechanism by which the DSIs can obtain BPA transmission service for delivery of power purchased from sources other than BPA. In accordance with NEPA, BPA conducted an environmental review of the Initial Transmission Agreements, subsequently issuing a Categorical Exclusion Determination (“CX Determination”) under NEPA regulation 10 C.F.R. § 1021.410. BPA concluded that no further environmental analysis was necessary to comply with NEPA because the transmission contracts were of a class of actions qualified to be exempt from NEPA analysis: they were of short duration, would not cause changes in the normal operating limits of generating projects, and transmission was to occur over existing transmission lines. In early June of 1995, BPA circulated preliminary drafts of contract templates for public review. In comments submitted on these draft templates, the DSIs indicated that BPA would not be able to compete successfully unless it offered contracts comparable to the five-year, fixed-rate contracts then being offered by its competitors. BPA held a public meeting on June 22, 1995 to discuss the contract renegotiations and stranded costs, among other topics. BPA stated that its plan for dealing with the stranded costs issue was never to incur them-it would attempt to secure a load commitment through a certain period sufficient to ensure enough revenue to meet all its costs, and after that period, compete successfully so that system investments never become stranded. BPA began discussions with the DSIs in mid-June to design a competitive BPA offer. After examining comments on the Supplemental Draft EIS, BPA published the final Business Plan EIS in June of 1995. The Business Plan EIS contains extensive discussion of six alternative policy directions BPA considered adopting to guide its efforts to the changing conditions in the electric utility industry and in the Pacific Northwest. These alternatives were: (1) the “Status Quo (No Action)” alternative, in which BPA would continue to raise rates to cover mounting costs; (2) the “BPA Influence” alternative, requiring BPA to use its position in the regional power market to promote compliance by its customers with the goals established by the Northwest Power Act and its other organic statutes; (3) the “Market-Driven” alternative, in which BPA would participate fully as a competitor in the market for power, transmission, and energy services, using success in the market to ensure the financial strength necessary to fulfill its mandates; (4) the “Maximize BPA’s Financial Returns” alternative, in which BPA would seek to obtain the highest net revenue for marketable products and minimize costs for activities that do not produce revenue, while continuing to fulfill the requirements of the Northwest Power Act and other statutes; (5) the “Minimal BPA Marketing” alternative, in which BPA would not acquire new power resources of plan to serve customers’ load growth, instead meeting revenue requirements through the long-term allocation of current Federal System capability; and (6) the “Short-Term Marketing” alternative, in which BPA would emphasize short-term marketing of power and transmission products and services to be responsive to the market. In a Record of Decision (“ROD”) published on August 15,1995, called the “Business Plan Final Environmental Impact Statement Record of Decision” (“Business Plan ROD”), BPA decided to adopt the Market-Driven alternative, believing it to be most accommodating to all BPA’s responsibilities and to strike the best balance between marketing and environmental concerns. While it was not one of the environmentally preferred alternatives, in BPA’s opinion the differences between it and the environmentally preferred alternatives were small. BPA felt its ability to achieve all its goals would be diminished under any other alternative. The Business Plan ROD indicates that while the Market-Driven alternative provides the basic policy direction for BPA to decide a number of major issues related to products and services, rate designs, energy resources, and transmission, BPA would review the Business Plan EIS to ensure that the impacts of any subsequent actions taken on these issues are adequately analyzed within the range of alternatives. Decisions on specific issues would be the subject of subsequent RODs tiered to the Business Plan ROD. Meanwhile, the discussions with the DSIs to fashion a competitive BPA power sales contract came to a head. On August 22, 1995, the Administrator sent the DSIs unsigned contracts, requesting written offers of load placement at a target rate to be established later by BPA. On September 20, ten DSIs returned signed contract offers with a total load commitment of 1606 average megawatts (“aMW”), representing a little more than half of BPA’s loads at that time. BPA held a public meeting on September 22 to receive comments on whether it should accept the DSIs’ offers. The Administrator decided to execute the contract offers with each DSI committing 80% or more of their firm load to BPA, provided that the total DSI load commitment equaled at least 1200 aMW. True to his promise in the Business Plan ROD to issue subsequent RODs tiered to the Business Plan ROD for decisions on specific issues, the Administrator issued a ROD on September 28, 1995 announcing this decision (called the “Direct Service Industrial Customer Requirements Power Sales Contract Record of Decision,” or “Block Sale ROD”) and ensuring its consistency with the analysis contained in the Business Plan EIS. Presumably because they require the DSIs to purchase power on a take-or-pay basis, these contracts have come to be known as the “Block Sale Contracts.” As the contract renegotiations progressed, BPA and the DSIs agreed to extend the term of the Initial Transmission Agreements. In a ROD issued on August 31, 1995 (the “Long-Term Extension ROD”), the Administrator announced his decision to execute contracts-ealled the Long-Term Extension Agreements-to extend the term of the Initial Transmission Agreements fifteen years, for a total of twenty years. These decisions resulted in the filing of three petitions for review. The Association of Public Agency Customers (“APAC”) filed a petition for review of the Business Plan ROD on November 27, 1995 and an amended petition two days later on November 29,1995. APAC is a non-profit industrial trade association located in Portland, Oregon that represents companies that purchase large quantities of electric power at retail from public agency customers of BPA. APAC, the Utility Reform Project and the Public Power Council filed petitions for review of the Long-Term Extension ROD on November 29, 1995. The Utility Reform Project is a non-profit Oregon environmental and energy policy advocacy organization that represents Oregon and Washington residents who receive power from BPA. A group of DSIs were later allowed to intervene, as were NCAC and the State of Oregon. APAC, the Utility Reform Project and Kevin Bell (an individual member of the Utility Reform Project) filed petitions seeking review of the Block Sale ROD on December 27, 1995. Some DSIs were again allowed to intervene, as well as NCAC and Public Utility District No. 1 of Clark County, Washington (“Clark County”). The Petitioners raise numerous arguments in the petitions, including: (1) whether BPA has the statutory authority to wheel non-federal power to the DSIs; (2) whether BPA failed sufficiently to comply with the NEPA; (3) whether BPA acted arbitrarily and capriciously in granting the DSIs stranded cost protection in the Block Sale Contracts; (4) whether BPA acted arbitrarily and capriciously in executing the Long-Term Extension Agreements; (5) whether BPA violated its statutorily mandated ratemaking procedures; and (6) whether the Long-Term Extension Agreements impermissibly interfere in states’ regulation of retail power sales. ANALYSIS I. CHALLENGES TO THE LONG-TERM EXTENSION AGREEMENTS A. BPA’S STATUTORY AUTHORITY TO TRANSMIT NON-FEDERAL POWER Petitioners challenge the Long-Term Extension Agreements, claiming BPA does not have the statutory authority to transmit non-federal power. Our inquiry must begin, as always, by examining the statutory language. If Congress has spoken directly to the issue, the agency and the courts must give full effect to that clearly expressed intent. Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837, 842-43, 104 S.Ct. 2778, 2781-82, 81 L.Ed.2d 694 (1984). Unfortunately, none of BPA’s four organic statutes explicitly grants BPA authority to transmit non-federal power. The Petitioners and the DSIs proffer conflicting theories of statutory construction supporting their own views, but a careful reading of the statutes can only yield one result: Congress did not directly communicate its desire. When relevant statutes are silent on the salient question, we assume that Congress has implicitly left a void for an agency to fill. We must therefore defer to the agency’s construction of its governing statutes, unless that construction is unreasonable. Chevron, 467 U.S. at 843-44, 104 S.Ct. at 2781-83. BPA contends its interpretation of its authority to transmit non-federal power is reasonable because: (1) the Project Act, the Preference Act, the Transmission Act, and the Northwest Power Act together grant the Administrator broad discretion over the federal transmission system in the Pacific Northwest; (2) these statutes do not limit BPA’s authority to provide transmission services to the DSIs; and (3) the organic statutes confer upon the Administrator broad authority to contract in BPA’s best business interests. Certainly, Congress endowed the Administrator with broad-based powers to act in accordance with BPA’s best business interests — powers not normally afforded government agencies. Section 2(b) of the Project Act authorizes the Administrator to “construct, operate, maintain, and improve” transmission facilities “he finds necessary, desirable, or appropriate for the purpose of transmitting electric energy, available for sale, from the Bonneville project to existing and potential markets.” 16 U.S.C. § 832a(b). In California Energy Comm’n v. Bonneville Power Admin., 909 F.2d 1298, 1314 n. 17 (9th Cir.1990), we found that “[tjhis delegation of authority is broad, allowing the Administrator substantial discretion. This discretion is tempered only by the implied limitation that the Administrator’s action not be inconsistent with other congressional decrees.” Section 2(f) of the Project Act provides: Subject only to the provisions of this Act, the Administrator is authorized to enter into such contracts, agreements, and arrangements, including the amendment, modification, adjustment, or cancellation thereof, and the compromise or final settlement of any claim arising thereunder, and to make such expenditures, upon such terms and conditions and in such manner as he may deem necessary. 16 U.S.C. § 832a(f). This revised version of the section was enacted to allow BPA to function more like a business than a governmental regulatory agency. See S. Rep. No. 469, 79th Cong., 1st Sess. 13 (1945) (“[BPA] operates a business enterprise.”) (letter from Interior Secretary Ickes). Subsequent legislation reaffirmed BPA’s broad authority to further its business mission: [The] legislative history [of the statutes governing BPA’s operations] reflects a congressional recognition of the significant role played by BPA in the Pacific Northwest, and an effort to enable this organization to operate in a businesslike fashion and to free it from the requirements and restrictions ordinarily applicable to the conduct of Government business. The transfer of the functions of BPA from the Department of the Interior to the Department of Energy is not intended to dimmish in any way the authority or flexibility which is a requisite to the efficient management of a utility business. S. Rep. No. 164, 95th Cong., 1st Sess. 30 (1977), reprinted in 1977 U.S.C.C.A.N. 854, 883. Although the Project Act did not contain a provision allowing BPA to wheel non-federal power, wheeling had long been BPA practice by the time Congress granted BPA express authority to do so in the Preference Act. Department of Water & Power, 759 F.2d at 688 n. 6. The Preference Act grants BPA the authority to allocate its excess transmission capacity to carry non-federal power in between the Pacific Northwest and other regions. 16 U.S.C. § 837e. The Preference Act did not forbid allocating transmission capacity to the DSIs, even though the Project Act discussed the DSIs at length. The Transmission Act granted BPA even broader transmission authority, allowing it to provide transmission services for power sales occurring entirely within the Pacific Northwest. 16 U.S.C. § 838b. The Act empowers the Administrator to construct improvements and additions to the federal transmission system in the Pacific Northwest “as he determines are appropriate and required to ... transmit the electric power from existing or additional Federal or non-Federal generating units [or] provide service to the Administrator’s customers.... ” Id. The Northwest Power Act left these statutory directives intact. To be sure, the Northwest Power Act donned BPA with more of the usual trappings of a federal regulatory agency than it had previously worn, including responsibility for promoting various environmental objectives. See, e.g., 16 U.S.C. §§ 839, 839b, 839d. But the Northwest Power Act also reaffirmed the Administrator’s historic broad authority to contract in no uncertain terms: “Subject to the provisions of this chapter, the Administrator is authorized to contract in accordance with section 2(f) of the Bonneville Project Act of 1937 (16 U.S.C. 832a(f) [sic]).” 16 U.S.C. § 839f(a). BPA’s new, more typically governmental responsibilities suggest the propriety of even greater deference to the Administrator’s decisions. He must continue to run BPA like a business ón a sound financial basis, enabling it to repay its debt to the federal treasury in a timely fashion, while discharging costly new public duties assumed after the Northwest Power Act’s passage. Significantly, even though a substantial portion of the Northwest Power Act is devoted solely to BPA’s relationship and obligations to the DSIs, Congress did not indicate any intent to restrict the Administrator’s discretion to provide wheeling services to these companies. So what void did Congress leave for the Administrator to construe? Not the decision of whether BPA had the authority to transmit non-federal power: because until very recently, and well after passage of the Northwest Power Act in 1980, BPA power had always been much less expensive than power sold by its competitors, only the most prescient futurist could have contemplated that issue when Congress was considering BPA’s organic statutes. Rather, the “gap” Congress left for the Administrator is how best to further BPA’s business interests consistent with its public mission. The statutes governing BPA’s operations are permeated with references to the “sound business principles” Congress desired the Administrator to use in discharging his duties. See 16 U.S.C. §§ 825s, 838g, 839e(a)(l). See also Department of Water & Power, 759 F.2d at 693 (“To the extent that [BPA’s challenged transmission allocation policy] is designed to mitigate projected deficits, [it] is not only statutorily authorized but statutorily mandated.”). Thus, although Congress did not prescribe the parameters of the Administrator’s authority, it granted BPA an unusually expansive mandate to operate with a business-oriented philosophy. Accordingly, it seems particularly wise to defer to the agency’s actions in furthering its business interests, especially when the agency is responding to unprecedented changes in the market resulting from deregulation. That Congress never foresaw unbundled transmission service as a valuable commodity, and thus never considered whether BPA could sell transmission services to the DSIs separate from BPA power, does not change this conclusion. Congress gave the Administrator the authority to run BPA like a business. In that sense Congress addressed BPA’s authority to act in response to unforeseen eventualities, as businesses frequently must. In this context, BPA’s statutory construction of its organic statutes appears reasonable, requiring our deference to its judgment. B. UNLAWFUL DISCRIMINATION The Transmission Act prohibits discrimination among retail power consumers in providing transmission services. APAC and the Public Power Council contend that this provision precludes BPA from offering to wheel non-federal power to the DSIs without also offering the same to APAC’s members. We disagree. There is no antidiscrimination provision applicable to the DSIs, and even if there were, the DSIs and APAC’s members are not “similarly situated,” as required to actuate the Transmission Act’s protection. Section 6 of the Transmission Act provides that “the Administrator shall make available to all utilities on a fair and nondiscriminatory basis, any capacity in the Federal transmission system which he determines to be in excess of the capacity required to transmit electric power generated or acquired by the United States.” 16 U.S.C. § 838d (emphasis added). This section was intended to ensure that public and private utilities would have equal access to BPA’s excess transmission capacity. See H.R.Rep. No. 1375, 93rd Cong., 2d Sess. 5 (1974), reprinted in 1974 U.S.C.C.A.N. 5810, 5814. It therefore applies only to discrimination among utilities. At the time this provision was enacted, equal transmission access for the DSIs to wheel non-federal power was not contemplated. For this reason, APAC’s and the Public Power Council’s appeal to the legislative history of § 838d, which provides that “the Administrator of the Bonneville Power Administration shall not discriminate among classes of customers in making agreements to transmit electric power over Federal transmission lines,” S. Rep. No. 1030, 93rd Cong., 2d Sess. 10 (1974), U.S. Code Cong. & Admin. News at p. 5810 (emphasis added), is unavailing. “Classes of customers” refers to classes of utility customers, those who purchase power for resale, because those are the only BPA customers in 1974 that desired unbundled transmission services from BPA. Further, APAC’s members are not “customers” of BPA, so BPA is not discriminating between classes of “customers” when it offers wheeling services to the DSIs but not to APAC’s members. Thus, there is no antidiscrimination standard that applies to BPA’s provision of wheeling services to the DSIs but not to APAC’s members. APAC’s argument that the Federal Power Act, as amended by the Energy Policy Act, prohibits BPA’s rates for transmission services from being “unjust, unreasonable, or unduly discriminatory or preferential,” 16 U.S.C. § 824k(i)(l)(ii), does not require a different conclusion. See also 16 U.S.C. § 824k(a). The issue is not whether BPA may charge discriminatory rates for transmission services but whether, having offered transmission services to some of its retail customers, it must offer those services to all. Even if section 6 did apply, we believe BPA’s actions would be fully justified. To make out a discrimination claim under the Federal Power Act, APAC must at a minimum show that: (1) its members are similarly situated to the DSIs; and (2) there is disparate treatment for the same service. City of Vernon v. F.E.R.C., 845 F.2d 1042, 1045-46 (D.C.Cir.1988). APAC’s members and the DSIs are not similarly situated. The DSIs have the right to cancel their direct BPA power purchases with just one years’ notice to BPA, while APAC’s members do not contract directly with the DSIs at all. Rather, they contract with utilities who purchase power from BPA under contracts which require seven years’ notice for cancellation. The Administrator offered transmission services to the DSIs in order to make BPA a more attractive service provider to these important BPA customers. Not only do the DSIs account for a substantial portion of BPA’s total revenue, but they also provide BPA with the reserves it needs to ensure the smooth and efficient operation of service to its other customers. Both the revenue and the reserves would have been lost if the DSIs canceled their power sale contracts, as several were seriously considering. The crucial fact which renders the DSIs and APAC’s members not “similarly situated” — that BPA was faced with the prospect of losing the DSIs as customers — is also the fact which impelled BPA to act as it did. Under these circumstances, there has been no unlawful discrimination. Finally, Petitioners argue that if the DSIs cease purchasing power directly from BPA in 2001, when the Block Sale Contracts expire, and instead start to purchase power from a utility in the retail market, they will no longer be direct service industrial customers; rather, they will be retail customers just like APAC’s members. If that occurs, Petitioners argue, the DSIs will then lose any special legal status they may currently enjoy. This is speculative and contingent upon an eventuality that may never come to pass. Actions allegedly violative of the antidiscrimination provisions Transmission Act must be judged on the purchaser’s status when the Administrator acts. Accordingly, the DSIs’ potential status as future customers is not germane to a present antidiscrimination inquiry. At the time relevant to our consideration, APAC’s members and the DSIs were not similarly situated. C. ANTI-COMPETITIVE EFFECTS APAC argues that BPA did not consider the impact of its allocation decision on competition in the relevant markets, as required by 16 U.S.C. § 832a(b). BPA has an obligation to consider some federal antitrust policies when allocating its excess transmission capacity. California Energy Resources Conservation and Dev. Comm’n v. Bonneville Power Admin., 831 F.2d 1467, 1475 (9th Cir.1987) (“CERCDC I”). “Congress specifically articulated its intent that BPA operate its transmission lines in part ‘to prevent the monopolization thereof by limited groups.’ ” Id. (quoting 16 U.S.C. § 832a(b)). APAC argues this obligation requires BPA to consider the impact of its allocation decision on competition in the relevant markets. We disagree. In CERCDC I, the petitioners challenged BPA’s then-applicable Intertie access policy, arguing in part that the policy failed to give regard to antitrust policies. We upheld the access policy after examining BPA’s justifications for its policy and the structure of the market for electric power and transmission services. CERCDC I, 831 F.2d at 1474-77. APAC argues that the Long-Term Extension Agreements will give the DSIs a competitive edge over the APAC members with which they compete, and BPA failed to consider this anti-competitive impact when it executed the contracts. APAC’s argument carries the CERCDC I command to examine antitrust policies too far. CERCDC I does not require BPA to consider the competitive effects of these contracts in downstream markets. Thus, BPA need not attempt to examine whether or how much of a price advantage an aluminum producing DSI may have over its APAC counterpart as a result of these agreements, a task it is ill-equipped to undertake. Rather, BPA must consider the competitive effects of these contracts in the markets for power and transmission services. See California Energy Comm’n, 909 F.2d at 1309 (“BPA has given adequate consideration to the effect of the [transmission access policy] on competition in the interregional energy markets.”) (emphasis added). That command has been fulfilled. The whole thrust of BPA’s business activities in the last few years, the entire text of the BP EIS, and the foundational principles in the Business Plan all focus on competition in the markets for electric power and transmission services. Because BPA entered into the Long-Term Extension Agreements to enable it to compete effectively in the newly competitive market for wholesale power, it had to consider the impact of those Agreements on competition in that market. Moreover, by permitting the DSIs access to excess BPA transmission capacity, the agreements promote, rather than restrict, competition in the electric power industry. Thus, the agreements further, rather than frustrate, the purposes of the antitrust laws. D. INFRINGEMENT ON STATE REGULATORY AUTHORITY Oregon argues that the Long-Term Extension Agreements impermissibly interfere with the regulatory scheme envisioned by Congress, in which authority over retail wheeling, or the transmission of power to end-users of electricity, is reserved to the states. We disagree. While it is unquestionably generally the province of the states to regulate retail sales of power, see FERC Order No. 888, 61 Fed.Reg. 21,540, 21,726 (1996); Federal Power Comm’n v. Southern Cal. Edison Co., 376 U.S. 205, 214, 84 S.Ct. 644, 650-51, 11 L.Ed.2d 638 (1964), the states do not have the power, absent absolutely clear congressional direction to the contrary, to regulate transmission lines owned by BPA, a federal agency. See Hancock v. Train, 426 U.S. 167, 179, 96 S.Ct. 2006, 2012-13, 48 L.Ed.2d 555 (1976) (“[W]here ‘Congress does not affirmatively declare its instrumentalities or property subject to regulation,’ ‘the federal function must be left free’ of regulation.”) (footnote omitted). No such affirmative declaration is present here. See 16 U.S.C. § 824k(h) (“[Njothing in this subsection shall affect any authority of any State ... concerning the transmission of electric energy directly to an ultimate consumer.”). Oregon’s economic concerns about load-shifting are not germane to our review. Interstate transmission is clearly a federal matter. FERC Order No. 888, 61 Fed.Reg. at 21,725. Additionally, because the DSIs have historically purchased their power requirements directly from BPA, allowing the DSIs to purchase out-of-state power will not remove any load from Oregon power producers. Further, the Long-Term Extension Agreements do not embrace retail wheeling to all end-users of power. They merely contemplate wheeling non-federal power for select end-user customers with whom BPA has had a special relationship for many years. While Congress may have “consistently left to the States the authority to regulate retail sales to the end-users of electricity,” the states have never had any authority to regulate BPA’s interactions with the DSIs. Nothing in the Long-Term Extension Agreements compromise Oregon’s regulatory efforts. Oregon’s utilities remain subject to Oregon’s governance. E. TRANSMISSION AGREEMENTS’ COMPLIANCE WITH 42 U.S.C. § 4332(2) (E) 42 U.S.C. § 4332(2)(E) requires federal agencies to “study, develop, and describe appropriate alternatives to recommended courses of action in any proposal which involves unresolved conflicts concerning alternative uses of available resourees[.]” This requirement is independent of EIS requirements, and applies to a wider range of federal actions than do the EIS requirements. Bob Marshall Alliance v. Hodel, 852 F.2d 1223, 1229 (9th Cir.1988). Under this section, any proposed federal action involving unresolved conflicts as to the proper use of resources triggers NEPA’s consideration of alternatives requirement, whether or not an EIS is also required. Id. Petitioners argue that section 4332(2)(E) “required BPA to evaluate the general goal of fair and efficient access to the transmission system and not merely review the preconceived plan of extending the ‘Trial ’ wheeling agreements for fifteen years.” A fair review of the record demonstrates BPA compliance with section 4332(2)(E). The BP EIS considered many alternatives to long-term wheeling for the DSIs: (1) no long-term wheeling to DSI or retail loads; (2) long-term wheeling to DSI loads that comply with a Power Plan but no wheeling to retail loads; (3) long-term wheeling to DSI loads, but not retail loads; (4) long-term wheeling to serve DSI loads and service to other utilities’ major retail loads where legally feasible; and (5) short-term wheeling to all requesters that can arrange scheduling. Because BPA thoroughly considered alternatives, it did not violate 42 U.S.C. § 4332(2)(E). F. WAS BPA’S DECISION ARBITRARY AND CAPRICIOUS? APAC argues that BPA’s decision to execute a contract granting long-term transmission services to the DSIs was an arbitrary and capricious departure from established precedent unsupported by the record. Mindful of our obligation to give the Administrator broad discretion to contract to fulfill his varied statutory duties, we believe BPA’s business decision to execute the Long-Term Extension Agreements is more than amply supported by the record. The Long-Term Extension ROD fully explains BPA’s reasons for extending the Initial Transmission Agreements. In that ROD, BPA express its belief that its long-term business relationships with the DSIs were best served by providing them with wheeling services. Clearly this is a reasonable belief, particularly in light of the fact that the DSIs, able to cancel their BPA power contract for any reason on one years’ notice, could likely access BPA’s transmission system indirectly. Through the mechanism provided in the Energy Policy Act, 16 U.S.C. §§ 824j(a), 824k(i), a power producer from whom a DSI had agreed to purchase power could obtain access to BPA’s transmission system to wheel power to the DSI. Rather than forcing the DSIs into the arms of another power producer, BPA chose to short-circuit what appeared to be the inevitable, do voluntarily what FERC could have ordered it to do, and thereby foster a better commercial relationship with the DSIs. The fact that this voluntary agreement removes the transaction from FERC oversight does not derogate congressional intent. FERC procedures are primarily designed to regulate involuntary wheeling requests. After FERC receives a § 824j(a) request for transmission access it intends to grant, it will issue a proposed order which sets a time limit for the parties to agree to the terms and conditions of the order. 16 U.S.C. § 824k(c)(l). Any such agreement reached by the parties must be approved by FERC before it will be included in the final order. Id. If the parties do not agree, FERC will prescribe the terms and conditions governing the transmission access in the final order. Id. § 824k(c)(2)(B). The terms of any agreement should be subject to FERC review where one of the parties was forced into a relationship with the other. This requirement reflects Congress’s desire to provide “assurance to all persons that they will be treated fairly and compensated fully” if compelled to provide involuntary wheeling services. H.R.Rep. No. 496(IV), 95th Cong., 1st Sess. 152 (1977), reprinted in 1978 U.S.C.C.A.N. 7855, 8595. Where the relationship is wholly voluntary, however, there is no reason for FERC approval. Moreover, a theme of the Energy Policy Act was “to use the market rather than government regulation wherever possible both to advance energy security goals and to protect consumers!;.]” H.R.Rep. No. 474(1), 102d Cong., 2d Sess. 183 (1992), reprinted in 1992 U.S.C.C.A.N.1953,1956. Further, by providing the DSIs with long-term transmission access, BPA secures on a long-term basis the right to use the DSI loads as stability reserves for its entire system, a benefit it would have lost had the DSIs decided to purchase bundled power and transmission services elsewhere. Despite these positive attributes, several parties argue that the Long-Term Extension Agreements will result in BPA making less revenue, thereby having less to spend on its statutory environmental responsibilities. This challenge to the soundness of BPA’s business strategy is not persuasive. We are not to debate the wisdom of any BPA business decision unless that decision is so manifestly unreasonable as to rise to the level of being arbitrary and capricious. See, e.g., California Energy Comm’n, 909 F.2d at 1306. The decision to execute the Long-Term Extension Agreements was not. While providing wheeling services to the DSIs is clearly a change in BPA policy, that modification was neither unanticipated nor unexplained. The BP EIS examined both the unbundling of BPA’s power and transmission services in general and DSI wheeling in particular. Of the sections of the BP EIS describing issues “represent[ing] the heart of decisions BPA will make on how to conduct business in the future” were: (1) “Bundling or Unbundling of BPA Power Products and Services,” (2) “Unbundling of Transmission and Wheeling Services,” (3) “Transmission and Wheeling Pricing,” and (4) “Retail or DSI Wheeling.” In this last section, BPA explained that “BPA has not traditionally provided long-term wheeling over its transmission system to serve DSIs and does not provide any wheeling to retail loads of other utilities. However, this policy could be revised to allow such wheeling, as consistent with BPA’s statutory framework and other Federal and state laws.” In a section of the BP EIS devoted solely to this issue, BPA examined the issue of DSI wheeling in terms of each of the six policy alternatives BPA considered to guide its business direction for the indeterminate future. BPA described the contours of this issue under the Market-Driven alternative which BPA eventually chose: BPA would provide wheeling to DSI loads, but not to other retail loads.... Providing wheeling to DSIs would increase the DSI customers’ power options, and therefore potentially could reduce the amount of load for which BPA would have to acquire resources in the future. Providing wheeling to DSI loads could mean the loss of some Federal power sales revenue, but it would also reduce the revenue uncertainty associated with the relatively volatile DSI loads.... These issues were not analyzed on a short-term basis. It is implicit in the BP EIS and the BP that any alteration, when made, was to be for the foreseeable future. The Initial Transmission Agreements and the Long-Term Extension Agreements represented a policy change, but not an unexplained one. The Public Power Council argues that BPA has contractually diminished utilities’ statutory rights to BPA’s excess transmission capacity as guaranteed by section 6 of the Transmission Act, 16 U.S.C. § 838d. The Interim Transmission Agreements, and therefore also the Long-Term Extension Agreements, accord the DSIs the same priority to BPA’s available transmission capacity as public utilities and other producers of non-federal power in the Pacific Northwest. This concern is premature. The argument presumes that there will be insufficient capacity requiring allocation and that BPA will take action in violation of 16 U.S.C. § 838d. Without deciding whether those actions would violate 16 U.S.C. § 838d, we simply note that if and when that event occurs, the aggrieved utilities will have a remedy. The potential for future litigation on a disputed point is not sufficient for us to find that BPA acted arbitrarily or capriciously. II. PETITIONS FOR REVIEW OF THE BLOCK SALE CONTRACTS A. VIOLATION OF RATEMAKING PROCEDURES 1. Background Petitioners challenge the terms of the Block Sale Contracts as disguised ratemaking in derogation of ratemaking procedures mandated by the Northwest Power Act. Section 7(a) of the Northwest Power Act directs the Administrator to “establish, and periodically review and revise, rates for the sale and disposition of electric energy and capacity and for the transmission of non-Federal power.” 16 U.S.C. § 839e(a)(l). Section 7(i) prescribes specific procedures BPA must follow when establishing its rates. 16 U.S.C. § 839e(i). After notice of his initial proposed rate is published in the Federal Register, the Administrator is to conduct one or more hearings to receive public comment and develop a complete record upon which to base the final rate. Id. Any final rate the Administrator proposes must be approved by FERC before going into effect. Id. §§ 839e(a)(2), 839e(i)(6). These section 7(i) proceedings are also referred to as a “rate case.” By the fall of 1995, competition for the DSIs’ business was fierce. Many were considering attractive offers from alternative suppliers to serve their loads at prices below BPA’s rates. BPA was engaged in section 7(i) proceedings but did not expect to complete the ratemaking process for several more months, by which time BPA feared it would be too late, the DSIs having already accepted the competing offers. Recognizing the need to respond to these competing offers and the desirability of preserving the DSIs as BPA customers, and also of the prohibition on negotiating final rates outside the rate case, the Administrator included a rate target rather than an actual rate in the Block Sale Contracts. This provision created a “rate test”: if the section 7(i) proceedings resulted in a rate at or below the rate target, BPA would “pass” or “meet” the rate test, and the DSIs would remain bound to the Block Sale Contracts. If the proceedings produced a rate above the rate target, however, BPA would “fail” or “fail to meet” the rate test, in which case the DSIs would have three options: (1) terminate the Block Sale Contract on seven-days’ notice, terminate the 1981 Contract on seven-days’ notice, and use the rights to BPA’s transmission system it secured in the Long-Term Extension Agreement to wheel to it power purchased on the open market; (2) terminate the Block Sale Contract on seven-days’ notice and continue purchasing power under the 1981 Contract; or (3) purchase power under the Block Sale Contract at whatever rate BPA established in the rate case. BPA met the rate test. See 60 Fed.Reg. 36,464 (1996) (BPA’s final proposed rates from the 1996 rate case). 2. Contractual Terms Constituting “Rates” Petitioners first argue that the Block Sale Contract rate test mechanism violated the ratemaking procedures of section 7(i) because the “rate” which must be established in a rate case includes the terms and conditions applicable to the rate which materially affect the bargain struck. The Northwest Power Act does not define “rate,” and BPA’s own regulatory definition expressly provides that contractual terms and conditions are not part of the “rate.” Absent a statutory imperative, we must defer to BPA’s definition if reasonable. Chevron, 467 U.S. at 842-43, 104 S.Ct. at 2781-82. Thus, in order for Petitioner’s argument to prevail, we must find BPA’s definition of “rate” to be unreasonable. Since at least 1986, BPA has defined “rate” in the context of section 7(i) proceedings as follows: “Rate” means the monetary charge, discount, credit, surcharge, pricing formula, or pricing algorithm for any electric power or transmission service provided by BPA, including charges for capacity and energy---- A rate may be set forth in a contract; however, other portions of a contract do not thereby become part of the rate for purposes of these rules. Procedures Governing Bonneville Power Administration Rate Hearings § 1010.2(j), 51 Fed.Reg. 7611, 7615 (1986). BPA thus defines a “rate” as a monetary charge for the sale of electric power. Under this definition, contract terms and conditions that do not establish such monetary charges are not rates. This is a reasonable interpretation, and the plain language of the Northwest Power Act supports it. Section 7(a) commands the Administrator to establish “rates for the sale and disposition of electric energy and capacity and for the transmission of non-Federal power.” 16 U.S.C. § 839e(a)(l). This implies that rates are charges for the sale of power and transmission services rather than any quid pro quo for particular contractual purchase terms. Further, we have rejected a similar attempt to expand the meaning of rate. In CERCDC I, 831 F.2d at 1471, the petitioners argued that BPA’s adoption of its near-term interim Intertie access policy was a rate-making and thus required FERC approval before judicial review was available. The access policy established the conditions under which entities could access the Intertie. Id. We held that the policy was not a rate because it was not a “charge[ ] BPA imposes on its customers for the provision of service.” Id. at 1472 (quoting City of Seattle v. Johnson, 813 F.2d 1364, 1367 (9th Cir.1987)). Rather, a “ ‘rate’ when used in connection with public utilities [is a] ‘price stated or fixed for some commodity or service ... measured by a specific unit or standard.’” Id. (quoting Black’s Law Dictionary 1134 (5th ed.1979)). Additionally, BPA and the DSIs correctly note that every contract will have terms that may “materially affect the economic bargain struck,” but the Northwest Power Act nevertheless does not require BPA to engage in a section 7(i) proceeding whenever it enters into a contract. See California Energy Comm’n, 909 F.2d at 1305 (“[T]he mere fact that an agency action has an indirect effect 0n revenues does not mean that the action constitutes ratemaking.”). Rather, the section 7(i) proceeding is appropriate only when BPA is establishing a true rate. See California Energy Resources Conservation and Dev. Comm’n v. Johnson, 807 F.2d 1456, 1465 (9th Cir.1986) (“Section 7(i) does not require that contract provisions be adopted after full ratemaking proceedings. Rather, it requires that rates be set according to certain procedures.”). In support of their position, Petitioners direct our attention to several sources that define “rate schedule” to include terms and conditions. Department of Energy regulations define “rate schedule” as a document “which designates the rate or rates applicable to a class of service specified therein and may contain other terms and conditions relating to the service.” 10 C.F.R. § 903.2(n) (emphasis added). FERC