OPINION OF THE COURT
In May 1996, respondent Public Service Commission (hereinafter the PSC) issued an opinion mandating the restructuring of the electric utility industry within the state (see, 1996 NY PSC Op No. 96-12). Among the goals of the reorganization was increased competition and deregulation within the industry, with an eye to greater consumer choice and an overall reduction of energy rates (see, id.; see also, Matter of Energy Assn. of N.Y. State v Public Serv. Commn. of State of N.Y., 169 Misc 2d 924, affd 273 AD2d 708, lv denied 95 NY2d 765). Pursuant to the PSC’s opinion, the state’s electrical suppliers and retailers, including respondent Consolidated Edison Company of New York, Inc. (hereinafter Con Ed), were ordered to file rate/ restructuring plans.
In September 1997, Con Ed and other parties entered into a negotiated settlement (hereinafter the 1997 settlement), later
Thereafter, in anticipation of the expected start-up of the NYISO, Con Ed filed an implementation plan and rate structure for phase three of its retail access program. Following extensive public comment, the PSC ultimately issued orders dated February 28, 2000 and April 13, 2000. The orders allowed Con Ed to recoup its market costs for energy by imposing a Market Supply Charge (hereinafter MSC) upon its full-service customers only. In contrast, all of Con Ed’s ratepayers, whether full-service or delivery only, could be subject to a Monthly Adjustment Clause charge (hereinafter MAC) aimed at passing on Con Ed’s strandable costs to the consumer. Under this MSC/MAC system, New York City and Westchester County consumers pay uniform MSC rates because the MSC is tied to full-service rates that are essentially equal. However, as relevant here, the PSC specifically authorized the MAC to be higher in Westchester County than in New York City, resulting in higher delivery rates for Westchester County customers. The higher delivery rates reportedly act to offset the higher energy supply costs experienced in New York City. Because of the delivery rate disparity, Westchester County estimates that
In June 2000, petitioners commenced a combined CPLR article 78 proceeding and declaratory judgment action challenging the PSC’s February and April 2000 orders. By judgment entered February 13, 2001, Supreme Court (Cobb, J.) dismissed the petition and declared that the PSC acted rationally. During the pendency of the above proceeding, Con Ed and the PSC entered into an additional settlement agreement concerning, inter alia, Con Ed’s merger with another utility. In its order, the PSC allowed the MAC mechanism to continue, but nonetheless permitted petitioners and Con Ed “to proceed in the separate proceeding on the MAC delivery rate differential issues” (2000 NY PSC Op No. 00-14, at 31). Later, in November 2000, the PSC labeled Con Ed’s tariff filings (which implemented the MAC) “permanent,” but again noted that Westchester County’s concerns in reference to the MAC would be addressed in a separate proceeding (see, Pub Serv Commn Order Allowing Tariff Amendments to Become Permanent, Case 96-E-0897 [Nov. 30, 2000]).
In March 2001, petitioners
Turning to the merits, petitioners maintain that the MAC delivery charges reflected in the challenged PSC opinions which are not based on usage discriminate against ratepayers in Westchester County in favor of New York City ratepayers within the same class in violation of Public Service Law § 65 (3) (see, Matter of Lefkowitz v Public Serv. Commn., 40 NY2d 1047). It has been held that “rate discrimination can be countenanced only if it is either cost-justified or if some other rational basis is to be found in the record” (Matter of New York State Council of Retail Merchants v Public Serv. Commn. of State of N.Y., 45 NY2d 661, 669; see, Matter of Multiple Intervenors v Public Serv. Commn. of State of N.Y., 154 AD2d 76, 80; Matter of Forbes Personnel v Public Serv. Commn., 74 AD2d 690, 691; Matter of Oil Heat Inst. of Long Is. v Public Serv. Commn. of State of N.Y., 72 AD2d 829, 830, lv denied 49 NY2d 707). Upon review of the record, we conclude that a sufficient rationale for the delivery rate disparity has been stated.
Notably, at the time of the PSC’s initial orders, the NYISO had for the first time established, on the basis of actual market prices, differing commodity prices for Westchester County and New York City. This resulted in New York City residents paying roughly two cents per kilowatt hour more for the generation of their electricity than their Westchester County counterparts. Fearing the “disruptive and unacceptable
Turning next to the matters raised in petitioners’ second petition, we initially conclude that Supreme Court (Keegan, J.) correctly determined that certain aspects of the petition were barred by the doctrine of collateral estoppel. The doctrine applies where the party seeking to invoke it can prove “that the identical issue was decided in the prior action and is decisive in the current action, and that the party to be precluded from relitigating the issue had a full and fair opportunity to contest the prior determination” (New York State Dam Ltd. Partnership v Niagara Mohawk Power Corp., 222 AD2d 792, 794, lv dismissed and denied 87 NY2d 1041). Here, our review of the March 2001 petition reveals that petitioners specifically attacked that portion of the November 2000 order that continued the practice of differentiating delivery rates in Westchester County and New York City and, thus, sought to relitigate the propriety of the MAC as imposed upon these localities. That was an issue previously adjudicated, upon petitioners’ application, by Supreme Court in its February 13, 2001 judgment. Although the latest PSC determination refers to the MAC as “permanent” (Pub Serv Commn Order Allowing Tariff Amendments to Become Permanent, Case 96-E-0897, at 4 [Nov. 30, 2000]), this distinction is not dispositive especially since, as previously noted, the issue of disparate delivery rates remains open for PSC consideration.
As for those claims in the March 2001 petition which were transferred to this Court, petitioners’ fifth and sixth
The remaining arguments raised by petitioners have been examined and found to be unpersuasive.
Mercure, Spain, Carpinello and Mugglin, JJ., concur.
Ordered that the judgments are affirmed, without costs.
. These unavoidable costs include losses from the sale of assets mandated by the agreement and the cost of energy purchased under preexistent contracts at a price in excess of current market prices.
. Despite the pendency of this proceeding, the parties do not argue that consideration of the propriety of the MAC, which has already been implemented, is not ripe for review.
. We note that although various members of the Westchester County Board of Legislators were named as petitioners in the June 2000 proceeding/ action, they are not included in the second proceeding/action. Since this distinction is not significant, the term “petitioners” in the decision will collectively refer to all named petitioners.
