Public Utility Commission v. Constellation Energy Commodities Group, Inc.

351 S.W.3d 588, 2011 Tex. App. LEXIS 7855, 2011 WL 4507330
CourtCourt of Appeals of Texas
DecidedSeptember 28, 2011
Docket03-09-00417-CV
StatusPublished
Cited by7 cases

This text of 351 S.W.3d 588 (Public Utility Commission v. Constellation Energy Commodities Group, Inc.) is published on Counsel Stack Legal Research, covering Court of Appeals of Texas primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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Public Utility Commission v. Constellation Energy Commodities Group, Inc., 351 S.W.3d 588, 2011 Tex. App. LEXIS 7855, 2011 WL 4507330 (Tex. Ct. App. 2011).

Opinion

OPINION

DAVID PURYEAR, Justice.

On November 14, 2006, Constellation Energy Commodities Group, Inc. (“Constellation”) filed a complaint with the Public Utility Commission of Texas (“the Commission”) against the Electric Reliability Council of Texas (“ERCOT”) alleging that two of ERCOT’s protocols 1 were contradictory and inconsistent and that ERCOT had improperly assessed charges against Constellation from April 10, 2006, to September 27, 2006, using the inconsistent protocols. Luminant Energy Company *591 LLC f/k/a TXU Portfolio Management Company LP and Luminant Generation Company LLC f/k/a TXU Generation Company LP (“Luminant”), as well as City of Austin d/b/a Austin Energy, City of San Antonio d/b/a CPS Energy, Reliant Energy Power Supply, LLC, and Lower Colorado River Authority (“Joint Intervenors”) intervened in the proceeding in support of ERCOT. After the Commission referred the case to the State Office of Administrative Hearings (“SOAH”), the administrative law judge (“ALJ”) agreed with Constellation that the protocols in question were inconsistent and recommended the Commission require ERCOT to resettle the charges. The Commission rejected the ALJ’s recommendation, determining instead that ERCOT had correctly settled the capacity insufficiency charges in accordance with the protocols then in effect. Constellation filed suit for judicial review in district court, which reversed the Commission’s determination that ERCOT had correctly assessed the charges against Constellation. This appeal followed.

Luminant, the Joint Intervenors, and the Commission argue the district court erred by failing to defer to the Commission’s construction of the protocols and its conclusion that ERCOT properly assessed charges. Luminant and the Joint Interve-nors further contend Constellation’s case is an impermissible collateral attack on a final Commission order. As a conditional cross-point, Constellation asserts ERCOT cannot assess an under-scheduling charge that is over and above its actual procurement costs.

For the reasons set forth below, we reverse the trial court’s judgment and render judgment affirming the Commission’s final order.

FACTUAL AND PROCEDURAL BACKGROUND

Since the implementation of retail choice in Texas in 2002, retail providers of electricity, in general, meet their customers’ demand by entering into bilateral contracts with generation owners and power marketers. ERCOT is the independent organization the Commission has certified as responsible for, among other things, ensuring the reliability and adequacy of the electric grid, as well as establishing, scheduling, and overseeing transaction settlement procedures. See Tex. Util.Code Ann. § 39.151 (West 2007).

Under ERCOT rules (“protocols”) in effect on the disputed trade days, a qualified scheduling entity (“QSE”) on the retailer’s behalf engaged in bilateral contracts with generation owners and power marketers and submitted a schedule to ERCOT demonstrating that its expected demand was equal to the amount of generation it had procured to meet that demand. When the QSE’s scheduled demand exceeded its scheduled supply or when its actual demand exceeded the amount of generation it had procured, the QSE was “under scheduled.” QSEs under scheduled for several reasons: inaccurate load forecasting, a change in real-time conditions, or a strategic decision to rely upon ERCOT as a Resource to cover a portion of a QSE’s Load. 2

*592 Consumption rarely matches generation exactly, so ERCOT’s protocols authorized it to procure “ancillary service” to address actual or anticipated imbalances. 3 Ancillary services consist of various forms of “capacity” — the commitment of generation resources to be available for production in a given operating period — and “energy”— the real-time provision of electricity. When a QSE under scheduled, ERCOT obtained ancillary services to address anticipated generation shortfalls.

QSEs were permitted to schedule purchases of power from generators located far from the demand or Load scheduled by the QSE. When too many of those transactions occurred, transmission routes between major consumption centers could become “congested.” 4 The most commonly congested transmission routes effectively determined geographic “zones,” usually identified by ERCOT as the North, West, South, and Houston zones, which required separate balancing by ERCOT. Congestion also prevented some inter-zonal transactions from occurring, which obligated ERCOT to procure expensive power in the zone where the load was scheduled to ensure that sufficient electricity existed to meet demand. Thus, when a QSE submitted a schedule that was balanced on a system-wide basis but unbalanced within one or more zones, ERCOT still might have incurred costs for ancillary services to resolve that intra-zonal capacity imbalance.

One of the ancillary services ERCOT used to resolve projected imbalances was a form of capacity called “replacement reserve service” (“RPRS”), which required an owner of an off-line generation resource to make that unit available for ERCOT’s use, if necessary, during a particular hour of market operation. ERCOT procured RPRS through a day-ahead auction for each operating hour, and winning bidders were paid the market-clearing price for electricity.

Different ERCOT protocols controlled the procurement, compensation, and settlement of RPRS. Section 6.6, entitled “Selection Methodology,” governed ERCOT’s acquisition of various ancillary services. See ERCOT Zonal Protocols § 6.6 (March 2006 Protocols Update 2, March 21, 2006), available at http://www.ercot.com/ mktrules/protocols/hbrary/2006. 5 Section 6.6.3.2.1, “Specific Procurement Process Requirements for [RPRS] in the Adjustment Period” (hereinafter the “RPRS procurement protocol”), detailed the circumstances and process under which ERCOT obtained RPRS for each operating hour. See id. § 6.6.3.2.1. That protocol required ERCOT to procure RPRS to rectify capacity insufficiency, zonal transmission congestion, and local transmission congestion.

Because it costs a generator money to start up a unit and keep it running at the minimum level necessary to ensure that power could be delivered if customer load demanded more energy, ERCOT’s procurement of RPRS capacity resulted in costs, regardless of whether any energy from the committed Resource was actually *593 sold on the market. Even though a QSE submitted a schedule that was balanced on a system-wide basis, ERCOT may also have incurred costs if the schedule was imbalanced within one or more zones. Those costs occurred because, to balance a particular zone, ERCOT may have procured power from a generator within that zone that was more expensive than if a generator from outside the zone had been utilized.

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351 S.W.3d 588, 2011 Tex. App. LEXIS 7855, 2011 WL 4507330, Counsel Stack Legal Research, https://law.counselstack.com/opinion/public-utility-commission-v-constellation-energy-commodities-group-inc-texapp-2011.