Yuma Cogeneration Associates on Oct. 13 filed with the Federal Energy Regulatory Commission a notice of self-certification as an exempt wholesale generator.
Yuma owns and operates a 55.1 MW (nameplate) natural gas-fired topping-cycle cogeneration facility located in Yuma, Arizona. It consists of one General Electric Frame 6 natural gas-fired combustion turbine generator, one heat recovery steam generator with supplemental firing, and one extraction/condensing steam turbine generator. The facility commenced commercial operation in 1994.
The facility is interconnected with the transmission system owned and operated by Arizona Public Service (APS). It is currently certified as a qualifying facility (QF) under the Public Utility Regulatory Policies Act of 1978. Yuma sells all of the facility’s electrical output to San Diego Gas and Electric (SDG&E) under a long term power purchase agreement that was amended and restated as of August 2014. Yuma was granted market-based rate authority in December 2007. It didn’t say why it is seeking EWG status this many years later.
Yuma’s managing partner is California Energy Development Corp. (CEDC), which owns 50% of the partnership interests in Yuma. The remaining 50% is owned by California Energy Yuma Corp. (CEYC). Both CEDC and CEYC are indirect, wholly-owned subsidiaries of CE Generation LLC. CE Generation is a direct wholly-owned subsidiary of BHE Geothermal LLC, which is a direct, wholly-owned subsidiary of BHE Renewables LLC, which in turn is a direct, wholly-owned subsidiary of Berkshire Hathaway Energy Co.
A company contact is: Robert D. Garman, Assistant General Counsel, BHE Renewables LLC, 666 Grand Avenue, Suite 500, Des Moines, Iowa 50309, (515) 281-2354, rgarman@BHErenewables.com.
San Diego Gas and Electric recently did a major contract change for this plant
Incidentally, up for review at the Sept. 17 meeting of the California Public Utilities Commission was a resolution that would approve a San Diego Gas and Electric request for an amendment and restatement of its power purchase agreement with Yuma Cogeneration Associates. The resolution was approved by the commission that day on a unanimous vote.
“This Resolution approves, without modification, the amended Power Purchase Agreement (PPA) executed between San Diego Gas and Electric Company (SDG&E) and Yuma Cogeneration Associates (YCA), a combined heat and power (CHP) facility with which the utility has had an existing PPA since 1990,” it said. “The amended PPA, filed via Advice Letter (AL) 2674-E, was executed in August 2014 as a result of bilateral negotiations beginning in April 2013.”
The resolution added: “The YCA facility is currently under contract with SDG&E to deliver ‘must-take’ power. Under the amended PPA approved herein, the facility will be converted to a dispatchable Utility Prescheduled Facility (UPF) under the QF/CHP Settlement. The amended PPA also provides energy and other cost savings. … SDG&E and YCA currently have an in-effect agreement based on the Standard Offer 2 (SO2) that expires May 27, 2024. Negotiations leading to the currently proposed amended PPA began in April 2013 and the parties finalized the terms and conditions between January 2014 and August 2014. … The amended PPA does not change the existing expiration date. In addition to changing the facility to a UPF, the amended PPA changes fuel terms, contract pricing, and other terms.
“YCA is located in Yuma, AZ and has operated as a Qualifying Facility (QF) supplying electricity to SDG&E (and steam to its host, Shaw Industries Yarn Mill) since the 1990s. The facility consists of a natural gas-fired combustion turbine and a heat recovery steam generator (HRSG). HRSG-generated steam powers a 20.6 MW steam turbine generator, used by the host for manufacturing and maintenance. An auxiliary boiler provides steam when the cogenerator is not dispatched or operating.”