PHOENIX, Jun 05, 2008 -- BUSINESS WIRE

Arizona Public Service (APS) is requesting proposals for new sources of renewable energy generation. The energy sought must provide at least 35,000 megawatthours and be available sometime between 2009 and 2013. The Request for Proposal (RFP) includes solar, wind, biogas, landfill gas, biomass, geothermal, hybrid wind and solar, renewable natural gas and hydropower technologies.

Interested parties are encouraged to participate in a bidder's teleconference on Wednesday, June 25, 2008. Additional information about the teleconference and the RFP is available online at www.aps.com/rfp.

The energy procured from this request will help APS meet its growing demand for energy.

APS conducted a similar process in 2007 which resulted in several new renewable energy contracts. The most notable is the 280-megawatt (MW) Solana Generating Station, which will be located 70 miles southwest of Phoenix, near Gila Bend, Ariz.

APS currently provides its customers with 131.5 MW of renewable energy, enough to power more than 37,000 homes. With the addition of Solana, APS will provide enough renewable energy to serve 100,000 homes.

APS, Arizona's largest and longest-serving electricity utility, serves about 1.1 million customers in 11 of the state's 15 counties. With headquarters in Phoenix, APS is the largest principal of Pinnacle West Capital Corp. (NYSE: PNW).

SOURCE: APS

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