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march 11, 2016​
aps issues all source rfp for additional capacity

PHOENIX – Arizona Public Service Co. (APS) issued today an “all source” request for proposals (RFP) seeking capacity resources to help meet its customers’ peak energy needs.

APS is seeking approximately 400-600 megawatts (MW) of capacity. This RFP is open to all technologies, including supply side and non-supply side resources. Proposed projects must be able to begin delivery no later than June 1, 2020. The entire RFP process will be monitored and reviewed by a third-party independent monitor.

The RFP, together with important information about proposal requirements and bidder registration, is now available online at

APS, Arizona’s largest and longest-serving electricity utility, serves nearly 1.2 million customers in 11 of the state’s 15 counties. With headquarters in Phoenix, APS is the largest principal subsidiary of Pinnacle West Capital Corp. (NYSE: PNW).