APS 2013 Annual Report Download - page 16

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Table of Contents
Renewable Energy Portfolio. To date, APS has a diverse portfolio of existing and planned renewable resources totaling 1175 MW, including
solar, wind, geothermal, biomass and biogas. Of this portfolio, 1074 MW are currently in operation and 101 MW are under contract for development or are
under construction. Renewable resources in operation include 137 MW of facilities owned by APS, 629 MW of long-term purchased power agreements, and
an estimated 308 MW of customer-sited, third-party owned distributed energy resources.
APS’s strategy to achieve its RES requirements includes executing purchased power contracts for new facilities, ongoing development of distributed
energy resources and procurement of new facilities to be owned by APS. APS is developing owned solar resources through the AZ Sun Program. Under this
program to date, APS estimates its investment commitment will be approximately $695 million. See Note 3 for additional details about the AZ Sun Program,
including the related cost recovery.
The following table summarizes APS’s renewable energy sources currently in operation and under development. Agreements for the development and
completion of future resources are subject to various conditions, including successful siting, permitting and interconnection of the projects to the electric grid.
13