The 19.8 megawatt (MW) Patterson Pass wind energy project is located in the Alameda County portion of the Altamont Pass Wind Resource Area east of San Francisco.

The Patterson Pass Wind Project is a repowering effort whereby older technology is upgraded allowing for increased generation of clean energy with fewer wind turbines. Approximately 300 Nordtank and Bonus 65kW turbines, originally installed in 1985, will be removed as part of the development process.

"Patterson Pass is another example of utilizing modern siting practices along with advanced turbine technology to improve efficiency and environmental considerations," said Rick Miller, Director of Wind Business Development at EDF Renewable Energy. "The modernization of older "legacy" projects is an important component of our overall development portfolio. Patterson Pass will see a 96% reduction in the number of wind turbines, which demonstrates our ongoing environmental stewardship of the site and surrounding area."

EDF Renewable Energy will develop, own and operate the wind project with SCE purchasing the power generated. Commercial operation is anticipated for the end of 2015. EDF Renewable Services will continue to operate and maintain the project.