Southern California Edison orders 200 MW of solar panels for utility scale project

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Rosemead, Calif., March 10, 2010 – SunPower Corp. won a contract to provide Southern California Edison with solar technology for generating up to 200 MW, or 80 percent, of the solar power capacity needed for the utility’s large solar photovoltaic installation program.

During the next five years, SCE plans to install, own and operate 250 MW of solar generating capacity, most of it on otherwise unused large warehouse rooftops.

The large one- to two-million-watt solar installations will be connected directly to neighborhood distribution circuits where the leased rooftops are located.

“The anticipated benefits of this agreement with SunPower include panel costs that will allow us to meet our commitment to increasing our customers’ supply of renewable energy while reducing the cost of installed solar photovoltaic power in California,” said SCE President John R. Fielder.

SCE is purchasing the SunPower T5 Solar Roof Tile product, which integrates into a single unit a solar panel, frame and roof mounting system, thereby reducing installation time and costs. In addition, the SunPower product was selected because it will allow SCE to produce more power per installation.

In a related development, on January 21, 2010, the California Public Utilities Commission approved the process to be used for a second track of solar installations that will double the size of SCE’s photovoltaic program.

Regulators previously directed SCE to conduct a competitive solicitation offering long-term power contracts to independent solar power providers willing to install an additional 250 MW of photovoltaic generation. SCE hopes to launch the solicitation later this month.

Eventually, the two installation tracks will add a total of 500 MW to the solar generating capacity of Southern California’s power resources.

The installations will speed up California’s deployment of solar generation while major new renewable energy transmission lines are being built such as SCE’s 4,500 MW Tehachapi Renewable Transmission Project.

SCE grid engineers will be studying the electrical effects of a high penetration of photovoltaics on distribution circuits and adapting circuits to accommodate these large installations. The information gained will be shared with the power industry.

Founded in 1985, SunPower Corp. designs, manufactures and delivers solar technology to residential, business, government and utility customers. With headquarters in San Jose, Calif., SunPower has offices in North America, Europe, Australia and Asia.

An Edison International company, Southern California Edison is one of the nation’s largest electric utilities, serving a population of nearly 14 million via 4.9 million customer accounts in a 50,000-square-mile service area within Central, Coastal and Southern California.


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The Clarion Energy Content Team is made up of editors from various publications, including POWERGRID International, Power Engineering, Renewable Energy World, Hydro Review, Smart Energy International, and Power Engineering International. Contact the content lead for this publication at

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