Photovoltaics (PV) or solar cells as they are often referred to, are semiconductor devices that convert sunlight into direct current (DC) electricity. Groups of PV cells are electrically configured into modules and arrays, which can be used to charge batteries, operate motors, and to power any number of electrical loads. With the appropriate power conversion equipment, PV systems can produce alternating current (AC) compatible with any conventional appliances, and operate in parallel with and interconnected to the utility grid.

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Standing atop San Francisco's largest water reservoir, Mayor Gavin Newsom today signed into law an ordinance that will lead to the construction of California's largest solar photovoltaic (PV) installation. Upon the project's completion in 2010, some 25,000 solar panels will line the roof of Sunset Reservoir, more than tripling San Francisco's total municipal solar energy output from 2 MW today to 7 MW.     Read more 

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Mayor Gavin Newsom today lauded the Board of Supervisors' approval of a five megawatt (MW) solar installation for the roof of the Sunset Reservoir. When completed in 2010, the project will be California's largest solar photovoltaic (PV) installation and more than triple San Francisco's total municipal solar energy output from 2 MW today to 7 MW. The Board's approval of a 25-year contract between the San Francisco Public Utilities Commission and San Francisco-based Recurrent Energy will deliver clean, renewable solar power for City municipal services and facilities, including public schools, San Francisco International Airport, SF General Hospital, Muni and more. The project will also create more than 70 local green jobs, including at least 21 jobs for individuals in the City's workforce development programs.     Read more 

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The Moscone Center solar system remains the City’s largest to date and is the cornerstone of over 2 megawatts (2,000 kW) of installed generation in the SFPUC’s growing PV solar portfolio.      Read more 

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