Castro Valley Library


Solar Panel Installation to begin this week! by library1.5
Tuesday, November 9, 2010, 5:19 pm
Filed under: Building site, Libraries, News, Technology

The newest of Alameda County’s onsite solar power systems is being installed on the roof of the Castro Valley Library. This ambitious solar deployment, performed in conjunction with the many energy efficiency features at the Library is expected to provide nearly 100% of the energy used by the Library and will virtually eliminate Library’s cost of electricity from PG&E.
Alameda County’s Board of Supervisors awarded this project’s $1.7 million dollar contract to Sun Light and Power Corporation of Berkeley earlier this year. The project is being funded by a 1% loan from the California Energy Commission. These loan funds were made available under the 2009 American Recovery and Reinvestment Act. In addition, over the next five years, the County will receive $500,000 from PG&E under their California Solar Initiative Incentive Program. The loan will be paid back over the next 15 years with savings from the solar generated electricity.
The 270 watt system will consist of 880 modules manufactured by SunPower Corporation. The modules maximize the solar generation capacity of the library’s south-facing sloped roof. In fact, during most days, the system will produce more power than needed and will export excess renewable electricity to the surrounding neighborhoods. This electricity will credited back to the County by spinning its electric meter backwards.

A monitoring system that will display the solar array’s performance on a flat screened monitor will be installed in the Library lobby.

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