Alameda County Jail - Solar Project

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PowerLight and CMS Viron Energy Services have designed a solar photovoltaic system for Alameda County that can reduce peak power consumption by 20% without any expenditure from the general fund. Annual energy savings from the solar system and new efficiency investments are estimated to be at least $190,000 and may exceed $400,000 given recently approved retail electricity rate hikes. The 6,000 solar photovoltaic tiles being installed on six medium and minimum-security housing units at the Santa Rita Jail in Dublin, California will generate 500 kilowatts of power and will be the largest rooftop system in the U.S. The PowerGuard tiles do not require any perforations of the roof, but protect the roof membrane from weather and ultra-violet radiation. The project also reduces peak demand on the grid in a region where existing transmission line constraints pose reliability challenges.


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