SunEdison built, owns and will maintain the solar system and will sell the output to the City’s Water Department under a long-term power purchase agreement.

The Alvarado installation has 6,128 photovoltaic solar panels located atop the concrete roofs of three water storage reservoirs and is expected to produce 1.602 GWh per year. The panels produce about 20% of the plant’s power demand, with annual electricity savings estimated at $40,000 and was developed at an estimated cost of $6.5 million.

The project is the first of a planned 5 MW of PV installations in the city and other potential San Diego sites are under investigation including the Otay Water Treatment Facility and the Black Mountain Reservoir.

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