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CAPITOL LAKE PLAZA

Capitol Lake Plaza sits centrally on Pierre, South Dakota's government plaza. Originally built in 1974, the building underwent major energy renovations after being purchased by the state. SWT Energy installed a ballasted, rooftop photovoltaic array composed of 80, 300kW solar panels.

The system was funded by a grant from the American Recovery and Reinvestment Act. Preliminary estimates showed that by producing a portion of its own power, Capitol Lake Plaza would save the state nearly $37,000 a year on energy costs. 

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