The first project to take advantage of a $100 million bond for renewable energy endeavors in the city of San Francisco is about to get under way. The roof of the Moscone Convention Center will soon be covered with 65,000 sq ft of photovoltaic solar panels.

The $7.4 million project, which is expected to produce 825,000 kWh each year, could cut the convention center’s annual utility bill by $639,000. The power produced by the 675kW array will be used within the building.

The San Francisco Public Utilities Commission has also begun planning a 300kW array for the roof of a city-owned and operated wastewater treatment plant.