CCAC Announces Third and Most Extensive Clean Energy Installation The 540-kilowatt solar array will save Community College of Allegheny County over $750,000 in energy costs in less than 30 years. January 15, 2021 RENDERING COURTESY COMMUNITY COLLEGE OF ALLEGHENY COUNTY Community College of Allegheny County is further committing to solar power by giving the go-ahead to its third and biggest solar panel installation yet. The new array will cover the roof of the North Campus building in McCandless and produce more than half a megawatt, or 540 kilowatts, of energy. To compare, CCAC’s two current solar arrays generate 15 and 64 kilowatts. CCAC is predicted to save about $27,000 in energy costs a year, which equates to $750,000 over the next 28 years.