Posted on February 01,2015 by ScottG in photovoltaic
Residential photovoltaic systems often have a capacity of less than 10,000 watts, or 10 kW — which is usually enough to cover the needs of a single family. Commercial PV installations, on the other hand, are big and getting much bigger.
At a data center in Maiden, N.C., Apple says it has finished a 20-megawatt array that covers 100 acres of land and produces 42 million kWh of energy per year. The company is adding a second 20 MW array that's expected to be operating by late this year plus a 10 MW fuel cell.