The UMPI turbine had pretty poor wind for the first ten days of June. It generated just 11,621 kWh. If there was a perfect wind, if would generate 14,400 kWh in just one day (600 kW X 24 hrs)!
But the wind lately has been far from perfect; in fact, the UMPI turbine actually consumed grid power on June 7 (-10 kWh) and June 9 (-8 kWh). All this detail yields a Capacity Factor of just 8% for the ten-day period.
It is no wonder promoters of wind power avoid discussions of Capacity Factor whenever they can. According to the Federal Energy Regulation Commission, Maine's huge wind farms had Capacity Factor of just 24.72% for all of 2012.
Harrison Roper Houlton/Danforth