As of December 31, 2017 the Berkshire Wind Power Project completed 79 months of operation. The operating statistics as of December 31st were:
Capacity factor since COD - 36.9%
Capacity factor for the past 12 months - 37.7%
The December 2017 capacity factor of 46.5% is slightly below average. The average capacity factor for the month of December since COD is 48.4%.