“The claim that wind projects in the U.S. are achieving 30% average capacity factors nationally [are] … not meaningful when considering that state RPS mandates are based on local resources. For states like New York and Pennsylvania, where average capacity factors are in the low- to mid- 20% range, many more wind turbines and related infrastructure (transmission) will be needed to meet RPS mandates than originally forecasted, resulting in increased costs and impacts.
Couple this with the fact that wind production in most states is seasonal with summer months producing at half that of winter months and also concentrated during periods of low demand (night time) — much of the energy arrives as excess energy making it less useful.”
This week, the U.S. Department of Energy announced it was revisiting the conclusions of its 2008 report, 20% Wind Energy by 2030.…