National Grid would agreed to pay 20.7 cents per kilowatt hour starting in 2013 for electricity purchased from the 130-turbine Cape Wind project in Nantucket Sound. The cost of electricity from conventional sources is about 9 cents per kilowatt hour. The Cape Wind project is estimated to cost $2 billion. See full story at The Boston Herald. Don't be fooled with "renewable energy credits" or other gimmicks. This is going to cost a lot of money and ruin a beautiful part of cape cod. Is green really green if it costs twice as much and permanently ruins the environment? Does this make sense during these difficult economic times? ABC, Fox, CNN, Cape Wind.