New York Times: Cape Wind, the wind farm proposed for a 24-square-mile tract of Nantucket Sound off Cape Cod, Massachusetts, got its final government permit on Friday, 10 years after work on the project began. The project’s sponsors hope to begin construction this year, although they have not yet lined up a market for all of the electricity. Although Cape Wind’s electricity price will be 20.7 cents per kilowatt-hourâmdash;almost double the national average retail rateâmdash;it is hoped that it would deliver electricity during peak demand periods, when all prices are high. Matthew L. Wald discusses the project for the New York Times‘s Green blog.