Increasingly, it seems that developments that favor the environment, once feared to be cost prohibitive, are turning out to be excellent financial investments. Take Vineyard Wind. When complete, the first major offshore wind farm in the U.S., located 14 miles south of Martha’s Vineyard, will generate electricity at 6.5 cents per kilowatt hour, less than half the cost of conventional electricity. Customers will save $1.4 billion on their electric bills over the next 20 years. Shocked at such low costs? They’re attributable to larger turbines (longer blades as advanced by R&D activities at the Architerra-designed Massachusetts Wind Technology Testing Center in Boston), together with tax incentives and healthy competition. Massachusetts legislators know a good buy when they see one, having recently voted to double the amount of offshore wind power that public utilities must buy. Vineyard Wind has filed for permits to enable construction starting in 2019. Prepare to be “blown away” by wind power.