Five floating turbines will be built off the coast of the island, which currently relies on diesel generators for its power—and pays a dollar more per gallon than the mainland does to get it. Those turbines will be connected to an undersea power cable that links not just the island, but to the US mainland.

The result will be a huge price drop in the islanders’ electricity bills, and an influx of clean energy piped into the grid from across the sound. The 30 megawatt plant is expected be generating power for thousands of New England homes by fall next year.

via The US’s First Offshore Wind Farm Will Slash Local Power Prices by 40 Percent | Motherboard.