Monthly Wind Generation In ISO-NE Is About 68% Higher Than Last Year

Wind power is picking up fast across New England. Through the first nine months of 2026, monthly wind generation in the region covered by ISO New England, the grid operator for Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont, ran about 68% higher on average than the same months in 2025. September was the strongest month yet, with 668.9 gigawatt-hours generated, more than double September 2025 and nearly 10% above this year's previous high in March.

The jump comes from more wind turbines being built, not just windier weather. Wind capacity in the region grew 47% so far in 2026, reaching 2.5 gigawatts, after a 12% increase in 2025. Daily generation also hit a new peak on October 6, at about 47.3 gigawatt-hours, just above the prior record set in September. For the year through September, total wind generation reached 4,619 gigawatt-hours, nearly 2% more than the same period last year.

For homeowners in New England, this is mostly background news about where the region's electricity is coming from, rather than something that changes your own home directly. More wind on the grid can mean a cleaner mix of power feeding your house, which matters if you're weighing electric upgrades like heat pumps or induction stoves and want to know how clean the electricity behind them is. It doesn't by itself affect rebates, rates, or any decision about your own equipment.