Here’s how offshore wind helped New England beat record heat

During this month's heat wave, New England leaned less on oil-burning power plants thanks to new offshore wind farms and other clean energy sources coming online in the past year. Two wind projects, Vineyard Wind off Massachusetts and Revolution Wind off Rhode Island, delivered hundreds of megawatts to the grid as air conditioners ran full blast. On July 2, the hottest day of the heat wave, oil supplied about 10 percent of the region's power at peak demand, down from nearly 15 percent during a comparable hot stretch in June 2025. Over a four-day heat wave in early July, the region burned 37 percent less oil-fired power than it did during last year's heat wave.

Other factors helped too: a new transmission line carrying hydropower from Canada into Maine started up in January, and widespread rooftop solar cut overall demand. Wind speeds are usually weaker in summer than winter, but this heat wave showed offshore turbines still matter on the hottest days, with more heat expected this week.

For homeowners, this doesn't change any specific program or rebate, but it's a sign of how the region's power supply is shifting. Less reliance on oil-burning "peaker" plants, which run only during high-demand periods and are costly to operate, can help ease pressure on electricity prices over time, though your utility bill still depends on many local factors. The Trump administration has repeatedly tried to block offshore wind construction, including paying some developers to cancel future projects, so growth beyond the current wind farms may be limited in coming years.