06/04/2026
New England had to turn to oil-fired power during a heat wave in May, before the hardest part of the season even started.
As temperatures climbed on the 19th and 20th, gas supply was constrained and the region leaned on older backup resources. At one point, oil reportedly produced more than 700 megawatts of electricity, enough to power hundreds of thousands of homes. It came hours after the grid operator declared abnormal conditions.
When demand rises and gas supply is tight, the grid relies on whatever is available, and in New England that often means its oldest, most expensive, most polluting plants. Every battery, clean generation project, efficiency gain, and demand-response resource that comes online gives the region another option to reach for before those oil plants are needed.
More than 8,000 megawatts of solar now shaves the region's peak, shifting the highest-demand hour later into the evening. Over the past year New England has added the New England Clean Energy Connect transmission line, the Vineyard Wind offshore project, and several grid-scale batteries. Each of those is capacity the grid doesn't have to make by burning oil.
The North American Electric Reliability Corporation, which assesses grid reliability across the continent, has already flagged New England as one of three regions facing elevated risk if extreme summer conditions hit. Reliability depends on what gets built ahead of time, not what we wish we had once temperatures spike.
May was early in the year for this. Demand only climbs from here.