ISO-NE: New England Grid
ISO New England. Tracking winter reliability, gas constraints, and offshore wind development.
About ISO-NE
ISO New England operates the grid for Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont — serving 6.7 million homes and businesses. The region faces winter gas constraints, accelerating coal/oil retirements, and offshore wind integration. Capacity markets have been contentious, with Mystic generating station kept online via cost-of-service agreements for reliability.
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Winter Reliability & Gas Dependency
Cold snaps stress the gas pipeline system. When heating demand surges, gas-fired generators compete for fuel, which can create price spikes and reliability concerns. ISO-NE's Winter Reliability Program and fuel security initiatives remain central issues.
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Offshore Wind
Vineyard Wind, Revolution Wind, SouthCoast Wind, and other projects. Contract renegotiations, interconnection timelines, and the race to build New England's offshore fleet.
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Capacity Market Reform
Forward Capacity Market evolution. Resource adequacy in a changing generation mix. Capacity prices and their impact on project economics.
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Nuclear & Coal Retirements
Millstone (CT) as the region's last nuclear plant. Mystic closure impacts. The shrinking baseload fleet and what replaces it.
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Clean Energy Mandates
Massachusetts, Connecticut, and other states with aggressive clean energy targets. Renewable Portfolio Standards, storage mandates, and building electrification driving new load.