Regional Climate Alignment
Massachusetts’ long-term climate objectives are broadly consistent with those adopted by neighboring New England states and many other jurisdictions across the United States and internationally. While individual states differ in their statutory frameworks, interim milestones, and implementation strategies, the region shares a common direction toward substantial greenhouse gas emissions reductions, expanded electrification, and net-zero or carbon-neutral economies by mid-century. Connecticut, Rhode Island, Maine, Vermont, and New York have each adopted comprehensive climate legislation or statewide planning frameworks that establish similar long-term decarbonization objectives.
This alignment is particularly relevant because New England operates as an interconnected electric system through Independent System Operator New England (ISO-NE), where electricity generation, transmission planning, and wholesale electricity markets are coordinated on a regional basis. Although each state establishes its own climate policies and energy priorities, achieving long-term decarbonization will increasingly benefit from collaboration in areas where common challenges exist, including transmission development, supply chains, workforce development, research and innovation, and technology evaluation.
The shared commitment to deep decarbonization across the Northeast provides opportunities for Massachusetts to both contribute to and benefit from regional planning, innovation, and knowledge sharing.
New England’s electricity restructuring began in the 1990s, and ISO New England launched competitive wholesale markets in 1999. Most regional generation investment is therefore shaped through wholesale markets, state procurements, bilateral agreements, and private investment rather than through the long-term integrated-resource plan of a single vertically integrated utility. ISO-NE coordinates wholesale markets, transmission planning, and resource adequacy across six states, while individual states retain authority over climate policy, procurement, siting, and economic development.
The regional context now combines ambitious state decarbonization commitments, increasing electrification, extensive energy efficiency, rapidly growing behind-the-meter solar, proposed offshore wind and storage, winter fuel constraints, and a competitive market that does not assign one utility responsibility for developing a prescribed long-term generation portfolio. These characteristics distinguish New England from utility territories in which a vertically integrated utility or public power authority can directly plan and finance new generation.
Advanced Nuclear and Fusion Coordination
The New England Governors’ joint statement on exploring advanced nuclear energy technologies is as an important milestone in advanced nuclear and fusion policy and regional coordination.
On March 31, 2026, Massachusetts Governor Maura Healey joined the five other New England governors to issue a joint statement outlining their regional commitment to exploring advanced nuclear energy technologies and continuing to support the regions existing nuclear facilities.
This support is especially important considering the fact that Millstone Power Station in Connecticut and Seabrook Station in New Hampshire currently provide approximately one-quarter of New England’s electricity with about 3.3 gigawatts (GW) of nuclear capacity.
Regional Assets as Extensions of Massachusetts Readiness
| Regional asset | Capability available to Massachusetts | Strategic relevance |
|---|---|---|
| Millstone Nuclear Power Station — Connecticut | Commercial reactor operations, maintenance, radiation protection, emergency preparedness, and technician workforce. | Operating experience, commercial nuclear career pathways, and firm regional generation. |
| Seabrook Station — New Hampshire | Commercial reactor operations, maintenance, and nuclear workforce. | Operating experience and an existing source of firm clean electricity for the regional grid. |
| University of Rhode Island (URI) / Rhode Island Nuclear Science Center — Rhode Island | Research reactor, nuclear engineering, radiation science, and training. | Shared research, education, and workforce development. |
| Electric Boat / submarine industrial base — Connecticut and Rhode Island | Nuclear-qualified engineering, systems integration, manufacturing, and skilled trades. | Transferable nuclear-quality manufacturing, supplier, and workforce capability. |
| Portsmouth Naval Shipyard — Maine | Nuclear-submarine overhaul, radiological work, machining, welding, nondestructive examination, and industrial controls. | Nuclear-quality workforce, lifecycle maintenance experience, and pathways for experienced military and civilian workers. |
| Legacy and decommissioning sites across New England | Decommissioning, environmental monitoring, spent-fuel stewardship, radiation protection, and regulatory experience. | Practical nuclear-lifecycle experience and long-term stewardship capability. |
| Massachusetts research and fusion assets | Research reactors, fusion demonstration, computing, innovation, capital, and advanced technology. | Connects regional nuclear experience with research, commercialization, and emerging technologies. |