HB690 directs the state Department of Energy to investigate whether New Hampshire should withdraw from ISO New England and explore other strategies to protect ratepayers from bearing the costs of other New England states' environmental policies. The study was required to examine ISO New England's functions; what the state or utilities would need to replace them; and the potential costs, benefits, and economic consequences of leaving.

The New Hampshire State House of Representatives passed HB690 on June 12, 2025 by a vote of 188 to 155. We have assigned pluses to the ayes because ISO New England, whose mission is a globalist dream ("Reliable Electricity. Competitive Prices. Clean-Energy Transition.") aims to transition the region to green energy and "decarbonize the economy," right in line with the United Nations' Agenda 2030. Its authority is entirely federal, and stems from the Federal Energy Regulatory Commission (FERC), which has rulemaking authority. All of this is blatantly unconstitutional and violates state sovereignty. This legislation is a step toward in hopes of New Hampshire regaining its sovereignty and energy independence.