If the bill becomes law, billions of dollars’ worth of planned wind projects in the state may have to be scrapped, jeopardising growth across the US and creating huge uncertainty for the future.

Specifically, Bill 931 would end the state’s renewable portfolio standard (RPS) — significantly reducing developers’ income from renewable-energy certificates (RECs) — and would cancel the $6.9bn Competitive Renewable Energy Zone (CREZ) programme, the nation’s most successful expansion of high-voltage transmission lines, more than 2GW of capacity short of what the state had promised.