Singapore-based solar panel manufacturer Bila Solar is suspending plans to double capacity at its new factory in Indianapolis. Canadian rival Heliene’s plans for a solar cell facility in Minnesota are under review. Norwegian solar wafer maker NorSun is evaluating whether to move forward with a planned factory in Tulsa, Oklahoma. And two fully permitted offshore wind farms in the U.S. Northeast may never get built.

These are among the major clean energy investments now in question after Republicans agreed earlier this month to quickly end U.S. subsidies for solar and wind power as part of their budget megabill, and as the White House directed agencies to tighten the rules on who can claim the incentives that remain.

This marks a policy U-turn since President Donald Trump’s return to office that project developers, manufacturers and analysts say will slash installations of renewable energy over the coming decade, kill investment and jobs in the clean energy manufacturing sector supporting them, and worsen a looming U.S. power supply crunch as energy-hungry AI infrastructure expands.

Solar and wind installations could be 17% and 20% lower than previously forecast over the next decade because of the moves, according to research firm Wood Mackenzie, which warned that a dearth of new supplies could slow the expansion of........

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