President Donald Trump said Wednesday that his administration will not approve new solar or wind power projects, even as parts of the U.S. face growing electricity demand and tightening supply.

“We will not approve wind or farmer destroying Solar,” Trump wrote on Truth Social, repeating past complaints that solar consumes too much land. “The days of stupidity are over in the USA!!!”

The comments follow the administration’s decision last month to tighten federal permitting for renewables, moving authority into the office of Interior Secretary Doug Burgum. Industry groups warn the move could stall projects that previously would have cleared permitting as a matter of routine. Trump’s latest remarks appear to reinforce those fears.

The president has blamed renewables for rising U.S. power prices. In PJM Interconnection—the nation’s largest grid operator covering 13 states across the Mid-Atlantic, Midwest, and South—prices for new capacity rose 22% year-on-year in an auction last month. PJM faces soaring demand from data centers and other industries while coal plant retirements constrain supply.

However, data from Lawrence Berkeley National Laboratory shows that solar and battery storage make up the majority of projects awaiting grid connection and are considered the fastest path to bridging the supply-demand gap.

Since taking office, Trump has launched a sweeping rollback of renewable policy. His One Big Beautiful Bill Act terminates the investment tax credit (ITC) and production tax credit (PTC) for wind and solar by the end of 2027, eliminating incentives that have driven U.S. renewable growth. His tariffs on steel and copper have further increased project costs.

Adding to industry concerns, the U.S. Department of Agriculture this week announced an end to support for solar development on farmland.