The company, long focused on cars and trucks, plans to begin manufacturing large batteries used by utilities, data centers, other businesses and homeowners.
Ford Motor shut down a battery factory and laid off 1,600 workers after President Trump and Republicans gutted government support for electric vehicles.
Federal agencies are delaying approvals for renewable energy projects on both federal land and private property at a time when electricity demand is going up.
Many of the cancellations had been known for months, but the announcement underscored the drastic change in the energy landscape under President Trump.
The Energy Department canceled a partial loan guarantee to Sunnova Energy, a residential solar panel installer that was experimenting with a novel way to link home solar and battery systems.
The cuts were part of a larger effort by the Energy Department to cancel spending for projects like hydrogen fuel hubs, electrical grid upgrades and efforts to reduce methane leaks.
The presidentβs embrace of fossil fuels and withdrawal from the global fight against climate change will make it hard to keep warming at safe levels, scientists said.
Americaβs greenhouse gas emissions from the burning of coal, oil and gas, which had finally started to decline, rose 1.9 percent after Mr. Trump returned to office.