A new wave of tariffs could raise costs for energy producers, including oil and gas companies, as well as solar and wind firms.

© Jamie Kelter Davis for The New York Times

Across the country, companies have been installing giant batteries that help them use more wind and solar power. That’s about to get much harder.

© Ross D. Franklin/Associated Press

The components used to assemble wind turbines are made by suppliers around the globe.

© Bob O'Connor for The New York Times

About 80 percent of manufacturing investments spurred by a Biden-era climate law have flowed to Republican districts. Efforts to stop federal payments are already causing pain.

Oil and gas executives welcomed President Trump’s early moves on energy policy, but many said they did not plan to increase production unless prices rose significantly.

His executive orders ultimately seek to make the market for oil and gas as big as possible.

Most major economies are investing in ever-cheaper solar and wind power. The United States risks further ceding a global market to China.

Legal experts said the president was testing the boundaries of executive power with aggressive orders designed to stop the country from transitioning to renewable energy.

In a sweeping order, President Trump halted federal approvals for new wind farms, in a move that could affect projects on land and in the ocean.

The president said he’d declare an energy emergency, increase drilling and end support for electric cars. His pivot to oil and gas follows the hottest year in recorded history.

Periods of low sun and wind, a weather pattern known as a Dunkelflaute, can increase electricity prices and stoke political tensions.