The Trump administration announced it will rename the National Renewable Energy Laboratory, removing all reference to renewable energy.
The Department of Energy said NREL will now be called the National Laboratory of the Rockies.
Energy secretary Chris Wright, a former oil executive who rejects climate science, approved the change.
The DoE said the new name reflects the lab’s “expanding mission” under the administration.
Officials claimed the lab will focus on technologies to boost US manufacturing and meet rising energy demand.
NREL began during the 1970s oil crisis as the Solar Energy Research Institute, later expanding to cover renewable energy innovation.
The lab has since driven major advances in clean energy technologies used across the US and globally.
The renaming follows a year of cancelled clean-energy projects, funding cuts and more than 100 job losses at NREL.
Other agencies, including NOAA, have faced similar staff cuts, contract terminations and reduced responsibilities.
Trump has continued to attack renewable energy while promoting coal, oil and gas, dismissing global climate risks entirely.