KNOXVILLE, Tenn. (Story courtesy of WVLT) – Oak Ridge National Laboratory has announced it is working to transform abandoned coal mines to ensure access to safe and reliable energy.
ORNL said the mines will be transformed into transform abandoned coal mines (PSH), which could help strengthen the country’s electric grid.
PSH requires geographic features, such as hills and mountains, to create a natural height differential between two reservoirs, according to ORNL.
“Underground PSH is an exciting opportunity, but we have to overcome challenges like chemical erosion and structural stability,” ORNL Senior Researcher Thien Nguyen said. “Our modeling tools will help industry partners evaluate these risks and make informed decisions about facility design, construction and operations at specific locations of interest.”







