From Abandoned Mines to American Power

Grav-Batt Energy LLC

Henrico, Virginia

We turn abandoned Virginia coal-mine shafts into America’s toughest, longest-lasting energy storage systems — using nothing but gravity.

Our weights are built from local construction demolition waste and stabilized coal ash — turning yesterday’s liabilities into tomorrow’s carbon-free power at negative material cost.

First pilot: 1 MW at the historic Merrimac Mine near Virginia Tech (2027 target).  
12–50+ hours of firm, dispatchable electricity.  
80–90% round-trip efficiency.  
LCOS under $0.03/kWh.  
No rare earths. No degradation. No batteries.

Founded and led by retired U.S. Air Force veteran and physics student Gabriel Baker — putting military precision and American ingenuity to work for clean energy and Virginia coalfield communities.

Currently pursuing SDVOSB certification, AMLER/DOE funding, and collaboration with Virginia Tech and the Sandia LDES Consortium.

Ready to talk pilots, PPAs, or partnerships → contact us below.