RASMAG Energy .
Office Hours Company
RASMAG Energy is a Fort Worth, TX long-duration energy storage startup backed by the MITRE Corporation (a U.S. federally funded R&D center), the University of Texas at Austin, the Hamm Institute of American Energy, and Rose Rock Bridge. Our founding team includes former executives from Chevron, Macquarie Bank, The Marine Corps and Barclays Capital. Our patented technology (US‑12,270,368 B2) unlocks affordable, multi-day firm power by leveraging established in-market oil and gas hardware and techniques into grid-scale underground pumped hydro storage. Up to 10X longer duration than lithium batteries, at half the capex and twice the useful life. RASMAG can be retrofitted into depleted oil & gas wells, extending the utility of existing infrastructure beyond extraction phase, if present.