ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,366, issued on Feb. 17, was assigned to Rondo Energy Inc. (Alameda, Calif.).

"Energy storage system and alumina calcination applications" was invented by John Setel O'Donnell (Oakland, Calif.), Peter Emery Von Behrens (Oakland, Calif.), Robert Ratz (San Jose, Calif.), Yusef Desjardins Ferhani (Menlo Park, Calif.) and Jeremy Keller (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000deg C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat delivery via flowing gas establ...