Patent ID: 11885244
Assignee: MALTA INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 5:
6. A system comprising:
a pumped-heat energy storage (“PHES”) system, wherein the PHES system is operable in a charge mode to convert electricity into stored thermal energy in a hot thermal storage (“HTS”) medium by transferring heat from a working fluid to a warm HTS medium, resulting in the hot HTS medium, and wherein the PHES system is further operable in a generation mode to convert at least a portion of the stored thermal energy into electricity; and
an electric heater in thermal contact with the hot HTS medium, wherein the electric heater is operable to heat the hot HTS medium during operation of the PHES system in the charge, idle, or generation mode.