Researchers at DLR, and NREL, and the Bill Gates-funded start-up Malta have been investigating converting coal plants into grid-scale thermal energy storage for curtailed intermittent renewable energy, as low-cost heat “batteries.” (Thermal energy storage was originally developed as storage for Concentrated Solar Power (CSP), but it can alternatively be deployed “standalone” to store energy for … Continue reading Aalborg CSP to Retrofit Coal Plants into Thermal Energy Storage