SPECIFICALLY, THIS FOA WILL IMPLEMENT TWO APPROACHES TO ENERGY STORAGE IN CONCENTRATED SOLAR-THERMAL (CST) SYSTEMS: THERMOCHEMICAL STORAGE VIA SOLAR FUEL PRODUCTION AND LOCAL THERMAL ENERGY STORAGE (TES) FOR DISPATCHABLE ENERGY. THE TWO TECHNOLOGIES WILL SUPPORT THE GOVERNMENT-WIDE APPROACH TO THE CLIMATE CRISIS BY DRIVING THE INNOVATION THAT CAN LEAD TO THE DEPLOYMENT OF CLEAN ENERGY TECHNOLOGIES, WHICH ARE CRITICAL FOR CLIMATE PROTECTION. MODIFICATION 000001: MODIFIED THE FULL APPLICATION DEADLINE AND EXPECTED DATE FOR SELECTION NOTIFICATIONS; SEE THE COVER PAGE OF THE FOA.