SOUTHWEST RESEARCH INSTITUTE- NEW AWARD CONTROL NUMBER:1858-2227 18-83926 GRID-SCALE ELECTRICITY STORAGE AT LOWEST POSSIBLE COST: ENABLED BY PUMPED HEAT ELECTRICITY STORAGE THE TEAM OF SOUTHWEST RESEARCH INSTITUTE (SWRI), MALTA INC., AND BAYLOR UNIVERSITY PROPOSES TO ADVANCE PUMPED HEAT ELECTRICITY STORAGE (PHES) TECHNOLOGY WITH A 100 KWE LABORATORY DEMONSTRATION. THIS SYSTEM DEMONSTRATION WILL BE ACCOMPANIED BY A TECHNOLOGY DEVELOPMENT EFFORT ADVANCING REVERSIBLE TURBOMACHINERY AND MOTOR-GENERATOR TECHNOLOGY, BOTH KEY PHES COMPONENTS ENABLING SYSTEM SIMPLIFICATION AND HIGH ROUND TRIP CONVERSION EFFICIENCIES AT LOW PLANT COST.