Battery storage power stations use rechargeable batteries for load-leveling (storing electric energy at times of low demand for use during peak periods) and for renewable energy uses (such as storing power generated from photovoltaic arrays during the day to be used at night).
Definition of dray. : a vehicle used to haul goods; especially : a strong cart or wagon without sides.
Cray Inc. designs, develops, manufactures, markets and services the high-performance computing (HPC). The Company markets supercomputers and provides storage and analytics solutions. It also provides software, system maintenance and support services, and engineering services related to supercomputer systems.