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 high performance computing systems commonly known as supercomputers. The Company's products provides sustained performance on critical applications, scalability to handle larger problems and the reliability to run jobs to completion.