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.
Drug Recognition Experts. A Drug Recognition Expert (DRE) is a law enforcement officer who administers tests on suspected impaired drivers to attempt to determine whether the individual is impaired and if so, to categorize the type of impairing substance. Law enforcement officers become DREs by completing a three phase course. DREs are trained to follow a 12-step protocol. DRE testimony is used to prosecute cases of suspected drugged driving because of the limitations of toxicology testing.