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.
Drab (color) Drab is a dull light-brown color, the color of undyed wool cloth of the same name. Drab is a dull light-brown color. It originally took its name from a fabric of the same color, made of undyed homespun wool. Drabs were clothes, especially trousers, made of this fabric. The word was first used in English in the mid-16th century. It probably originated from the old French word drap, which meant cloth.