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.
Key difference: In financial accounting or bookkeeping, Dr (Debit) is the left side of a ledger account or when something has been deducted from the account, whereas Cr (Credit) is the right side of a ledger account, when something has been added.