This is a list of destroyer escorts of the United States Navy, listed in a table sortable by both name and hull-number. It includes the hull classification symbols DE (both Destroyer Escort and Ocean Escort), DEG, and DER.
Kilowatt hour. The kilowatt hour (symbol kWh, kWâh or kW h) is a derived unit of energy equal to 3.6 megajoules. If the energy is being transmitted or used at a constant rate (power) over a period of time, the total energy in kilowatt hours is the power in kilowatts multiplied by the time in hours.
Electricity is billed by the kilowatt hour. Solar panel energy output is also measured in kWh per square meter of panel surface. The average electricity consumption for a household in the United States is 8900 kWh per year.