A kilowatt-hour (kWh) is a unit measuring electrical energy consumption, representing the amount of electricity used by running a 1,000-watt appliance for one hour. Electricity bills show usage in kWh, and rates are charged per kWh consumed. Understanding kWh helps households and businesses monitor energy use and control costs. Municipal facilities track kWh consumption to manage operating expenses and meet environmental targets. Energy efficiency programs often measure savings in kWh reduced. As municipalities work toward climate goals, tracking kWh usage in buildings, streetlights, and operations helps identify opportunities for conservation and the transition to renewable energy sources.