Appliance guides
Home systems electricity costs
Estimate electricity used by water heaters, pumps, pools, and hot tubs. Understand cycling, seasonal schedules, and the limits of a wattage-only estimate.
Choose an appliance 5 guides
See an example cost, then adjust it to your home.
Make the comparison yours
Daily cost = watts ÷ 1,000 × active hours × your price per kWh. Compare appliances on the same schedule and rate; compare lighting by brightness and cooling equipment by the space it serves.