Free guides that answer common home energy questions — no account needed. Each guide explains how costs are calculated and what factors affect your bill.
How Much Does It Cost to Run a Pool Pump?
Illustrative example: a 1,000-watt pump running 6 hours a day for 180 days uses 1,080 kWh per year. At $0.20/k…
How Much Electricity Does Central AC Use?
Illustrative example: an AC drawing 2,000 watts for 6 equivalent hours a day across 120 cooling days uses 1,44…
How Much Does It Cost to Charge an EV at Home?
Illustrative example: 12,000 miles/year at 30 kWh per 100 miles, with 50% charged at home uses 1,800 kWh per y…
How Much Does an Electric Water Heater Cost to Run?
Illustrative example: an electric water heater with an assumed annual consumption of 4,000 kWh uses 4,000 kWh …
How Much Does It Cost to Run a Space Heater?
Illustrative example: a 1,500-watt heater drawing full power for 4 hours a day on 120 days uses 720 kWh per ye…
How Much Electricity Does a Heat Pump Use?
Illustrative example: a heat-pump system with an assumed total of 5,000 kWh/year uses 5,000 kWh per year. At $…
How Much Electricity Does a Dryer Use?
Illustrative example: a dryer using an assumed 3 kWh per cycle for 200 cycles/year uses 600 kWh per year. At $…
How Much Electricity Does a Refrigerator Use?
Illustrative example: a refrigerator with an assumed label value of 500 kWh/year uses 500 kWh per year. At $0.…
How Much Electricity Does a Hot Tub Use?
Illustrative example: a hot tub with an assumed annual electricity total of 3,000 kWh uses 3,000 kWh per year.…
What Uses the Most Electricity in Your Home?
The largest loads depend on your equipment, fuels and habits. Compare electric heating and cooling, hot water,…