Guides: running costs explained
Short, sourced explanations. Every number is either from an official dataset or calculated from one, and we show how.
Data
Electricity Prices by State (July 2026 EIA Data)Average residential electricity price in every U.S. state for July 2026, with the change from a year earlier. Official EIA data, ranked, updated monthly.Heating
How Much Does a Space Heater Cost to Run? (Every State)A 1,500-watt space heater costs about $0.27 an hour at the U.S. average electricity price. See the per-hour, daily and monthly cost in every state.Appliances
What Does a Dehumidifier Cost to Run? Data From 552 ModelsWe analyzed every ENERGY STAR certified dehumidifier: median yearly energy use by size, what it costs at U.S. prices, and how to pick an efficient one.Basics
How to Calculate What an Appliance Costs to RunThe simple formula for appliance electricity cost (watts × hours ÷ 1,000 × rate), worked examples, and how to find your real price per kWh on your bill.
Electricity Prices by State (July 2026 EIA Data)Average residential electricity price in every U.S. state for July 2026, with the change from a year earlier. Official EIA data, ranked, updated monthly.Heating
How Much Does a Space Heater Cost to Run? (Every State)A 1,500-watt space heater costs about $0.27 an hour at the U.S. average electricity price. See the per-hour, daily and monthly cost in every state.Appliances
What Does a Dehumidifier Cost to Run? Data From 552 ModelsWe analyzed every ENERGY STAR certified dehumidifier: median yearly energy use by size, what it costs at U.S. prices, and how to pick an efficient one.Basics
How to Calculate What an Appliance Costs to RunThe simple formula for appliance electricity cost (watts × hours ÷ 1,000 × rate), worked examples, and how to find your real price per kWh on your bill.