Air conditioner, dehumidifier and fan electricity costs
Compare daily, monthly and cooling-season electricity costs from power and usage hours.
Compare daily, monthly and cooling-season electricity costs from power and usage hours.
Cooling performance is not equivalent. Fans mainly improve perceived cooling rather than greatly lowering room temperature. Some dehumidifiers warm rooms. AC consumption varies with settings, room temperature, insulation and outdoor temperature. Use specifications or measurements.
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Method
Daily energy = W ÷ 1000 × Hours per day
Daily cost = Daily energy × Electricity rate
Monthly cost = Daily cost × Usage days per month; Cooling-season cost = Daily cost × Cooling-season usage days
Notes
Cooling performance is not equivalent. Fans mainly improve perceived cooling rather than greatly lowering room temperature. Some dehumidifiers warm rooms. AC consumption varies with settings, room temperature, insulation and outdoor temperature. Use specifications or measurements.