Appliance Energy Cost
Calculates annual running cost from power, usage hours, and electricity rate.
Annual usage
1 460,0 kWh
Annual cost
9 490 Kč
Annual cost = (power W × hours/day × days/year / 1000) × price per kWh. Indicative estimate without standing charges.
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Formula
annual cost = (power W × hours/day × days/year / 1000) × price per kWh
Example: 2000 W × 2 h × 365 days × 6.50 CZK/kWh = 9,490 CZK/year
Methodology
Annual cost = power (kW) × hours/day × 365 × kWh price.
Example
Fridge 0.05 kW, 24 h/day, 7 CZK/kWh → about 306 CZK/year.