How it works
The tariff is entered by you in your own currency. Duty cycle estimates how much of the scheduled time the device draws the stated running power. This simple model assumes zero draw during the rest of the scheduled time; add standby or other loads separately. It excludes fixed charges, taxes, tiered tariffs and time-of-use rates. Nameplate maximum power may differ from actual measured use.
The formulaDaily kWh = watts × device count / 1,000 × hours × duty cycle / 100
Cost = daily kWh × days × price per kWh
Cost = daily kWh × days × price per kWh