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Calculate Your Power Usage and Peak Power


Use our Power use calculator to calculate how much electricity you use (in Kw Hours) and also the likely maximum power requirement (in Kw).
Please note that these calculations are based on assumed power consumption of various appliances.
Enter the number of each appliance in the appropriate box plus the number of hours use per day, then click the "Calculate" button at the bottom of the page.
Don't forget to consider seasonal variations. Winter time with darker nights will mean more time with lights on and possibly more time watching television, whilst summer may mean powering a pool pump and ceiling fans.
For many relying on solar power, the washing machine has the largest power requirement of any appliance. It may be necessary to restrict it's use to times when other demanding appliances are not likely to be used.