3E Research Incorporated
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Energy - Earth - Environment
Household energy usage calculator
This calculator estimates energy usage in a household. The power calculated is the average: the actual use has large spikes when particular appliances are in operation (e.g. washing machine), as well as daily and seasonal variations (e.g. heating / cooling). Power supplies generally need extra short-term capacity to cope with these variations, from storage (e.g. batteries) or a grid connection. This calculator gives an approximate estimate: a much more detailed assessment is needed to make an accurate estimate.
Required data
Enter constants or simple expressions in each of the input boxes, then
press the "Calculate" button.
This calculator uses metric units - conversions can be performed by entering the
conversion factors in the boxes, e.g. "(80-32)*5/9" to convert 80oF
to oC.
Calculated average power requirement