Energy & Utilities Calculators

Find what any appliance costs to run per hour, day, month and year at your own electricity rate.

Compare the total cost of an electric and a petrol car over your ownership period, not just the sticker price.

Compare annual heating cost and payback for a heat pump against gas, oil, propane or electric resistance.

Add up your whole home's electricity use appliance by appliance and see where the bill actually goes.

Estimate system size, production, savings and the year a solar installation pays for itself.