Solar Savings Calculator

Estimate your savings, payback time and lifetime return from solar panels.

UK averages 2.5–3.5 peak sun hours; southern US 5–6.

You'd save each year

Enter your system size and electricity price.

How it works

Annual generation = system size × peak sun hours × 365. Multiply by your electricity price for the savings if you use it all yourself.

Real savings depend on how much you use during the day vs export to the grid. Battery storage can dramatically improve self-consumption.

Frequently asked