Solar system size calculator

Answer a few questions to estimate your PV system cost, payback period and monthly utility savings.

What system type do you need?

These PV systems differ in efficiency, price and maintenance


Sell excess electricity to the utility grid

Select inverter
Which is better?


Become independent and store energy in batteries

Select inverter
Which is better?


Sell excess electricity to the grid and stay independent

What battery type do you need?

The battery chemestry influences its storage capacity, efficiency and price

I don’t need batteries


Compact storage solution with 90-95% depth of discharge



Solid energy storage at a low price

Type in your ZIP and electricity bill info

Your location will determine the amount of solar energy you can generate. Your average electricity consumption is important to understand what kind of system will work for you best.

VA, Ashburn

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Calculate your solar future

Take a peek at your ideal PV system. This solar cost calculator won’t let you forget anything important. Discover how much you can save on utility bills – if you have to pay at all. The tool will also tell you how fast your PV system will pay for itself and its overall cost.

Forget about searching for products and compatibility issues with our solar calculator: choose an on-, off-grid or hybrid configuration, the type of batteries (if needed) and a desirable size from small to large. Our solar panel cost calculator will suggest the best equipment that you can buy immediately. The whole process takes less than 5 minutes.