Calculators
Coming soon · Section in progress
Plug-in solar calculators
Estimate what a plug-in solar kit could save you, using your own numbers.
Our calculators will run in your browser and explain every assumption they make. They give estimates, not guarantees: your results depend on your location, roof or balcony, and electricity rate.
What this section will cover
Savings & payback
Yearly savings and payback time from kit price, wattage, sun hours and your electricity rate. Live now: open the calculator.
Kit size
How many panels you would need to cover part of your daily electricity use. Live now: open the calculator.
State checker
Pick your state to see its plug-in solar status, with a link to the official source.
Estimates only. Calculator results are not financial, legal or electrical advice.