Free tools · no sales visit
Find out what your power actually costs you.
Four tools that read your own utility data and give you a straight answer. Everything runs in your browser. Nothing is sent anywhere unless you ask.
Start here · 90 seconds
How much solar do I need?
Six questions and you get the system size your roof would take and how much of your power it would cover. You decide whether anyone ever calls you.
Get my numberFlorida & California
What do I actually pay per kWh?
FPL advertises 13.7¢. A real Miami-Dade summer bill works out closer to 15.8¢. Send us your bill and we send back your own number.
Read my billSan Diego · SDG&E
What do my evenings cost?
SDG&E charges close to 70¢ between 4 and 9pm and credits about 6¢ for what you export at noon. See your own load curve, hour by hour.
See my curveSan Diego · NEM 3.0
One battery or two?
A full year of your meter data, simulated hour by hour against one, two and three batteries — including the point where we would tell you to stop buying.
Run the simulationEvery figure these tools produce is an estimate worked from published utility tariffs and your own usage. None of them quotes a price or promises a saving. If you want a real design and a real number, each one will offer to put you in front of an engineer — and only if you ask for it.