Size your solar system in seconds.
A free estimate from your bill or usage — then upgrade to the full design platform.
Free system estimate
Enter one number. We return a practical size, panel count, approximate system price, and savings range using regional solar defaults.
Your energy profile
Demo estimate · not a site survey
Defaults to USD. Change currency to convert using live exchange rates….
Your estimate appears here
Add your bill or consumption, then calculate. We'll show system size, price, and a clear path into the full platform.
From estimate to engineering.
The free tool opens the conversation. The platform finishes the project.
Precision roof layout
Place arrays on real roof geometry with setbacks, levels, and auto distribution.
Full-year shadow analysis
Hourly sun paths and production losses — the depth professionals expect.
Inverter stringing
Match modules to MPPTs with voltage checks and clear string maps.
Drawings & BOM export
Engineering packs ready for installers, clients, and procurement.
Design the system. Ship the drawings.
Move from a free size check to professional layout, simulation, and exports — in one platform built for solar designers.