Where's your roof?

Address gives us your latitude, climate zone, utility, and tariff schedule. Nothing is shared with installers — there's no installer to share it with.

Street address

US or UK

Utility

fill in if not auto-detected

Tariff schedule

Hold horizon

how long you'll likely own

ZIP-defaulted from US Census mobility data; you can override.

Detected for this address

Type an address to detect utility, tariff, and climate inputs.

Production model: pvlib-python · NSRDB hourly TMY. Cached per 1 km bucket; refreshed nightly.