Solcast

Solar generation forecasts from Solcast.

Forecasts how much your panels will generate over the coming days, based on your location, panel setup, and the weather.

What you get

A forecast for each of your Solcast sites, in 30-minute slots. Forecasts appear on graphs, next to what your panels actually produced.

What you'll need

A Solcast API Key:

1. Sign up at solcast.com(opens in new tab)
2. Add your site: location, panel direction, and size
3. Create a key on your Solcast API page(opens in new tab)

Solcast's free tier covers most homes.