Do you have a rooftop solar system on your house? If so, we offer free ongoing access to our Rooftop Solar Power Forecasts for your home solar system for personal non-commercial use only.
You won't have access to our other Live and Forecast products (such as solar radiation data and utility scale forecasts), and you won't have access to Recent (past 3 months) data, but you will have enhanced access to our Free Tier with additional API calls available for your rooftop site.
Our aim is to enable users like yourselves to build new tools, conduct DIY experiments, or even adjust your home energy usage according to solar availability.
Just register for the Solcast API services and choose the "Home PV System" user category. Next, you'll find our API Toolkit, where you can add a Rooftop Solar site, with the characteristics of your home PV system.
Additional helpful information on this topic (e.g. what is my 'azimuth'?, etc) can be found on the PV performance estimation tool.