Based on our proprietary satellite cloud and aerosol tracking. Solar irradiance and weather data extending back up to 15 years, with high accuracy and near zero bias.
Plan and finance new solar projects
Estimate PV system yields with modelling tools including PVsyst, PlantPredict, SAM, PV*SOL, Homer
Conduct research (we offer historical data credits to public researchers)
All continents except Antarctica.
Period Mean: 5, 10, 15, 20,30 or 60 minutes (period mean, labelled with period-end time)
Native Satellite: 5 minute period-mean values, labelled with period-center time
Every 10 or 15 minutes
15 years ago to 2-7 days ago
Data can be ordered and downloaded via the Solcast API Toolkit.
Automated API requests are not available at this time.
Get free historical data credits when you sign up, so you can try our data for yourself. You can download data automatically within around 1 to 5 minutes of submitting your request.
Accurate forecast and current solar irradiance and weather data with global coverage
Solar power forecasting for solar farms or solar parks, delivered via API.
Solar power forecasting for rooftops - just one, or thousands.
Thousands of PV systems grouped by market regions or grid assets. Forecasts and estimated actuals updated every 10 to 15 minutes.
Wind power forecasting for wind farms, delivered via API. For Enterprise customers only