Data and tools to build the solar powered future
Solar resource assessment and forecasting data for irradiance and PV power, globally. Created using satellites. Validated with surface measurements. Free registration to our API Toolkit lets you access our data in just a few minutes.
Instant access to data, anywhere:
Historical, live and forecast
Solar irradiance and solar GIS data
Sample our Global Coverage with our Map Demo
Drop a pin anywhere in the world, and set your PV specifications to see real-world sample live and forecast data.
Our data products
Solar Radiation Data
Forecast and real-time solar irradiance and weather data with global coverage and built-in accuracy reporting
Utility Scale
Solar power forecasting via API with sky camera integration. Includes access to our high resolution solar radiation data.
Rooftop PV Forecasts
Solar power forecasting for installations below 1MW in size. Includes free access for your home PV system.
Grid Aggregations
Thousands of PV systems grouped by market regions or grid assets. Live and forecast data updated every 5 to 15 minutes with built-in accuracy tracking.
Historical and TMY
Historical time-series solar irradiance and meteo data, globally, in PVSyst, TMY3 and SAM formats
Utility Scale Wind Forecasts
Wind power forecasting for wind farms, delivered via API. For Enterprise customers only.
Who is Solcast?
Solcast's Dr Nick Engerer pitches our company vision and capability in 5-minutes or less!
Proven, accurate, bankable data
Solcast has over 3,000 users globally, and our data has been extensively validated on all continents except Antarctica. Read more about our historical data satellite and aerosol inputs and algorithms, or learn about how we make our live and forecast data.
- Smarter cloud detection
- Aerosol tracking
- Clear & cloudy sky calibration
Who are our customers?
Solcast serves more than 3,000 customers with data for over 1,000,000 locations around the globe. Our data is trusted for due diligence, project finance, and the operation of electrical grids and networks in Europe, Asia, North America and more.
Selected customer profiles:
EPRI
| Headquarters: | Palo Alto, California |
| Core business: | Energy research and development |
| Employees: | >1,000 |
Sign-up is free
Try our API Toolkit now & receive $400 of free historical data credit plus 1000 free API calls.
- Access historical time-series & TMY data
- Add your own solar forecasting site
- Live & forecast solar irradiance data via API
- Purchase one-off or subscribe via credit card
Let's build the solar-powered future!