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Solar data services… in the cloud
We built a new approach to solar forecasting and modeling technology from the ground up, using the latest in weather satellite imagery, machine learning, computer vision and big databases. We crunch more than 600 million new forecasts every hour in a cloud-based environment on AWS and provide real-time access to our data via API. Use the API Toolkit to access nearly 20 years of historical data, including TMY files.
Historical and TMY Data
- Low uncertainty, zero bias, bankable dataset
- Independent validation & global coverage
- High resolution data: Up to 5 minute / 90 metre resolution
- PV modelling software integration (PVSyst, SAM, TMY3, CSV)
- Solar irradiance (GHI, DNI, DHI)
- Weather (Temp, Wind, Humidity, Snow, etc)
- Includes aerosol impacts (tracking of smoke, dust, haze)
Live and Forecast Data
- Solar irradiance data (GHI, DNI, Diffuse)
- Weather (Temp, Wind, Humidity, Snow, etc)
- PV power modelling (Rooftop or Utility Scale)
- Fully-global coverage
- Rapid update (new forecasting data every 5-15 minutes)
- Proprietary cloud & aerosol detection (tracking smoke, dust, haze)
- Probabilistic forecasting outputs
- Real-time data through to 14 days ahead at 5, 10, 15, 30 & 60 minute resolution
- Delivered via REST API (download CSV or JSON)
Learn more about our data
Latest Posts
Accuracy Analysis: ECMWF’s AI model for solar forecasting performs well
ECMWF has released its first operational AI weather model with solar forecasting capabilities—AIFS V1. The Solcast Data Science team benchmarked its performance against IFS and GFS, showing promising accuracy but a conservative irradiance bias.
Siberian high and La Niña late onset drive sunny start to 2025 in East Asia
Early 2025 saw sunny skies across East Asia, with solar gains up to 30%, while maritime Southeast Asia faced deficits from heavy cloud cover.
Weak La Niña patterns shape North American solar in February
Across North America, February's solar conditions were shaped by weak La Niña patterns and winter storms. Mexico, the U.S. Southwest, New England, and parts of Canada saw above-average irradiance while the Pacific North West, Ontario and Quebec faced cloudier skies.
