Global solar forecasting technology

Global solar forecasting technology

Solcast cloud nowcasting technology in action over Southeast Asia

Tracking individual clouds on a rapid update cycle, Solcast combines imagery from five weather satellites into one easy to use API, making solar forecasting fast, easy and free to try.

Solcast delivers operational solar forecasting data around the world

Our forecasting data are utilised by more than 24,000+ unique users. We also feature a global network of high-profile partnerships to deliver 24/7 support and bespoke contracts

Global Enterprise Partnerships

North America, China, Vietnam




South America




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Solcast API Toolkit

Try our solar forecasting data within minutes

Try our solar irradiance and PV forecasting data though the Solcast API Toolkit. No credit card required. Instant access.

Solar forecasting technology… in the cloud

We built a new approach to solar forecasting 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, including:

  • Solar irradiance data (GHI, DNI, Diffuse)
  • PV power modelling (Rooftop or Utility Scale)
  • Global coverage (all six major continents)
  • Rapid update (new forecasting data every 5-15 minutes)
  • Proprietary cloud & aerosol detection (tracking smoke, dust, haze)
  • Probabilistic forecasting data (P50, P10, P90)
  • High-resolution data (1-2km)
  • Forecasts from 5 minutes through 7 days ahead
  • Choose between 5/10/15/30 minute resolution
  • Delivered via REST API (download CSV, JSON or XML)
Solcast API Toolkit

Access state of the art solar forecasting technology in our API Toolkit

Learn about our technology

Live & forecast data APIs for data access Pricing information Methodology

Or, access solar forecasting data at your areas of interest straight away

Create your free API Toolkit account, and we will provide you with 10 free requests per day. No commitment required, just instant access to the latest high quality, high resolution predictions of solar irradiance and PV power data, wherever you need it.