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 30+ enterprise clients and more than 5,000 unique users. We also feature a global network of high-profile partnerships to deliver 24/7 support and bespoke contracts

Selected customer profiles:

First Solar

Headquarters:Tempe, Arizona, USA
Core business:Global solar project development and operations

Duke Energy

Headquarters:Charlotte, North Carolina
Core business:Fortune 150 Company; Electrical utility with >7.7M customers


Headquarters:Paris, France
Core business:Global solar project development and operation

Meteocontrol GmbH

Headquarters:Augsburg, Germany
Core business:Global PV monitoring and analytics

Vietnam Electricity (EVN)

Headquarters:Hanoi, Vietnam
Core business:National system operator in Vietnam

Australian Energy Market Operator (AEMO)

Headquarters:Melbourne, Australia
Core business:National system operator in Australia

Global Enterprise Partnerships

North America, China, Vietnam




South America




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Solcast API Toolkit

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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

Create your free API Toolkit account, and we will provide you with 1000 free API calls, plus an additional 10 free calls per day for each forecasting site you create. 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.