Solar and wind energy forecasting API

Optimize and secure renewable production with our powerful API. Get accurate weather and power forecasts. Live irradiance data.

An API designed for performance and scalability

Top-rated accuracy

By combining +20 weather models and 5 satellites, our unique multi-model technologies delivers more accurate solar and wind energy forecasts.

Worldwide data

Global coverage, all technologies & aggregation levels. Time horizon from minutes to weeks with updates up to 5 minutes.

Easy setup

Online subscription in full autonomy. Easy access to forecasts via API, SFTP or CSV files. Compatible with any platform and fully customizable.

Competitive pricing

One of the most affordable solutions on the market. With usage-based pricing, you pay only for the forecast points you need.

What we do

Empowering professionals with high-precision forecasts to optimize renewable energy variability, boost revenue, and improve efficiency

Accurately anticipate your photovoltaic production, optimize grid injection, reduce risk and comply.

Get highly accurate solar power generation forecasts with our advanced SteadyMet technology that combines over 20 leading weather models to deliver the market’s most reliable solar predictions.

Whether you manage photovoltaic farms, trade energy, or operate grids, our forecasts enable you to optimize production and reduce risks up to 15 days ahead.

Web app UI for solar and wind forecasts
Award badge for solar forecasting benchmarks - top rated 2023
Solar panel cell pattern

Anticipate your wind power production, reduce imbalance costs, and enhance operational efficiency with precision.

Gain up to 16 days of forward visibility with ultra-accurate wind forecasts. Our SteadyMet technology integrates over 20 leading weather models with detailed confidence intervals to support smarter planning and decision-making.

Ideal for wind farm management, energy trading, or ensuring grid stability with precise production predictions.

Web app UI for solar and wind forecasts
Wind turbine at eye level

Don't let weather fluctuations catch you off guard anymore. Track your real-time production and react instantly.

Combining satellite observations, ground-based data, and advanced modeling, our live solar energy forecasts delivers remarkably accuracy for the coming minutes and hours.

Ideal for:

  • Hybrid power plant management
  • Island grid balancing
  • Optimizing intraday trading operations
  • Maximizing self-consumption rates
Web app UI for solar and wind forecasts
Satellite orbiting above Earth

Rebuild past weather and production to analyze performance, size your systems, and evaluate profitability.

Our hindcast data simulates what our forecasting model would have predicted at your specific project sites under past weather conditions.

Use these datasets to:

  • Evaluate site potential and financial viability
  • Train and fine-tune your AI models
  • Optimize and stress-test your energy management strategies
  • Assess model performance
Web app UI for solar and wind forecasts
Aerial view of a storm system

Loved by the companies you trust

They optimize their operations with Steadysun

Real use cases, real impact

Our energy forecasts are designed to meet all your business needs

Sign up for your 30-day free trial now!​​

Discover the best of SteadyWeb, our autonomous forecasting plateform. Optimize two plants free with Expert+ features – no commitment !

Aerial image of solar PV field
About steadysun

Why choose Steadysun solar and wind forecasting API?

Our expertise

  • Cloud and weather observation
  • Solar and wind energy forecasting
  • Energy consumption forecasting
  • Services and consulting in solar / wind energy and electrical systems.
🏆 Top rated accuracy in 2023
🌍 Trusted in +10k sites in 25 countries
👍 Service availability rate commitment > 99.7%

Our API has been specifically developed to deliver our ultra-accurate forecasts seamlessly across any platform, ensuring fast, reliable access to critical data wherever you need it.

Our innovative solar and wind technologies

  • Our Big Data technology aggregates geospatial data from +20 numerical weather models, satellite observations, and ground measurements.
  • Combines a physics-AI hybrid approach with machine learning at the core of its algorithms to improve forecast accuracy.
  • Evaluate the probability of an event and optimize your decisions in the face of weather risks using confidence intervals.
  • Using the regional WRF (Weather Research and Forecasting) model, capable of achieving a resolution of up to 1 km.

Our team of experts

Created in 2013 and originating from CEA and INES, Steadysun leverages advanced expertise in renewable energy, meteorology, artificial intelligence, and data science. Our collaborations with French laboratories allow us to remain at the forefront of innovation.

Our customer support

Our team supports you throughout all your projects, from integrating our solutions to daily use. Need assistance or advice? We’re happy to help you maximize the value of our forecasts and optimize your operations. 🚀

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