Steadymet enhances the accuracy of renewable energy forecasts by using a multi-model approach based on 20+ meteorological models.
Steadymet provides day-ahead and intraday energy forecasts for solar and wind farms, with a 15-day horizon.
Our proprietary technology combines over 20 numerical weather prediction (NWP) models to eliminates individual biases, ensuring unparalleled accuracy across all time horizons.
We also provide a full suite of forecast quantiles that measure uncertainty across all time horizons, enabling you to tailor your strategy to your risk tolerance and maximize the value of your renewable output in response to market conditions.
15 days
Up to 1 hour
Up to 1 minute
Power, GHI, DNI, DHI, GTI, temperature, wind speed & direction, humidity and more...
Get accurate solar forecasts anywhere in the world : forecasts by site, portfolio, city, region or country.
PV, CSP, onshore, offshore
API, SFTP, etc.
Measure uncertainty through 11 quantiles (P00, P10, P20, …, P80, P90, P100)
Highly accurate day-ahead solar and wind power forecasts
We combine forecasts from 20+ established weather models with your real-time production data. Our AI eliminates biases and constantly optimizes accuracy, providing you with the most reliable forecasts on the market.
An in-house regional model at very high spatio-temporel resolution (up to 1km), delivering accurate and reliable forecasts in areas where local effects are critical and where public regional weather models are unavailable.
Customize your experience: specific weather parameters, update frequency tailored to your needs (up to 5 minutes), optimal time granularity, and data formats compatible with your systems (API, FTP, web interface).
Wherever your assets are located, our technology integrates a comprehensive set of global and regional models from the most reputable meteorological services (ECMWF, GFS, ICON, UK Met Office, etc.).
As you know, Steadysun has developed an innovative aggregation technology that simultaneously leverages over 20 benchmark meteorological models worldwide (see map). And our system doesn’t just collect this data; it analyzes, compares, and merges it into a unified forecast of superior reliability.
This multi-model approach enables us to:
As a result, we provide highly reliable power generation forecasts, i.e. intraday and daily wind forecasts, as well as intraday and daily solar forecasts.
Uncertainty is an integral part of weather forecasting. Go beyond traditional forecasting limitations with our probabilistic methodology.
Steadysun transforms meteorological uncertainties into a strategic asset by deploying 11 distinct quantiles that accurately chart all possible scenarios. This modeling of NWP distributions reveals the exact probability of each solar variation, enabling optimized risk management and highly profitable energy decisions.
Visualize your potential production and anticipate fluctuations with unmatched confidence, even in the most volatile conditions.
For critical short-term forecasts (D and D+1), SteadyMet can be configured with the very high-resolution Weather Research and Forecasting (WRF) model (1km resolution), ensuring highly accurate weather forecasts and significantly improve our forecasts.
Our team of meteorologists and data scientists can implement and optimize the WRF model anywhere on the globe, ensuring optimal performance regardless of your assets’ location.
Ideal for accurately capturing local microclimates, this model excels in mountainous, coastal, island, or high-aerosol concentration regions.
Our technology goes beyond the aggregation of weather models – it enriches them by processing terabytes of meteorological data daily from over 20 sources, integrating real-time Numerical Weather Prediction (NWP) forecasts, satellite observations, and ground measurements.
This robust data foundation, powered by machine learning and AI algorithms, allows SteadyMet to precisely adapt to your installations’ unique characteristics. It also enables real-time model optimization, dynamically adjusting each weather model’s contribution based on its regional and historical performance for unparalleled accuracy.
In this process, the expertise of our engineers and meteorologists is paramount: they supervise, interpret, and refine these automated analyses, ensuring you receive the most reliable forecasts.
Discover the best of SteadyWeb, our autonomous forecasting plateform. Optimize two plants free with Expert+ features – no commitment !
| Type | Short name | Description | Unit |
|---|---|---|---|
| Production | pac | Solar AC power at inverter output | W |
| Irradiance | ghi, bni, dhi, bhi | Global, beam, diffuse, horizontal irradiance with the cloud cover taken into account. | W.m⁻² |
| PAR | par | Photosynthetic active radiation. | W.m⁻² |
| Wind parameters | 10m_gust | Maximum wind gust speed 10 meters above ground. | m.s⁻¹ |
| 10m_wind_speed | Average wind speed 10 meters above ground. | m.s⁻¹ | |
| 10m_wind_direction | Wind direction at 10m (0° = North). | ° | |
| hhws | Wind speed at turbine hub height (25–100m). | m.s⁻¹ | |
| Temperature | t2m, td, t_cell | Ambient temp, dewpoint, and cell temp. | °C |
| Humidity | rh2m, q, tcwv | Relative/specific humidity and water vapor content. | %, g.kg⁻¹, kg.m⁻² |
| Clouds | hcc, icc, mcc, tcc | Cloud cover (high, low, medium, total) | [0-1] |
| Precipitation | mtpr | Precipitation rate. | mm.h⁻¹ |
| Pressure & Density | mlsp, msp | Mean sea level and surface pressure. | hPa |
Put our forecasts to the test — easily integrate our solar data into your tools and see the impact firsthand. With our renewable forecast API, nothing could be simpler or faster.
Make your solar and wind power plants more profitable. Limit penalties, maximize revenues.
Foster solar energy use. Reduce investment and operating costs.
Maximize the use of renewable energies while ensuring grid balancing.
Optimize transactions on power markets. Reduce unbalancing costs. Manage risks.
Get vast, timely environmental data to validate models, track phenomena, and accelerate discoveries.
Know the future profitability of your projects, taking into account weather variability.
Access live solar irradiance data, and much more, to optimize solar production and energy efficiency.
Accurate solar power forecasts using weather-based models. Anticipate variability and optimize energy performance with confidence.
Reliable wind power forecasts powered by advanced weather models. Plan ahead, reduce uncertainty, and optimize wind energy output.
Get quarterly insights into the energy sector and our latest products.
EN 
FR