SteadySat

Solar forecasts for the coming hours

ABOUT

Forecast based on satellite imagery for intraday solar forecasting needs

SteadySat provides advanced solar irradiance and production forecasts up to 6 hours ahead. This product combines real-time satellite imagery with in-situ observations processing, weather forecast, physical models and artificial intelligence.

Cloud properties and evolution are monitored and predicted in real-time, improving the accuracy of solar forecasts for the next few hours and anticipating the risks of variability.

Intraday power forecast for a 12MWp PV plant (Germany)

Intraday power forecast for a 17MWp PV plant (Australia)

Satellite-based GHI forecast above Western Europe

Download the SteadySat product sheet

6 hours
Max time horizon


Up to 144 times a day
Update frequency


1 min
Forecast time-step


Power, GHI, DNI, DHI, GTI, Temperature, Wind
Available parameters


Site, Portfolio, City, Region or Country
Coverage


PV, Trackers, Bifacial, CSP
Technology


API, SFTP, etc.
Data delivery


P10, P20,…, P80, P90
Confidence levels

KEY BENEFITS

WORLDWIDE COVERAGE

Real-time process of images coming from five geostationary meteorological satellites.

ACCURACY IMPROVEMENT

Frequently updated information of current and upcoming weather situations. Local weather effects are more accurately predicted at specific locations with nowcasting. SteadySat perfectly complements SteadyMet with precise intraday forecasts thanks to high-resolution remote sensing observations.

TAILORED OUTPUTS

In terms of parameters, update frequency, granularity and delivery settings.

CUSTOMERS NEEDS

This product is tailored to meet your solar business needs. It is particularly suitable for the optimization of storage dispatch and intraday trading markets.

Renewable energy trading & Portfolio management


Solar and wind portfolio production forecasts to sell electricity at the best price on energy market (SPOT), and to minimize the cost of imbalance penalties.

GRID MANAGEMENT


Solar and wind forecasts to reduce spinning reserve, and avoid grid instability.

SMART GRIDS & SMART CITIES


Solar, Wind and Load forecast to define the bestcontrol strategy and maximize self-consumption.

PLANT OPERATIONS


Products and services for solar plant operators allowing you to maximize the profitability of your plants.

METHODOLOGY

SteadySat compiles live images from 5 geostationary satellites (step 1) and processes them (estimation of motion vector and application on the last available image) to estimate the clouds position for the next few hours. This cloud position is used to forecast the irradiance (step 2). The satellite imagery also allows us to estimate the global horizontal irradiance at acquisition time (10 to 15 minutes).

Forecasts are then optimized (step 3), by using production/irradiance observations, to take into account local phenomena, and by leveraging artificial intelligence technologies.

Ready-to-use forecasts, in a customized format, are then disseminated (step 4) through our proprietary web interface, csv files delivered via (S)FTP platforms or API. 

DATA ACQUISITION

> From 5 geostationary satellites.
> Different channels providing information on the atmosphere, clouds and aerosols.
> Every 5 to 15 minutes.

MODELING

> Cloud detection, classification and motion prediction.
> Accurate estimation of clear sky conditions using real-time aerosols prediction.
> Calculation direct and diffuse irradiance components in cloudy conditions.
> PV modeling based on physical models and plant features.
> High-resolution topographical corrections (down to 90m).
> Probabilistic forecasting using physical and statistical approaches.

OPTIMIZATION

>  Based on historical and/or real-time on-site measurements.
> Continuous accuracy improvements using state-of-the-art machine learning techniques.
> To take into account local weather phenomena and power plants’ behavior.

DELIVERY

> Flexible sending (API, SFTP, etc.).
> Customized format (csv, txt, etc.).
> Dedicated and secured Steadysun’s web interfaces (visualization, data analytics and warnings).
> Forecast performance monitoring.

^
Step 1: DATA ACQUISITION
> From 5 geostationary satellites.
> Different channels providing information on the atmosphere, clouds and aerosols.
> Every 5 to 15 minutes.
^
Step 2: MODELING
> Cloud detection, classification and motion prediction.
> Accurate estimation of clear sky conditions using real-time aerosols prediction.
> Calculation direct and diffuse irradiance components in cloudy conditions.
> PV modeling based on physical models and plant features.
> High-resolution topographical corrections (down to 90m).
> Probabilistic forecasting using physical and statistical approaches.
^
Step 3: OPTIMIZATION
>  Based on historical and/or real-time on-site measurements.
> Continuous accuracy improvements using state-of-the-art machine learning techniques.
> To take into account local weather phenomena and power plants’ behavior.
^
Step 4: DISSEMINATION
> Flexible sending (API, SFTP, etc.).
> Customized format (csv, txt, etc.).
> Dedicated and secured Steadysun’s web interfaces (visualization, data analytics and warnings).
> Forecast performance monitoring.

Sign up for your 30-day free trial now !
Benefit from a presentation of our products & services and discover how they can help you.

OTHER PRODUCTS AND SERVICES

Solar forecasts for the coming days, based on meteorological models, dedicated to avoiding penalties, planify and decrease spinning reserve and sell energy at better prices.

LEARN MORE +

Solar forecasts for the next minutes, based on fisheye cameras looking to the sky in real-time, dedicated to ramp detection and guaranteed PV power/production, to manage reserves in real time.

LEARN MORE +

Electricity load forecast for the coming hours and days, based on deep learning technologies.

A range of customized studies to help fostering renewable energies into the grid and maximize profitability of renewable energy assets.

CONTACT US

+33 (0)9 70 75 34 16

 

CONTACT US

+33 (0)9 70 75 34 16

 

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