Forecasting of Solar Irradiance and Power


Satellite-Based Real-time Data and Forecasts of Solar Irradiance

PV Power Forecasting

Short-Term Forecasting of PV Power with Sky Imagers

Forecast Periods

We offer forecasting systems for the following time ranges

Short- and Medium-range Forecasting


Solar energy is subject to considerable temporal and spatial fluctuations. With the increasing share of solar energy in our energy supply system, the requirements for solar forecasts are also increasing. These forecasts form the basis for the cost-optimized use of various energy management options such as storage, control energy and controllable loads - all with the aim of integrating solar energy into our energy system at low cost. Today, PV forecasting plays an important role for trading with PV electricity and scheduling of power plants.

At Fraunhofer ISE, we are working on the development of forecasting models for the reliable prediction of the solar power for time scales from a few minutes up to several days and areas from single locations to regions of many kilometers. For this, our team of physicists, meteorologists and IT specialists combines input data from various sources (cloud camera images, satellite-based data, numerical forecasts) into a variety of different forecast models.

The focus of our research activities is the optimization of the forecasts for different applications in close cooperation with the users, as well as the development of probabilistic forecasts for the reliable description of forecast uncertainties and the reduction of the associated costs.



PV Prediction for Grid-Compatible Control of Heat Pumps



Solar Potentials of German Traffic Routes



Operational Delivery of Solar Irradiance and Simulated Photovoltaic Power Data to Transnet BW

Flyer: Forecasting of Solar Irradiance and Power

Flyer: PV Power Forecasting for a Stable Power Grid