Online extrapolation of the actual generation of electricity from solar energy

Different calculation specifications

Since January 2015, the calculations of the data presented here have been based on different specifications than before:

Up to and including 2014, the total electricity feed-ins generated nationwide and marketed by the transmission system operators (TSOs) or direct marketers were used to publish the online extrapolation of the actual generation of electricity from solar energy.

Since 2015, the extrapolation in accordance with Annex 1 Number 5.1 Section 23a EEG has been published instead: reductions in the feed-in capacities of the installations on which the extrapolation is based are accordingly not taken into account in the extrapolation.  

A comparison of the figures before and after the turn of the year 2014/2015 is therefore only possible to a limited extent and taking into account the different calculation specifications from the respective underlying Renewable Energy Sources Act.

Note on the provisional nature of current data

The values shown are provisional data until the publication of the energy source-specific market values for the respective month. In the course of the market value calculation, the extrapolation is checked again and corrected if necessary before being published at the beginning of the following month.  

Downloading the projections, both via an application programming interface (API) and here, is only possible once these market values have been published.

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