If the levy reduction is claimed, the completed tool must be submitted to the responsible transmission system operator by all eligible electricity supply companies, end consumers and self-consumers no later than the annual report in addition to the other reporting obligations pursuant to Sections 74 and 74a EEG 2021. The transmission system operators reserve the right to request the tool during the year in certain cases. The transmission system operators also advocate the use of the tool when billing the grid operator for the levy reduction.
Further details can be found in the explanatory document also provided.