The Federal Ministry of Economics and Energy has launched new funding programmes from 02.01.2019.
Perhaps your company can also benefit from them. It is important that the application must be requested and approved prior to implementation.
https://www.bmwi.de/Redaktion/DE/Pressemitteilungen/2019/20190102-energieeffizienz-in-der-wirtschaft-foerderprogramme-fuer-unternehmen.html