been sourcing 100% of its electricity from renewable energy sources since January 1, 2023 and FAIR since July 1, 2023. According to the energy supply company, these are TÜV Süd-certified hydroelectric and [...] to 100 % green electricity, GSI was already able to save around 15,000 tons of CO₂ equivalents in 2023 - this corresponds to the average annual electricity consumption of around 13,500 German households [...] the sustainable development of the research institutes. © GSI & FAIR Energy efficiency measures In 2023 a total of over 50 smaller and larger energy efficiency measures were started or implemented. The