Sustainability report 2025: a significant reduction of CO₂ emissions

Karlsruhe, July 02, 2026 — FIZ Karlsruhe has published its sustainability report 2025. The report highlights the most important developments and measures taken in the past year in the areas of the environment, climate, and workplace culture.

Once again, the activities focused on the protection of the climate and the environment. FIZ Karlsruhe was able to reduce its CO2 emissions by approx. 1,000 tons compared to the years 2023 and 2024. Key factors contributing to this included the switch to renewable energy sources for electricity, two new photovoltaic systems, and the use of environmentally friendly printer paper.

Progress was also made in improving the energy efficiency of the buildings. At the start of the 2025–2026 heating season, the new district heating transfer station for Building 240 went into operation. In addition, planning for the energy-efficient renovation of Buildings 238 and 241 was completed. Implementation is scheduled for 2026 and 2027.

In addition to environmental issues, the report also addresses developments in the social sphere. Among other things, the health days at the Karlsruhe and Berlin locations continued, the onboarding process for new employees was further refined, and the framework conditions for remote work and flexible working hours were improved.

The report makes it clear that FIZ Karlsruhe is taking important steps toward greater sustainability. At the same time, challenges remain, such as tracking additional greenhouse gas emissions along supply chains or resulting from procurement processes.

The sustainability report will continue to provide annual updates on FIZ Karlsruhe’s goals, measures, and progress. Read the full text of the report here.