Glossary

The national emissions trading system (nEHS) is Germany’s CO₂ pricing mechanism for fuels and combustibles. It sets fixed CO₂ prices per ton of emitted CO₂, thereby also pricing fossil energy in the building sector. The goal is to gradually make fossil heat generation more expensive while making efficiency and renewable alternatives more economically attractive.

For the building sector, the nEHS means that emissions from building operations become predictable costs in the OPEX calculation, increasing the pressure to reduce fossil energy consumption and switch to renewable energy sources.

With its Optimization Bundle, aedifion helps building owners reduce nEHS costs by making energy consumption transparent, automatically detecting inefficient operations, and lowering CO₂ emissions through AI‑based optimizations based on weather forecasts, usage, or electricity prices. This enables heating and cooling systems to operate proactively and much more efficiently, reducing fossil fuel consumption and further lowering nEHS costs.