A newly developed moving-bed biofilm technology (Cella™, Veolia) was implemented for nitrogen removal at full scale in Denmark (Svinninge WWTP; load = 4500PE) in 2024, as part of an innovation project (KROBIO Hybrid, funded by the Danish EPA) in collaboration with the Danish utility Fors. The Cella plant (Design: 2000PE) was installed and commissioned parallel to the existing activated sludge process to increase the capacity of the plant. Cella is controlled by the Hubgrade-Performance-Plant online control system. Commissioning was finalized at the end of 2025 and TIN levels of <8mg/l were achieved, meeting the project’s objectives. Factors impacting environmental footprint were evaluated. The effluent solids BMP was high, indicating the high energy-recovery potential. Energy consumption was relatively low, especially considering the scale of the system and that mixing remains to be optimized. An average N2O EF of 0.5 % (gN2O-N/gTNin) was determined for an operation period that included N2O peak emissions caused likely by operational disturbances, which suggests a potential for achieving lower emissions. The objective of this presentation will be to discuss in more detail process performance data, including the results mentioned above from the finalised commissioning period that should complement results previously shared at EWWMC 25.