
Mannheim 001
The world's first e-methanol plant powered by wastewater — turning biogenic CO₂ from a municipal treatment plant into certified green methanol.
Mannheim 001 is the pilot plant where ICODOS' patented hybrid process was first proven at scale — the world's first fully integrated, automated and dynamically operated e-methanol plant. Built with the Karlsruhe Institute of Technology (KIT) on the grounds of the Mannheim wastewater treatment plant, it captures biogenic CO₂ from the site's sewage biogas and converts it, with green hydrogen, into liquid e-methanol. It shows how a wastewater treatment plant can become a renewable-fuel hub — and lays the foundation for everything that followed, including POSEIDON and the commercial Plant S and Plant M designs.
The opening of Mannheim 001
Key Facts
Type
Pilot plant
CO₂ source
Biogenic CO₂ from sewage biogas
CO₂ capture
>99%
Operation
>5,000 h operated
Partners
KIT · EBS Mannheim
What Mannheim 001 proved
01
The world's first fully integrated, automated and dynamically operated e-methanol plant — and the first to run on biogenic CO₂ from wastewater
02
Turns unavoidable biogenic CO₂ into a drop-in molecule for the maritime and chemical industries, making wastewater treatment plants a replicable renewable-fuel blueprint
03
Proved the patented hybrid process end-to-end — the foundation for POSEIDON and the commercial Plant S and Plant M designs
Mannheim 001 in action






