ETW Energietechnik GmbH is a manufacturer of combined heat and power plants and biomethane systems for biogas plants, sewage treatment plants, landfills and other applications. The goal is to maximise the cost-effectiveness and availability of the customer´s system. ETW is a capable partner from engineering to plant construction and service.

The product portfolio includes biomethane plants based on pressure swing adsorption, combined heat and power plants, and CO₂ liquefaction.