Delivery programme

Biomethane plants

All ETW biomethane plants are characterised by their low energy consumption, high product purity and low operating costs. The ETW SmartCycle® process enables a high quality product gas with a constant calorific value even with varying raw gas amounts and compositions. Conditioning before feeding into the natural gas grid is not required. Our standardised modules enable very short implementation times. Special sizes are possible.


Volume flow of biogas (dry): up to 550 Nm³/h

Biomethane with 97% CH4: 95-99%

Turn down through flexible operation management: 40-100%

System dimensions (LxBxH): 22m x 14m x 6m

Footprint: 160 m2

Conditioning + ETW SmartCycle PSA: ≤ 0.190 kWh/Nm³

Volume flow of biogas (dry): up to 950 Nm³/h

Biomethane with 97% CH4: 95-99%

Turn down through flexible operation management: 30-100%

System dimensions (LxBxH): 25m x 16m x 6m

Footprint: 300 m2

Conditioning + ETW SmartCycle PSA: ≤ 0.175 kWh/Nm³

Biomethane plant S size up to 1,000 Nm³/h

Volume flow of biogas (dry): up to 1,350 Nm³/h

Biomethane with 97% CH4: 95-99%

Turn down through flexible operation management: 30-100%

System dimensions (LxBxH): 25m x 16m x 6m

Footprint: 300 m2

Conditioning + ETW SmartCycle PSA: ≤ 0.160 kWh/Nm³

Biomethane plant M size up to 1,300 Nm³/h

Volume flow of biogas (dry): up to 1,850 Nm³/h

Biomethane with 97% CH4: 95-99%

Turn down through flexible operation management: 30-100%

System dimensions (LxBxH): 25m x 16m x 6m

Footprint: 300 m2

Conditioning + ETW SmartCycle PSA: ≤ 0.155 kWh/Nm³

Biomethane plant M size up to 1,300 Nm³/h

Volume flow of biogas (dry): up to 3,750 Nm³/h

Biomethane with 97% CH4: 95-99%

Turn down through flexible operation management: 30-100%

System dimensions (LxBxH): 30m x 18m x 6m

Footprint: 500 m2

Conditioning + ETW SmartCycle PSA: ≤ 0.160 kWh/Nm³

Biomethane plant XL size up to 3,000 Nm³/h