- Involved: ONTRAS & NEUMAN & ESSER Group
- Size: 60 compressors
- Technology: Biogas compression
- Status: In operation, since 2015
- Location: Germany
- Project website: https://www.neuman-esser.de//en/company/media/mobio-on-the-move/
ONTRAS in cooperation with the NEUMAN & ESSER Group, developed a mobile biogas compressor. Almost 60 compressors are running in German biogas plants of varying sizes and feed the purified biomethane into the existing natural gas grid. Depending on the grid, the compressors have to increase the gas pressure of 0 to 9 bar(g) to up to 84 bar(g), local different grid pressures even exist for the same grid operator. This compressor avoids expensive downtime at injection plants, and enables redirection of pipeline gas during maintenance work. This helps ONTRAS to minimize flare-off emissions. Also, in case of a failure or malfunction in a stationary system, it should be possible to connect and use the mobile solution in the short-term.