G4E

Expanded 8.5 MW biogas plant from Greenline in operation

The biogas plant in Vettin, located in the municipality of Groß Pankow, went into regular operation in April 2017. The planning office Greenline from Flensburg is the general planner of the plant using input materials such as slurry, solid manure and maize silage. The 8.5 MW biogas plant is operated by the biogas division of the technical contractors Osters & Voss from Wittenberge in the district of Prignitz.

Building on the existing 800 kW biogas site, which went live in 2014, the plant has been expanded further and focuses predominantly on a mix of cattle slurry and energy crops. The raw biogas is converted into bio-natural gas using physio-organic washing processes and then fed into the regional natural gas network of the Brandenburg utility company, E.ON-E.DIS.

All in all, the expanded plant now processes approximately 70,000 t of slurry, 50,000 t of maize silage and 7,000 t of solid manure. In turn, around 75 million kWh of gas and heat are generated from these materials. In real terms, this volume supplies heat and electricity to approximately 16,000 households.

To this end, three fermenters and two secondary fermenters with a fermenting volume of around 23,000 m³ in total have been installed at the biogas plant as well as six digestate storage tanks with a holding capacity of around 42,000 m³. A pump line measuring approx. 2 km in length ensures the efficient and ecological transportation of substrates. The slurry is delivered by a dairy farm directly to the biogas plant.

In particular, thanks to the latest EEG amendment and the modified framework conditions for approval, efficient planning concepts and low building costs are fundamental to the chances of executing biogas projects. Furthermore, waste plants for foreign markets with CO2 certificates are becoming increasingly more important. Here too, competitive kWh generation throughout the operational period plays a decisive role.

(Source: Greenline GmbH & Co KG)

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