The production of electricity from bio-methane is one of the most environmentally friendly power generation. The German Renewable Energies Act (EEG) provides plant operators ensures investment protection for 20 years. In Lower Saxony, a large number of agricultural enterprises already use this type of support from newly built small plants are amortized in a few years. One of the most modern and efficient plant was commissioned in early February 2011.

G. Contractor Bauunternehmen Büter GmbH & Co. KG (Ringe) was commissioned to complete the construction of a private biomethane shell within just a few weeks in September and October 2010. This consists of a technical building of the storage tank and three circular tanks constructed of concrete in situ: a fermenter (diameter of 21 meters), post-fermentation (24 m) and the waste fermentation tank (32 m). Each tank is 6.00 meters high with a constant wall thickness of 20 cm.
Gravel, sand and grass were dug for the foundation principle of the surface, which requires the management of open water because the local groundwater level is only 1 m below the surface.
Concrete C35/45 was used for the motherboard.
Still in stock, pre-rounded and assembled from the top floor of bio-gas contract, the circular formwork PASCHAL could be placed immediately reach the site. The heavy duty crane in the center of the work was used during the construction of buildings.
Each stage had an exterior length of 14.40 meters and 13.80 meters interior length. The stages involve the creation of one side of the formwork, reinforcement work, closing up the formwork (including the installation of a 1.0 meters high density polyethylene fabric on the top support to protect concrete from corrosion bio-gas), the concrete and the dismantling of order, cleaning and replacement of the forms. These steps work can often be a laborious process than other types of formwork used. But TTR activated phase carried out quickly and easily, especially by eliminating additional adjustments or padding facilities.