Recommendations for reliable methane emission rate quantification at biogas plants

Methane, which is a very important greenhouse gas (GHG), is a main component in biogas. The loss of methane within the biogas production and utilisation process should be minimised because of its impact on the environment, safety issues and the associated economic loss for the biogas plant operator. This document is a product of the project “MetHarmo – European harmonisation of methods to quantify methane emissions from biogas plants”, which aimed to compare different methods and intended to highlight their strengths and limitations. Since there are different methods available to quantify methane emissions, a need to compare the results of measured methane emissions from different measurement teams and/or different biogas plants is identified.