Environmental Engineering Reference
In-Depth Information
19.4 Mass balancing according to Biogasregister Deutschland's mode
of operation. Parallel to the transport of biomethane through the natural
gas grid from production to application, Biogasregister Deutschland
offers documentation of quality and quantity. Independent auditors
validate all entries. The final account statement (Biogasregister-Auszug)
documents application of biomethane.
The basic idea behind Biogasregister Deutschland was to provide a
general biomethane standard for the German market. German support
legislation regarding biomethane defines, in a detailed manner, what needs
to be proven but not how it needs to be proven. More than 800 power grid
operating companies have to decide over distribution of EEG support in
Germany and a common standard was thus needed to help market
development. The standard has been defined by a few dozen criteria (dena,
2012b) covering all German support schemes, for example for substrate
types, production facility size or for other facts that need to be proven in
order to gain the different support possibilities in German legislation. With
these criteria, summarized evidence for registered amounts is collected. The
documentation is based on neutral authorized experts who lodge quality and
quantity reports in the database. The German Biogas register thus links the
task of a mass balancing system directly with documentation of biogas
quality.
Another main idea behind the biogas register was to create a basis for
flexible biomethane assets in the German market. Once the register has
gained confidence in the market, market participants can rely on its
standards and documentation and then do not need to rely only on trust
between trading partners - a quantity documented within the Biogasregister
Deutschland can be accepted with confidence without further checking. The
possibility for fraudulent double marketing is negated for those who use the
register because biomethane amounts can only be introduced with the check
of an independent auditor.
Figure 19.4 shows the mode of operation of Biogasregister Deutschland.
It keeps the following principles for all entries.
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