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Example on the on-farm project “Bioénergie de la Brie” (French Association<br />
for AD Farmers)<br />
Particularity of injection from the Strasbourg WWT unit (réseau GDS,<br />
Degrémont and Lyonnaise des Eaux)<br />
Suppliers offers (Total Energie Gaz and GDF SUEZ)<br />
The presentations are made in the context of increase of the French biomethane<br />
market.<br />
Grid operators have emphasized the following point: the number of projects is<br />
continuously increasing, as well as distribution or transport grids.<br />
A focus was made on the WWT biomethane injection project in the east of France :<br />
Strasbourg.<br />
Injection of biomethane from WWT sludge is still forbidden; this project intends to<br />
change the perspective on this. The Strasbourg unit will serve as a good example<br />
for elaboration of two studies, namely on sanitary and physic-chemical aspects,<br />
which are the main reasons to refuse injection of WWT sludge biomethane into the<br />
grid yet. This operation received subsidies from the UE program Life+<br />
(www.biovalsan.eu).<br />
The second main topic dealt with was the Bioénergie de la Brie unit; this is the 3rd<br />
injection French project in France which will inject biomethane into the grid;<br />
operation is envisaged in the second part of 2013. The responsible of the project<br />
spokes stressed the following strategic points:<br />
Technologic innovation (membrane)<br />
Seasonality of bio-methane production<br />
New rules<br />
<strong>Gas</strong> analysis and THT odorisation<br />
This project will process 12.000 t/y from agricultural and agro-food industries<br />
activities. The injection capacity will be 100 Nm3/h.<br />
Main discussions<br />
Questions were asked in relation to the minimum size of such projects in order to<br />
become economically viable. In other words, is there a minimum size for injection<br />
projects?<br />
Related to distribution grids one can say that there are basically no rules related to<br />
the required size but assessment has to be done on a case by case base, since<br />
constraints might be different for each project. An upgrading supplier argued that<br />
the minimal size is around 40 Nm3/h of biomethane.<br />
In transportation grids, an operator mentioned 100 Nm3/h as a limit, while others<br />
argued for higher capacities like 200 to 800 Nm3/h, depending on the geographical<br />
location of the project.<br />
Wed. 21st of February afternoon<br />
Opening session (GrDF)<br />
Mobility: ADEME-GrDF agreement for 2013-2015: action plan to develop<br />
CNG? (ADEME)<br />
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