Typical and default values – biogas for electricity

Open storage of digestate accounts for additional emissions of methane which change with the weather, the substrate and the digestion efficiency. In these calculations the amounts are taken to be equal to 0,05 MJ CH_(4)/MJ biogas for manure, 0,035 MJ CH_(4)/MJ biogas for maize and 0,01 MJ CH_(4)/MJ biogas for biowaste. Close storage means that the digestate resulting from the digestion process is stored in a gas tight tank and the additional biogas released during storage is considered to be recovered for production of additional electricity or biomethane. Biogas production system Technological option Typical value Default value Greenhouse gas emissions (g CO_(2)eq/MJ) Greenhouse gas emissions (g CO_(2)eq/MJ) Biogas for electricity from wet manure Case 1 Open digestate – 28 3 Close digestate – 88 – 84 Case 2 Open digestate – 23 10 Close digestate – 84 – 78 Case 3 Open digestate – 28 9 Close digestate – 94 – 89 Biogas for electricity from maize whole plant Case 1 Open digestate 38 47 Close digestate 24 28 Case 2 Open digestate 43 54 Close digestate 29 35 Case 3 Open digestate 47 59 Close digestate 32 38 Biogas for electricity from biowaste Case 1 Open digestate 31 44 Close digestate 9 13 Case 2 Open digestate 37 52 Close digestate 15 21 Case 3 Open digestate 41 57 Close digestate 16 22

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Source: EUR-Lex (Cellar) · retrieved 2026-10-28 · Text as adopted (Official Journal); later amendments are not incorporated in this text.