As of version 5.0.0 of the GPI, biogas supplied through grids and used for energy purposes in the product system shall be modelled with a market-based approach, which means that biogas certificates can be used for such biogas. This will apply in PCRs as they are updated to comply with GPI 5.0.0, but not before this.
Before the release of version 5.0.0 of the GPI, we considered biogas certificates as an example of a mass balance approach and as such did not allow these in the development of an EPD. The change in rules is based on developments in standards, such as ECO Platform standards and EN 15941, and in markets.
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