Biogas CDM Project of Bagepalli Coolie Sangha

Audit Analysis

This Gold Standard biogas project in India has a VVB-confirmed additionality assessment and a quantified 5% leakage deduction, but is undermined by an extensive list of over 30 material findings, six outstanding corrective actions, and multiple contradictions across documents regarding ERR figures, FNRB values, and monitoring methods. The CDM-to-GS transition adds further documentation complexity, and the absence of a stated buffer pool or reversal-risk treatment for a technology where digester failure is plausible is a notable gap.

Project Description

Red Flags

• ⚠Over 30 material findings logged across verification and monitoring reports, including incorrect emission-reduction table values, double-counted usage days, missing sampling formulae, and inconsistent household-size values between the PDD and ER sheet
• ⚠Six corrective actions remain outstanding, including submission of survey results for sample-size calculation, track-change PDD, and supporting documents for stakeholder consultation
• ⚠No buffer pool percentage is stated in any available document, and reversal events are explicitly marked as not addressed, despite biogas digesters being subject to mechanical failure
• ⚠Contradiction in usage monitoring method: the 2023 verification report states an annual survey, while the PDD (June 2023) describes self-reporting, creating uncertainty about the actual MRV approach
• ⚠FNRB value changed from 0.80 (2017 verification) to 0.95 (2023 verification) and the method shifted from local field measurement to national default, without a clear documented justification for the change

Credit Vintages