Henan CP Group Swine Farm Biogas Recovery and Utilization Project

Audit Analysis

The Henan CP Group swine-farm biogas project has a VVB-confirmed regulatory additionality test and no reported reversal events, but suffers from a project-specific modeled baseline, an unquantified buffer pool, and a contradiction between the validation and verification reports on whether leakage was addressed. Multiple key MRV parameters (FNRB, usage rates, grid emission factor, end-use tracking) are absent from the extracted record, and the low extraction confidence across 11 documents limits assurance. The ERR figures are internally consistent between the monitoring and verification reports, but a conflicting lifetime figure from an unidentified document introduces uncertainty.

Project Description

Red Flags

• ⚠Leakage treatment contradicts between the validation report (not addressed) and the verification report (quantified); the actual deduction percentage is not stated in either document
• ⚠A second ERR figure of 193,928.92 tCO₂e appears in an unidentified, undated document, creating ambiguity about the lifetime ex-ante estimate and the pro-rata delivery ratio
• ⚠Ten corrective actions were required by the VVB, including corrections to leakage calculations, VSLT option selection, and monitoring frequency, indicating the initial documentation was incomplete
• ⚠Minimum extraction confidence is rated low, meaning at least one key document was poorly readable and the full evidentiary picture may be incomplete

Credit Vintages