Qingfeng Biogas Recovery and Utilization Project

Audit Analysis

The Qingfeng Biogas project (VCS-3126) has a VVB-verified additionality assessment and no reported reversals, but the verification report lists ten material findings covering missing equations, incorrect sectoral scope, and absent monitored parameters, yet no corrective actions were required. The project delivered roughly 75% of its pro-rata ex-ante expectation for the elapsed monitoring period, which is conservative but the three cross-document contradictions—particularly the ten-fold gap between the PDD lifetime estimate and the monitoring-period figure—undermine confidence in the data chain. Buffer pool, leakage deduction percentage, and CORSIA/CCP status are all unstated, leaving key permanence and double-claiming questions open.

Project Description

Red Flags

• ⚠Ten material findings in the verification report (missing heat-generation equation, incorrect sectoral scope, missing NEXLT and N2O option justifications, absent boiler-efficiency validation, missing flaring discount) yet zero corrective actions were recorded, creating an unexplained gap between identified deficiencies and remediation.
• ⚠The PDD states a lifetime ex-ante estimate of 1,143,690 tCO₂e while the monitoring report claims only 110,788 tCO₂e for the period; although these are on different bases, the ten-fold gap and the absence of a clear reconciliation in the extracted record raise data-reliability concerns.
• ⚠FPIC is reported as conducted in the verification report but not conducted in the monitoring report (both dated 2025-01-20), a direct contradiction on a fundamental safeguard requirement.

Credit Vintages

No issuances recorded on the registry.