Wuyang domestic waste treatment plant domestic waste landfill gas (biogas) pollution control and comprehensive utilization project

Audit Analysis

A registered VCS landfill gas recovery project in China with a VVB-confirmed combined additionality test, but the verification report flagged that regulatory surplus was not demonstrated, undermining the core additionality claim. Nine material findings and nine corrective actions were raised, and the project delivered roughly 85% of its pro-rata ex-ante expectation for the elapsed monitoring period. Documentation quality is further weakened by a low extraction confidence rating and a grid emission factor discrepancy between the monitoring and verification reports.

Project Description

Red Flags

• ⚠Regulatory surplus not demonstrated: the VVB found the project did not show it goes beyond the legal requirement to capture/destroy landfill gas, a core additionality concern
• ⚠Grid emission factor discrepancy: the monitoring report uses 0.57205 tCO2/MWh (2019) while the verification report references 0.8587, an unexplained ~50% difference
• ⚠Nine material findings and nine corrective actions required, including an incomplete monitoring plan and missing Scope 3 emissions description
• ⚠Leakage justification is inconsistent: the verification report says 'quantified' while the monitoring report says 'deemed negligible', both with a 0% deduction

Credit Vintages