Guizhou Wenjiaba CMM Power Generation Project
#17of 189 in Methane#205of 1084 in China#264of 1339 in Verra (VCS)#1of 35 in ACM0008
Audit Analysis
The Guizhou Wenjiaba CMM Power Generation Project is a VCS-registered coal mine methane capture project with a solid additionality case (investment test confirmed by the VVB, capture legally required) and a measured project-specific baseline. However, the absence of a stated buffer pool, a 0% leakage deduction with no supporting justification, and multiple inter-document contradictions (particularly on leakage treatment and safeguards) moderate the overall quality. The project delivered approximately 120% of its ex-ante estimate for the monitored period, indicating no over-crediting risk.
Red Flags
- Leakage deduction is 0% with justification recorded as 'not addressed' in the 2022 verification report, despite the 2021 verification report describing it as 'quantified' — a regression in documentation quality
- Nine contradictions across documents, including conflicting statements on FPIC, grievance mechanism, safeguards, and baseline approach (measured vs. modeled), reducing confidence in the record's internal consistency
- Gas capture legally mandated — additionality in doubt
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2020 | 12,148 | 0 | 12,148 | |
| 2021 | 62,327 | 24,653 | 37,674 | |
| 2022 | 35,379 | 35,379 | 0 | |
| Total | 109,854 | 60,032 | 49,822 |
Risk Indicators
VVB-confirmed investment test; capture legally required
no reversal events reported
0% deduction; justification regressed to 'not addressed'
Project-specific, measured; reassessment not yet due (10-yr interval)
FPIC and grievance mechanism per VVB; conflicting appendix record
CORSIA and CCP status not stated in available documents
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