Yichang Sunjiawan MSW landfill site LFG recovery to power project
#948of 1084 in China#1087of 1339 in Verra (VCS)#114of 159 in ACM0001
Audit Analysis
A VCS-registered landfill gas recovery project in China with a well-understood project type and inherent permanence advantages, but undermined by a material finding that the ER calculation was incorrect, a contradiction on whether gas capture is legally required, and numerous inconsistencies across documents. The low extraction confidence and 12 inter-document contradictions significantly erode confidence in the data record.
Red Flags
- Material finding: the ER calculation was found to be incorrect by the VVB, with a corrective action to recalculate required (verification report, Nov 2025)
- Contradiction on whether LFG capture is legally required: the validation report (Jan 2021) states it is, while the monitoring report (Oct 2024) states it is not — this directly affects additionality
- Leakage justification shifted from 'quantified' (verification report, Oct 2021) to 'deemed negligible' (verification report, Dec 2022) without clear explanation
- Low extraction confidence across the document set, with 12 contradictions identified between documents
- Ex-post monitoring parameters found incomplete relative to methodology requirements (material finding, verification report Nov 2025)
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2019 | 24,772 | 0 | 24,772 | |
| 2020 | 43,636 | 0 | 43,636 | |
| 2021 | 55,947 | 20,414 | 35,533 | |
| 2022 | 55,188 | 29,725 | 25,463 | |
| 2023 | 64,023 | 60,304 | 3,719 | |
| 2024 | 34,680 | 3,685 | 30,995 | |
| Total | 278,246 | 114,128 | 164,118 |
Risk Indicators
Investment test VVB-confirmed, but capture-legally-required status contradicted across documents
LFG combustion project — no storage or reversal risk; no reversal events reported
0% deduction deemed negligible (reasonable for LFG), but justification shifted from 'quantified' to 'negligible' between reports
Project-specific measured baseline; last reassessment date not stated; not yet due under VCS 10-year rule
FPIC and grievance mechanism present per most recent verification, but contradicted by earlier monitoring report
CORSIA eligibility and CCP status both not stated in available documents
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