AVN08-S-02, Methane Recovery and Biogas Utilization Project, Nghe An Province, Vietnam
#14of 111 in Biogas#7of 25 in Vietnam#39of 213 in CDM (UNFCCC)#2of 22 in AMS-III.H
Audit Analysis
A CDM biogas/methane recovery project in Vietnam with a well-supported additionality case (combined test, VVB-verified, capture not legally required) but a project-specific modeled baseline and no buffer pool. The apparent ERR discrepancy between the PDD and validation report is explained by an annual-versus-cumulative reporting basis (47,178 × 7 = 330,246), which is reassuring. Several key MRV parameters (FNRB, usage monitoring, permanence) are absent from the extracted record, limiting confidence in the full claim.
Red Flags
- Project-specific modeled baseline (not jurisdictional) with last reassessment in 2018; no buffer pool or permanence mechanism documented for a methane-avoidance project
- FNRB value, usage monitoring method, and usage rate are all absent from the extracted record, leaving the energy-displacement claim partially unverifiable
- Leakage justification recorded as 'deemed negligible' in the validation report but a second source references a 'quantified' treatment, creating ambiguity about whether leakage was actually calculated
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2014 | 14,101 | 0 | 14,101 | |
| 2015 | 25,598 | 0 | 25,598 | |
| 2017 | 41,311 | 0 | 41,311 | |
| 2018 | 17,468 | 0 | 17,468 | |
| Total | 98,478 | 0 | 98,478 |
Risk Indicators
Combined test, VVB-verified, capture not legally required
No buffer pool or permanence mechanism documented
0% deduction, 'deemed negligible' but not quantified
Project-specific modeled baseline, last reassessed 2018
Safeguards mentioned, benefit-sharing described, but FPIC an
CORSIA and CCP status not stated in available documents
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