Bangna Starch Wastewater Treatment and Biogas Utilization Project
#37of 111 in Biogas#9of 22 in Thailand#97of 213 in CDM (UNFCCC)#6of 22 in AMS-III.H
Audit Analysis
A CDM biogas project in Thailand using standardised AMS methodologies to avoid methane emissions from starch wastewater treatment. The project shows reasonable technical design with a measured baseline and investment-test additionality, but is undermined by procedural material findings, a contradictory leakage justification across documents, and an unresolved discrepancy in claimed ERR figures within the same monitoring report. No buffer pool, FPIC, or grievance mechanism is documented, and several key MRV parameters are absent from the extracted record.
Red Flags
- Two materially different claimed ERR values (17,668 and 95,704) appear within the same monitoring report (2021-05-07), creating ambiguity about the true ex-ante expectation and the basis for the 43,550 verified figure
- Leakage justification is contradictory: the validation report (2018) states leakage was 'deemed negligible' while the monitoring report (2021) states it was 'quantified', yet the deduction in both cases is 0%
- Three material findings were raised by the VVB (RINA), including failure to use the latest CDM-PDD form and failure to notify the CDM Board 180 days before crediting-period renewal, with two corrective actions still required
- No FPIC, grievance mechanism, or buffer pool is documented in the available record
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2012 | 26,907 | 0 | 26,907 | |
| 2014 | 105,417 | 0 | 105,417 | |
| 2018 | 162,964 | 0 | 162,964 | |
| 2022 | 103,451 | 0 | 103,451 | |
| Total | 398,739 | 0 | 398,739 |
Risk Indicators
Investment test present but VVB confirmation not explicitly
Low inherent reversal risk (methane destruction) but no buff
0% deduction with contradictory justification across validat
Project-specific measured baseline; last reassessed 2018; PD
Safeguards mentioned and benefit sharing described, but no F
CORSIA eligibility and CCP status not stated in available do
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