Guangzhou Zhujiang Beer Methane Recovery Project (300068)
GS-693 ↗ · current registry ID: GS401
#115of 268 in Biogas#681of 1084 in China#960of 1801 in Gold Standard (GS)#24of 55 in AMS-III.H
Audit Analysis
A Gold Standard biogas-to-electricity project at a Chinese brewery that is currently delivering well below its ex-ante estimates (42% of PDD projections), which is conservative for claim safety but signals a poorly calibrated baseline. Key MRV gaps include a missing VVB name, no verified ERR figure, and no stated FN-RB or usage-monitoring method. The project's additionality rests on an investment test with no legal requirement to capture methane, but VVB confirmation is not documented.
Red Flags
- Actual emission reductions are only 42% of the PDD estimate, with beer production down ~33% and wastewater treated down ~45% during the monitoring period, indicating the baseline assumptions were significantly optimistic
- Leakage deduction is 0% with only a 'deemed negligible' justification and no quantified analysis
- Grid emission factor differs by nearly 43% between the PDD (0.4975, 2015) and the monitoring report (0.87118, 2011), creating uncertainty about which value underpins credit issuance
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2009 | 200 | 0 | 200 | |
| 2010 | 15,540 | 0 | 15,540 | |
| 2011 | 3,768 | 0 | 3,768 | |
| Total | 19,508 | 0 | 19,508 |
Risk Indicators
Investment test present, VVB confirmation not documented
mixed evidence / unresolved risk
0% deduction, 'deemed negligible' justification only
Project-specific modeled baseline, last reassessed 2016
Safeguards and benefit-sharing mentioned; FPIC and grievance mechanism not confirmed
CORSIA and CCP status not stated in available documents
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