Guangzhou Zhujiang Beer Methane Recovery Project (300068)_pre-CDM VER
GS-1194 ↗ · current registry ID: GS784
#32of 268 in Biogas#329of 1084 in China#374of 1801 in Gold Standard (GS)#8of 55 in AMS-III.H
Audit Analysis
A Gold Standard biogas-to-electricity project in China whose first-year verification revealed a significant 49% under-delivery relative to the PDD's lifetime estimate, compounded by a two-month calibration gap in power meters. The project is under-crediting rather than over-crediting, which limits greenwashing risk, but the project-specific modeled baseline and thin leakage justification weaken the integrity case. Documentation is adequate with three key documents and high extraction confidence, though several important fields (FNRB, usage monitoring, CORSIA status) remain unreported.
Red Flags
- Verified emission reductions (17,656 tCO2e) are only ~49% of the pro-rata expectation (~35,780 tCO2e) for the first monitoring year, indicating the PDD baseline was substantially over-optimistic
- Power meters for two generators were not calibrated for approximately two months of the monitoring period (20 Dec 2008 – 19 Feb 2009), forcing the VVB to zero out that period's reductions
- Beer production dropped ~33% and wastewater volumes fell ~35% during the monitoring period, suggesting the project's feedstock availability is highly sensitive to market conditions and the baseline may not be robust
- No buffer pool percentage is stated in any available document, leaving permanence risk unquantified even though biogas projects carry lower reversal risk
Credit Vintages Exhausted
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2008 | 334 | 334 | 0 | |
| 2009 | 17,322 | 17,322 | 0 | |
| Total | 17,656 | 17,656 | 0 |
Risk Indicators
Investment test present; VVB confirmation not explicitly recorded
Biogas-to-electricity; immediate on-site use; no reversal events reported
0% deduction, justified as 'deemed negligible' without quantified analysis
Project-specific and modeled; reassessment date not stated
Safeguards and benefit sharing mentioned; FPIC and grievance mechanism not confirmed
CORSIA and CCP status not stated in available documents
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