Zhongshan County Micro Hydro Project Bundle No.1
GS-70 ↗ · current registry ID: GS1098
#106of 1084 in China#115of 1801 in Gold Standard (GS)#102of 806 in AMS-I.D
Audit Analysis
A small micro-hydro project in China with VVB-confirmed additionality and smart-meter monitoring, delivering roughly 103% of its pro-rata ex-ante expectation over the 2022–2025 monitoring window. A corrected PDD calculation error (10-year vs 7-year crediting period) and a 0% leakage deduction with a 'quantified' justification are the main integrity caveats. Low extraction confidence and unresolved CORSIA/CCP status temper transparency and claim-safety scores.
Red Flags
- PDD B.6.4 emission-reduction estimates were originally calculated for 10 years instead of the 7-year crediting period; corrected by the project proponent after VVB review (2025 verification report).
- The 2020 monitoring report lists two different total_err_claimed values (5,959 and 8,945 tCO₂e) for the same reporting date, creating ambiguity about the correct claimed figure.
- Grid emission factor dropped from 0.6323 (2020 verification) to 0.4472 (2025 verification); the 2025 value is lower, reducing per-kWh credit value, but the 2017 vintage of the factor is not the most current available.
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2011 | 2,401 | 2,353 | 48 | |
| 2012 | 4,022 | 3,942 | 80 | |
| 2013 | 4,318 | 4,268 | 50 | |
| 2014 | 4,051 | 4,051 | 0 | |
| 2015 | 4,250 | 4,249 | 1 | |
| 2016 | 4,814 | 4,814 | 0 | |
| 2017 | 4,233 | 4,233 | 0 | |
| 2018 | 2,673 | 2,673 | 0 | |
| 2019 | 2,929 | 2,924 | 5 | |
| 2020 | 2,966 | 2,966 | 0 | |
| 2021 | 3,000 | 2,988 | 12 | |
| 2022 | 2,738 | 0 | 2,738 | |
| 2023 | 3,035 | 0 | 3,035 | |
| 2024 | 3,160 | 0 | 3,160 | |
| Total | 48,590 | 39,461 | 9,129 |
Risk Indicators
VVB-confirmed investment test
Hydro – no carbon-stock reversal risk
0% deduction, quantified justification
Project-specific, not jurisdictional
Safeguards & grievance noted; FPIC not stated
CORSIA & CCP status not stated
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