Diyao 1MW Hydro Power Project
GS-915 ↗ · current registry ID: GS518
#85of 770 in Renewable energy#32of 204 in China#32of 426 in Gold Standard (GS)#58of 383 in ACM0002
Audit Analysis
The Diyao 1 MW hydropower project is a small-scale avoidance project under Gold Standard with a combined additionality test, jurisdictional baseline, and a well-justified zero-leakage claim. The project delivered exactly the claimed 3,791 tCO2e over its 7-year crediting period, with no over-crediting. Key gaps include the absence of a buffer pool, unconfirmed VVB additionality sign-off, and missing FNRB and usage-rate data.
Red Flags
- No buffer pool percentage stated in any available document, leaving permanence risk unmitigated for a 7-year crediting period
- Additionality test type is described as 'combined' in the 2012 PDD but 'investment' in the 2010 PDD, and explicit VVB confirmation of the additionality assessment is not found in the extracted record
- Grid emission factor of 0.85285 tCO2/MWh is from 2009 and was not updated during the 7-year crediting period, potentially over- or under-estimating baseline emissions
- 20+ comments/requests and 2 corrective actions (generator information error, missing data archive procedure) were raised in the 2016 verification report, indicating documentation quality issues
Credit Vintages Exhausted
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2009 | 1,866 | 1,866 | 0 | |
| 2010 | 1,630 | 1,630 | 0 | |
| 2011 | 1,572 | 1,572 | 0 | |
| 2012 | 2,448 | 2,448 | 0 | |
| 2013 | 2,527 | 2,527 | 0 | |
| 2014 | 2,312 | 2,312 | 0 | |
| 2015 | 2,680 | 2,680 | 0 | |
| 2016 | 433 | 433 | 0 | |
| Total | 15,468 | 15,468 | 0 |
Risk Indicators
Combined test in PDD; VVB confirmation not found
Avoidance project; no buffer pool stated
0% with quantified justification (new-build hydro)
Jurisdictional; grid EF frozen at 2009 value
FPIC, grievance mechanism, safeguards documented
CORSIA and CCP status not stated
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