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GSSmall, Low - Impact HydroTurkeyAMS-I.D

ÇAY WEIR AND HYDROELECTRIC POWER PLANT

GS-76 ↗ · current registry ID: GS1105

#724of 1935 in Renewable energy#153of 295 in Turkey#401of 1801 in Gold Standard (GS)#248of 806 in AMS-I.D

5.5/ 10
Integrity
5.5
Transparency
5.5
Claim Safety
5.0
Documentation
6.5

Audit Analysis

A small hydro project in Turkey with VVB-verified additionality and a straightforward smart-meter monitoring system, but undermined by a project-specific baseline (contradicted by the monitoring report), a 52% pro-rata under-delivery in the first monitoring period, and the absence of FPIC. Fifteen corrective actions were raised and closed during verification, indicating initial documentation gaps that were remediated, while forward-looking environmental obligations (fish passage, sediment management, minimum water flow) remain to be confirmed.

Red Flags

  • The first monitoring period delivered only ~52% of the pro-rata ex-ante expectation (17,066 tCO₂e vs. ~33,100 tCO₂e expected for 1.5 of 7 crediting years), suggesting the lifetime estimate of 154,444 tCO₂e may be optimistic or that hydrological conditions are weaker than modelled.
  • Free, Prior and Informed Consent was not conducted despite the project involving a weir and potential land expropriation, as acknowledged in the corrective actions.
  • The validation report (Jan 2017) lists a claimed ERR of 22,063 tCO₂e while the verification report (Jun 2018) reports 17,066 tCO₂e for the same monitoring window, a 23% discrepancy that was not explicitly reconciled in the extracted record.
  • Baseline method is stated as 'project' in the verification report but 'jurisdictional' in the monitoring report, creating ambiguity about the actual baseline construction.

Credit Vintages

IssuedRetiredAvailable
2016
7,9232687,655
2017
9,1431828,961
Total17,06645016,616

Risk Indicators

Additionality

VVB-confirmed combined test

Permanence

Technology-based; no carbon-stock reversal risk

Leakage

Deemed negligible; reasonable for grid-connected hydro

Baseline

Project-specific; contradicted by monitoring report

Safeguards

Grievance mechanism present; FPIC not conducted; environmental obligations pending

Double-claim

CORSIA and CCP status not stated in available documents

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Analysis ProvenanceScored2026-09-10AMS-I.D

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