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VCS avoidance Türkiye Registry: Registered Documentazione completa General Methodology v2.0

Ceyhan 61.7 MW Hydropower Project

VCS-810 ↗

5.6 / 10
Integrity
5.2
Transparency
6.1
Claim Safety
5.0
Documentation
7.0

Score Breakdown

Integrity

verified Additionality is described as an investment test and is stated as confirmed by the VVB in the monitoring report (2022).

missing Baseline is project-specific and key parameters show inconsistencies across documents (grid emission factor and crediting period), undermining baseline reliability.

Transparency

verified Monitoring period is clearly stated (2018-06-01 to 2020-05-31) and the monitoring report (2022) reports no material findings.

missing Core quantitative results vary widely across validation/monitoring documents (ERR totals and grid emission factor), reducing transparency and traceability.

Claim Safety

verified The project is explicitly marked as not CORSIA-eligible in the extracted record, lowering aviation-claim exposure.

missing Over-crediting risk is elevated by contradictory ERR totals and conflicting grid emission factor values across documents.

Documentation

verified A relatively large document set was used (19 records including PDD, validation, monitoring, issuance) with high extraction confidence.

missing Corrective actions in the monitoring report (2022) indicate missing key supporting evidence (EIA certificate and stakeholder meeting records).

Detailed Analysis

Integrity

The monitoring report (2022) indicates additionality was assessed using an investment test and states it was confirmed by the VVB, which supports additionality. Baseline setting is project-specific under ACM0002, but baseline credibility is weakened by conflicting grid emission factor values between the monitoring report (2022) and a later validation report (2022). Leakage treatment is also weak: the monitoring report (2022) shows a 0% leakage deduction while leakage is recorded as not addressed, which is not robust for integrity.

Transparency

The monitoring report (2022) clearly defines the monitoring period (2018-06-01 to 2020-05-31) and reports no material findings. However, transparency is reduced by major inconsistencies in reported emission reductions across documents, including different totals in validation reports (2012 and 2022) versus the monitoring report (2022). The grid emission factor discrepancy (monitoring report 2022 vs validation report 2022) further reduces traceability of calculations.

Claim Safety

The extracted record states the project is not CORSIA-eligible, which reduces the risk of high-profile aviation-related claims. Nonetheless, claim safety is constrained by over-crediting uncertainty: the verified ER figure differs materially across documents (monitoring report 2022 vs validation report 2022), and the grid emission factor differs between monitoring and validation documents in 2022. Leakage is also inconsistently treated (0% deduction with conflicting narrative), which increases greenwashing/over-crediting risk.

Documentation

Documentation coverage is relatively strong: the evidence set includes PDD, validation, monitoring, and issuance records, and extraction confidence is high. However, the monitoring report (2022) lists corrective actions requiring provision of an “EIA Not Required Certificate” and stakeholder meeting records, indicating gaps in supporting evidence. These missing items reduce confidence that safeguards and permitting/stakeholder processes are fully evidenced in the accessible record.

Overall

I privileged the monitoring report (2022-04-12) for the 681,250 ER figure because it is tied to the monitored period and is the most directly relevant MRV document, but the presence of much lower ER totals in validation reports (2012-12-21 and 2022-03-07) is a major reliability concern and drives scores down. For leakage, I treated the situation conservatively as inadequately addressed because the monitoring report (2022) indicates leakage is not addressed while another validation record (2022) says it was quantified; this inconsistency undermines confidence in the 0% deduction. For safeguards/additionality/grievance/benefit-sharing/FPIC, I accepted that these are present as stated in the monitoring report (2022) but discounted the strength due to older validation (2012) stating they were absent and a PDD record (2022) conflicting on VVB confirmation of additionality. For baseline parameters, I privileged the later validation report (2022-12-12) for the grid emission factor value (0.4929) over the monitoring report (2022-04-12) value (0.615) because validation typically fixes baseline parameters, but the contradiction itself reduces confidence; similarly, I treated the crediting period as unclear because monitoring (2010–2020) conflicts with validation (2020–2030), which affects interpretability of credited volumes.

Audit Analysis

The project has a clear VCS renewable-energy methodology (ACM0002) and the monitoring report reports no material findings, with claimed and verified reductions matching in the extracted record. However, multiple cross-document inconsistencies (ERR totals, grid emission factor, crediting period, and safeguards/additionality statements) and weak leakage treatment reduce confidence in the robustness of the credited outcome.

Project Description

The Ceyhan project is a run-of-river hydro electrical power plant with a total installed capacity of 63,468MWm/61,704 MWe located in Turkey. The project aims to generate electricity from hydropower to meet the ever-increasing demand in the region and contribute to the sustainability of electricity generation. It will lead to an estimated annual emission reduction of approximately 159.463 tons of CO2e and has strong sustainable development aspects.

Red Flags

  • Large inconsistencies in reported/verified emission reductions across documents (e.g., 681,250 vs ~272,388–287,566).
  • Leakage is recorded as a 0% deduction while leakage is also described as either “quantified” or “not addressed,” creating MRV ambiguity.

Credit Vintages

Issued Retired Available
2010
48,671 48,671 0
2011
130,427 130,427 0
2012
93,290 93,290 0
2013
614 614 0
2016
1,172 1,172 0
2020
60,000 37,078 22,922
Total 334,174 311,252 22,922

Cosa migliorerebbe questo punteggio

  • Publish a clear reconciliation table across validation/monitoring documents explaining why ER totals differ (272,388/287,566 vs 681,250) and which figures correspond to which periods and issuance events.
  • Provide complete supporting evidence for corrective actions (EIA certificate and stakeholder meeting records) and standardize leakage and baseline parameter statements (including a single authoritative grid emission factor and crediting period).

Questi suggerimenti indicano quali prove pubbliche aggiuntive potrebbero migliorare il livello di confidenza di questa valutazione. Non garantiscono un punteggio futuro più alto.

Risk Indicators

Additionality

Investment test stated; cross-document inconsistency on VVB confirmation

Permanence

Avoidance renewable-energy project; no reversal events indicated

Leakage

0% deduction with inconsistent/unclear leakage justification

Baseline

Project-specific baseline with conflicting grid EF and unclear reassessment

Safeguards

Safeguards/FPIC/grievance reported in monitoring but contradicted by older validation

Double-claim

Not CORSIA-eligible; CCP status not stated

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Analysis Provenance Scored 2026-04-02 General Methodology v2.0 Documentazione completa

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