Tuna Hydropower Plant, Turkey

Audit Analysis

The Tuna Hydropower Plant is a registered VCS renewable energy project with VVB-confirmed additionality and a jurisdictional baseline, but its credibility is undermined by 48 corrective action requests, multiple cross-document contradictions (notably on baseline method, crediting period, and total ERR), and the absence of FPIC. The project appears to be under-delivering relative to its ex-ante estimate, which is conservative, but the data inconsistencies raise questions about the reliability of the reported figures.

Project Description

Red Flags

• ⚠48 Corrective Action Requests and 6 Clarification Requests were raised during verification, indicating widespread data quality issues in the monitoring report (e.g., incorrect ER values, missing turbine details, inconsistent proponent information).
• ⚠The monitoring report states a total ERR of 225,351 tCO₂e while the verification report records 55,334 tCO₂e — a four-fold discrepancy that cannot be fully reconciled by the difference between a 10-year crediting period and a 4-year monitoring period.
• ⚠The crediting period is stated as 2012–2022 in the verification report but 2021–2031 in the validation report, creating ambiguity about which period the credits actually cover.
• ⚠FPIC was not conducted per the verification report, despite the monitoring report asserting it was done — a direct contradiction on a fundamental safeguard requirement.
• ⚠Baseline method is described as 'jurisdictional' in the 2025 verification report but 'project-specific' in the 2023 validation report, with no clear explanation for the change.

Credit Vintages

No issuances recorded on the registry.