GS1354 Vietnam Small Hydro PoA - Song Mien 5A Hydropower Project

Audit Analysis

A small hydro avoidance project in Vietnam with well-supported additionality (VVB-confirmed investment test, IRR below benchmark) and no reversal risk, but limited verifiable delivery data and a project-specific baseline that introduces moderate over-crediting uncertainty. Multiple contradictions between the 2012 and 2020 validation documents reflect a re-validation cycle rather than data fabrication, yet the absence of a verified ERR figure prevents independent confirmation of claimed credits.

Project Description

Red Flags

• ⚠No verified ERR figure found in the extracted record, making it impossible to confirm the project is delivering the 93,814 tCO₂e claimed in the 2020 PDD
• ⚠Grid emission factor differs substantially between the 2014 PDD (0.5408) and the 2020 validation (0.92975), a 72% increase that materially inflates the credit estimate
• ⚠Leakage deduction is 0% with the justification shifting from 'deemed negligible' (2012) to 'quantified' (2020) without a clear quantified figure in the extracted record
• ⚠34 Corrective Action Requests were raised during verification, including inconsistencies in the grid emission factor and missing monitoring parameters, indicating initial documentation gaps

Credit Vintages