Bagasse cogeneration project at Lam Son Sugar JSC

Audit Analysis

A CDM bagasse cogeneration project at a Vietnamese sugar factory using the standardized AMS-I.C methodology, with VVB-confirmed investment additionality and a reasonable negligible-leakage justification. However, the project-specific baseline, a grid emission factor frozen at 2008 values, and a notable gap between claimed and verified emission reductions (roughly 75% verification rate) introduce moderate over-crediting risk. Documentation is reasonably complete with all corrective actions resolved, but several sustainability and monitoring details remain unreported.

Project Description

Red Flags

• ⚠Grid emission factor of 0.5558 tCO2/MWh is anchored to 2008 data; Vietnam's grid has decarbonised since, meaning the baseline may overstate the project's marginal reduction
• ⚠Verified ERR of 23,849 tCO2e is only ~75% of the 31,577 tCO2e claimed in the 2020 monitoring report, indicating the VVB applied material downward adjustments
• ⚠No feedstock sustainability assessment, no LCA, and no carbon-content testing data found in the extracted record, leaving the bagasse supply chain unverified
• ⚠Two monitoring reports show different claimed ERR figures (27,932 in Nov 2019 vs 31,577 in Sep 2020), raising a data-consistency question

Credit Vintages