ESTRE Itapevi Landfill Gas Project (EILGP)

Audit Analysis

The ESTRE Itapevi Landfill Gas Project is a CDM-registered methane capture project in Brazil with a combined additionality test and a project-specific modeled baseline reassessed in 2022. However, significant data gaps persist: no monitoring reports or verified ERR figures are available, the leakage justification is contradictory between the PDD and validation report, and the claimed ERR differs by a factor of eight between the two documents. The project's fundamental design is sound for a landfill gas avoidance project, but the evidentiary record is thin and the contradictions undermine confidence in the reported figures.

Project Description

Red Flags

• ⚠Claimed ERR differs by a factor of ~8 between the validation report (128,419 tCO2e) and the PDD (1,027,351 tCO2e); while this may reflect a single crediting period versus full project lifetime, the discrepancy is not explicitly reconciled in the available documents.
• ⚠Grid emission factor is 0.3004 in the validation report but 0.5985 in the PDD — a 2× difference that materially affects the baseline calculation.
• ⚠Leakage justification is stated as 'quantified' in the PDD but 'not addressed' in the validation report, leaving the basis for the 0% deduction unclear.
• ⚠No monitoring reports or verified ERR figures are available in the extracted record, making it impossible to assess actual delivery against claims.
• ⚠Additionality verification by the VVB is not explicitly confirmed in the available documents despite a combined test being described.

Credit Vintages