Uberlandia landfills I and II

Audit Analysis

The Uberlândia Landfills I and II project is a VCS-registered landfill gas capture project with solid additionality (combined test confirmed by TÜV NORD CERT, negative IRR without CDM revenues) and minimal permanence risk inherent to LFG destruction. However, significant contradictions between the PDD, validation report, and monitoring report on lifetime ERR figures, grid emission factors, and crediting period dates introduce data-reliability concerns, and several sustainability and usage-monitoring details are absent from the extracted record.

Project Description

Red Flags

• ⚠Lifetime ex-ante ERR differs by a factor of ~16 between the PDD (703,656 tCO₂e) and the validation report (43,275 tCO₂e); the PDD figure is privileged as the full-crediting-period estimate, but the discrepancy is unexplained in the documents.
• ⚠Grid emission factor differs substantially between the PDD (0.1635) and the monitoring report (0.3593), a 120% difference that materially affects the electricity-displacement component of the ER calculation.
• ⚠Crediting period is stated as 6 months in the monitoring report but 7 years in the validation report; the 7-year period is privileged as consistent with VCS registration norms.
• ⚠Only a single 6-month monitoring period is documented for a 7-year crediting period, leaving the majority of the crediting period unverified in the available record.

Credit Vintages