CTL Landfill Gas Project

Audit Analysis

The CTL Landfill Gas Project in Brazil has a VVB-confirmed additionality assessment and a structured monitoring framework, but is undermined by nine material findings (including baseline calculation errors), a 0% leakage deduction with contradictory justifications across documents, and the absence of any buffer pool or permanence safeguard data. Multiple corrective actions remain open, and the verified ERR figure is not available, making it impossible to confirm actual delivery against the ex-ante estimate.

Project Description

Red Flags

• ⚠Nine material findings in the verification report, including incorrect application of FCH4 case (Case 4 used instead of Case 3 with 20% default MDBL), use of half-year methane data, and an outdated grid emission factor (2017 instead of 2018), all of which distort the baseline and reduction estimates.
• ⚠Leakage deduction of 0% with the monitoring report stating leakage was 'not addressed' while the validation report claims it was 'deemed negligible' — a direct contradiction that leaves the 0% figure unsupported.
• ⚠No buffer pool percentage or permanence safeguard is stated in any available document for a landfill gas project where biological degradation and flare failure create genuine reversal risk.
• ⚠Total ERR claimed of 534,503 tCO2e (monitoring report, 9-month period) versus 1,117,018 tCO2e (validation report) cannot be reconciled without knowing the exact scope of each figure, and the verified ERR is not reported.

Credit Vintages