Avoidance of methane emission from the wastewater treatment facility in K.S. Bio-Plus Co., Ltd., Thailand

Audit Analysis

A CDM methane-avoidance project at a Thai wastewater treatment facility with VVB-confirmed additionality (investment test) and a measured project-specific baseline. The project delivered only about 68% of its pro-rata ex-ante expectation over the monitoring period, suggesting a conservative baseline, but the 22 material findings and corrective actions identified during validation reveal significant initial PDD deficiencies. Leakage was set at 0% with a minimal 'deemed negligible' justification, and several key transparency fields remain unreported.

Project Description

Red Flags

• ⚠22 material findings and 22 corrective actions identified during validation, including missing project emissions from grid electricity, incorrect wastewater flow-rate calculation (270 vs 240 operating days), and an unaccounted fourth generator unit — indicating a substantially deficient initial PDD
• ⚠Leakage deduction of 0% justified only as 'deemed negligible' with no quantified analysis, which is thin for a methane-avoidance project where fugitive emissions from the treatment system are plausible
• ⚠Cumulative verified ERR of 325,068 tCO₂e over the 7.75-year monitoring period is only ~68% of the pro-rata expectation (~476,000) derived from the PDD's 614,180 tCO₂e ex-ante estimate for the full 10-year crediting period, raising questions about baseline accuracy
• ⚠CORSIA eligibility and CCP status are not stated in any available document, leaving dual-channel risk unassessed

Credit Vintages