Avoidance of methane production in POME treatment through Boustead Biotherm Palmass Technology

Audit Analysis

A CDM methane-avoidance project in Malaysia using composting of palm oil mill effluent, with a VVB-verified investment additionality test and a standardized methodology (AMS-III.F). The project significantly under-delivered relative to its ex-ante estimate (approximately 36% of the pro-rata expectation for the elapsed monitoring period), which reduces over-crediting risk but raises questions about baseline accuracy. Key concerns include a 0% leakage deduction with contradictory justifications across documents, a project-specific modeled baseline, and multiple material findings including monitoring deviations and design changes.

Project Description

Red Flags

• ⚠Leakage justification is contradictory: the validation report (2008) states leakage was 'deemed negligible' while the monitoring report (2012) characterizes it as 'quantified,' yet the deduction in both cases is 0% — the basis for the zero deduction is unclear.
• ⚠The monitoring report records a temporary deviation where COD samples were not sent for external analysis and internal analysis was not carried out for specific periods, undermining the reliability of the verified emissions figures.
• ⚠The project design changed mid-crediting-period (composting duration altered from 7 to 4 days then back to 8 days; drying process ceased after May 2009), yet the baseline and methodology were not formally reassessed in the available documents.
• ⚠Two corrective actions remain outstanding (QA/QC procedure for COD samples and revised monitoring frequency for oxygen/temperature), indicating the monitoring plan was not fully compliant at the time of the report.

Credit Vintages