Wastewater Treatment With Biogas System In Palm Oil Mill At Sawi, Chumporn,Thailand

Audit Analysis

A VCS biogas avoidance project in a Thai palm oil mill with a combined additionality test and a project-specific modeled baseline. The verified emissions reductions (91,121 tCO2e) represent only about 65% of the pro-rata ex-ante expectation for the four-year monitoring window, indicating conservative delivery. However, multiple monitoring data-quality issues, a 0% leakage deduction with minimal justification, and a 'late to verify' registry status temper confidence in the project's integrity and transparency.

Project Description

Red Flags

• ⚠Registry status is 'Late to verify', indicating the project is overdue for its next verification cycle
• ⚠Six corrective actions remain open, including installation of a continuous inline gas analyser and reinstallation of the flare flow meter
• ⚠Leakage deduction is 0% with only a 'deemed negligible' justification and no quantified analysis for a biogas project where flaring or venting is a realistic leakage pathway
• ⚠Baseline is project-specific and modeled rather than jurisdictional or measured, increasing sensitivity to input assumptions
• ⚠Multiple monitoring data gaps were identified (methane content measured periodically rather than continuously, flare flow meter missing for parts of the period, COD monitoring frequency deviated from daily to weekly)

Credit Vintages