Papop Biogas and Renewable Energy Project in Thailand

Audit Analysis

The Papop Biogas project in Thailand has VVB-confirmed additionality and no reported reversal events, but is undermined by a project-specific modeled baseline, a 0% leakage deduction, multiple material findings (including repeated plant shutdowns for BOT asset transfer), 18 outstanding corrective actions, and a significant discrepancy between the PDD and monitoring report on claimed emission reductions. The overall picture is one of a technically verified project with substantial documentation and data-reliability gaps that limit confidence in the credit figures.

Project Description

Red Flags

• ⚠Claimed ERR of 278,907 tCO2e in the monitoring report (Oct 2024) contradicts the PDD figure of 90,321 tCO2e (Jan 2024) — a 3× discrepancy that is not explained in the extracted record
• ⚠Plant was shut down for BOT asset transfer during July 2021–Feb 2022 and again from April 2023–Dec 2024, with no monitoring data collected during the second shutdown; an arbitration decision on VER rights was made after the BOT period
• ⚠18 corrective actions remain outstanding, including calibration gaps for flow meters and gas analyzers, a CODPJ,y calculation error, and missing monitoring methodology details
• ⚠Grid emission factor differs between the validation report (0.4401, Jun 2024) and the verification report (0.5692, Dec 2024), directly affecting the baseline calculation
• ⚠FPIC was not conducted despite safeguards and benefit-sharing being mentioned in the project documentation

Credit Vintages