YGF Mangshi Household Biogas Tank Project

Audit Analysis

The YGF Mangshi Household Biogas Tank Project is a technology-based biogas project in China with a project-specific baseline and a 5% quantified leakage deduction. However, the verification report (2015) identified eight material findings and required eighteen corrective actions, including discrepancies in household numbers, missing survey details, and an unresolved crediting-period date. The absence of a named VVB, a stated additionality test type, and an independently verified ERR figure significantly weakens confidence in the project's integrity and transparency.

Project Description

Red Flags

• ⚠Eight material findings in the verification report, including a discrepancy in household numbers between the monitoring report and the ER sheet, missing baseline/project survey details, and an inconsistency in emission-reduction calculation values
• ⚠Eighteen corrective actions were required, spanning calculation errors, a missing double-counting declaration, a grid emission-factor data-source error, and failure to report SD monitoring using the Gold Standard template
• ⚠The FNRB value differs between two PDD versions (0.6929 in the June 2014 PDD vs. 0.982 in the December 2013 PDD); the lower value used in the later PDD yields more credits
• ⚠No VVB name, additionality test type, or independently verified ERR figure is stated in the extracted record

Credit Vintages