Hengmen NG-fired Power Generation Project

Audit Analysis

A CDM fossil-fuel-switch project (coal-to-natural-gas) in China with a solid VVB-confirmed investment additionality test and inherently low reversal risk. However, the grid emission factor dates from 2005 while monitoring covers 2011–2012, the 0% leakage deduction rests on a thin 'quantified' justification, and several key monitoring parameters (FNRB, usage monitoring, verified ERR) are absent from the extracted record. The project delivered roughly 83% of its pro-rata expectation, indicating no over-crediting, but data gaps and an outdated emission factor limit confidence.

Project Description

Red Flags

• ⚠Grid emission factor of 0.3791 tCO2/MWh is drawn from 2005 data while the monitoring period spans April 2011 to October 2012, raising accuracy concerns for the displacement calculation.
• ⚠Leakage deduction is 0% with only a 'quantified' justification label; no specific quantification or methodology for the leakage assessment is provided in the extracted record.
• ⚠Baseline method is described as 'project' in the 2012 monitoring report but 'jurisdictional' in an appendix, creating ambiguity about the baseline construction.
• ⚠FNRB method, usage monitoring method, and total verified ERR are all absent from the extracted record, limiting independent verification of the claimed reductions.

Credit Vintages