Duerping Coal Mine Methane Utilization Project

Audit Analysis

The Duerping Coal Mine Methane Utilization Project is a CDM methane capture-and-use project with a confirmed investment additionality test by TUV-Sued, but it is undermined by a direct contradiction over whether methane capture is legally required, persistent operational underperformance (gensets running at 60% load, flare blowers inoperable), a project-specific baseline with a 2006 grid emission factor, and a 0% leakage deduction justified only as 'deemed negligible.' The project consistently delivers below its ex-ante estimates, which limits over-crediting risk but signals weak ex-ante modelling.

Project Description

Red Flags

• ⚠Contradiction between the 2010 monitoring report (capture legally required = true) and the 2009 validation report (capture legally required = false) directly undermines the additionality claim; if capture is a legal obligation, the project may not be additional.
• ⚠Multiple material findings document sustained operational failures: Engine no. 2 at 60% load for the entire monitoring period, flare blowers inoperable for ~7 weeks, SCADA connectivity failures, and swapped/abnormal sensor readings — indicating the MRV data stream is unreliable.
• ⚠Grid emission factor of 1.03025 tCO2/MWh is from 2006, more than a decade old at the time of the 2016 monitoring report, and no updated value is provided.
• ⚠Five contradictions across documents (baseline type, legal requirement, additionality test type, total ERR, crediting period dates) indicate poor internal consistency in the project record.
• ⚠Gas capture legally mandated — additionality in doubt

Credit Vintages