Coyula Landfill Gas Project

Audit Analysis

The Coyula Landfill Gas Project is a CDM-registered LFGTE project in Guadalajara, Mexico, with VVB-confirmed additionality via an investment test and a well-documented Combined Margin grid emission factor. However, the project record is hampered by the absence of any monitoring or verification data, a project-specific modeled baseline, a grid emission factor contradiction between documents, and a low extraction confidence rating that limits assurance in the underlying data. Multiple material findings and corrective actions from the validation stage further temper confidence in the project's data integrity.

Project Description

Red Flags

• ⚠Grid emission factor contradiction: the validation report states 0.56025 tCO2/MWh (Combined Margin) while an appendix lists 0.6398 tCO2/MWh (Operating Margin only), a 14% discrepancy that affects all baseline calculations
• ⚠No monitoring reports or verification reports found in the extracted record; total verified ERR is not stated, making it impossible to confirm whether the 867,070 tCO2e lifetime claim was actually delivered
• ⚠Low extraction confidence across the document set, indicating at least one key document was poorly readable, reducing reliability of all extracted figures
• ⚠Fourteen material findings and eight corrective actions were raised during validation, including issues with baseline spreadsheets, additionality tool version, and monitoring plan parameters

Credit Vintages

No issuances recorded on the registry.