Ziyang LFG Power Generation Project

Audit Analysis

The Ziyang LFG power generation project has a solid additionality foundation (combined test, VVB-confirmed, capture not legally required) and a reasonable 0% leakage deduction for grid-displacement credits. However, seven material findings—including a 54.94% under-delivery versus the validated PDD estimate, project boundary misrepresentation, and missing QA/QC documentation—along with contradictions in verified ERR figures and baseline characterization, significantly erode confidence in the project's data integrity and documentation quality.

Project Description

Red Flags

• ⚠Verified ERR of 35,998 tCO2e is only ~48% of the pro-rata expectation (~74,500 tCO2e) for the 11-month monitoring period, and the verification report itself flags a 54.94% shortfall versus the validated PDD without adequate assessment
• ⚠Contradiction in verified ERR: 35,998 (verification report, Oct 2022) vs 124,659 (verification report, Feb 2022 / issuance, Mar 2022) — the basis for the discrepancy is not explained in the extracted record
• ⚠Baseline characterization contradicts itself: described as 'measured' in the Oct 2022 verification report but 'modeled' in the Feb 2022 verification report
• ⚠Project boundary was incorrectly depicted in Figures 3-1 and 5-1, omitting the flare system, and the project description initially excluded flaring of excess gas
• ⚠FPIC was not conducted despite the project operating in a community-adjacent landfill setting in China

Credit Vintages