Zhengbang AWMS GHG Mitigation Project in Sichuan Province

Audit Analysis

The Zhengbang AWMS project in Sichuan has a VVB-confirmed additionality assessment and a quantified leakage treatment, but is undermined by a project-specific modeled baseline, the absence of a stated buffer pool, and a large volume of material findings (18 items) covering calibration gaps, missing calculation formulas, and unassessed baseline alternatives. Contradictions in verified emission reduction figures across documents, combined with low extraction confidence, create meaningful uncertainty around the actual credit volume. All corrective actions were closed, which partially offsets the quality concerns.

Project Description

Red Flags

• ⚠Verified ERR figure of 261,094 in the monitoring report (Oct 2023) contradicts the 77,652 in the verification report (Jun 2023) — a 3.4× discrepancy that cannot be reconciled from available documents
• ⚠Calibration dates for weight measurers, flowmeters, and gas analysers did not cover the entire monitoring period, undermining measurement reliability
• ⚠Ex-ante estimates used 180 days while ex-post calculations used 365 days for animal days, creating an inconsistency in the credit calculation basis
• ⚠Baseline alternatives (IPCC methods 6, 8, 17) were not clearly defined or validated in the verification report

Credit Vintages