FSW AMMS GHG Mitigation Project in Nanyang City

Audit Analysis

The FSW AMMS project in Nanyang City is a registered VCS anaerobic digestion project with a VVB-confirmed combined additionality test and a thorough verification process (22 CARs closed). However, a significant discrepancy between the PDD ex-ante estimate (364,750 tCO2e) and the monitoring report figure (597,264 tCO2e) raises serious over-crediting concerns, and several key MRV parameters (FNRB, usage rates, buffer pool) are not stated in the available documents.

Project Description

Red Flags

• ⚠The PDD ex-ante estimate of 364,750 tCO2e over the full 10-year crediting period is substantially lower than the 597,264 tCO2e reported in the monitoring report for only ~23 months, implying the project delivered roughly 850% of the pro-rata expectation for the elapsed period — a major over-crediting signal.
• ⚠Free, Prior and Informed Consent (FPIC) was not conducted, despite the project operating on 9 agricultural waste management sites in a rural Chinese community.
• ⚠Reversal/permanence risk is listed in the verification report table of contents but the specific analysis content was not provided in the extracted record, and no buffer pool percentage is stated.
• ⚠FNRB value, usage rate (assumed and verified), and usage monitoring method are all absent from the extracted record, leaving key MRV parameters unverifiable.

Credit Vintages