Dongrui Animal Manure Management System GHG Mitigation Project in Heyuan City

Audit Analysis

A Gold Standard biogas-to-electricity project in Heyuan, China, with VVB-confirmed additionality and quantified leakage, but undermined by multiple material findings, a design-change FAR, absence of a stated buffer pool, and contradictory ERR figures across documents. The project delivered roughly four times the pro-rata ex-ante expectation for the elapsed monitoring period, raising questions about baseline conservatism or scope expansion. Overall a moderate-quality credit with notable data-reliability concerns.

Project Description

Red Flags

• ⚠No buffer pool percentage stated in any available document, leaving permanence risk unquantified for a biogas project with inherent reversal exposure
• ⚠Verification report (2023-03-14) records reversal events as 'not addressed' while the monitoring report (2024-03-22) states none occurred — permanence was not explicitly evaluated in the verification
• ⚠A FAR was issued for a design change (new breeding swine introduction, Nov 2023), indicating the project scope shifted after validation
• ⚠ERR figures conflict across documents: 346,835 (verification report) vs 701,790 (unidentified document) vs 423,531 (validation report), with the 'unknown' source reducing data reliability
• ⚠Leakage treatment is inconsistent: the validation report deems it negligible while the verification report describes it as quantified

Credit Vintages