China Tongwan Hydropower Project

Audit Analysis

The China Tongwan Hydropower Project is a straightforward CDM small-hydro displacement project with VVB-confirmed additionality and a jurisdictional baseline, but its credibility is undermined by four material findings (including a non-conservative baseline calculation), a seven-fold discrepancy in reported emission reductions between documents, and a low-confidence extraction with no monitoring report available. The project is functional but carries moderate over-crediting and data-reliability risk.

Project Description

Red Flags

• ⚠Seven-fold discrepancy in total emission reductions: the validation report states 325,330 tCO2e while an unidentified document reports 2,277,310 tCO2e — a data-reliability issue that cannot be resolved without the source document.
• ⚠Material finding CAR-2: baseline emissions in the ER calculation spreadsheet were not conservatively calculated, raising over-crediting risk.
• ⚠No buffer pool or permanence mechanism is documented, and no reversal-event data is available for a hydro project exposed to drought and infrastructure risk.
• ⚠Low extraction confidence across the document set, with no monitoring report identified, limits verification of actual performance.

Credit Vintages