Dagachhu Hydropower Project, Bhutan

Integrity

The validation report by DNV states that the project is additional, citing financial barrier evidence, CDM revenue dependence, and the absence of main construction at the time of validation. It also documents a conservative methodology choice under ACM0002 and ex-post updating of the combined margin grid emission factor, which helps baseline credibility. However, this is a grid-connected hydropower project in Bhutan/India, so additionality remains somewhat mixed because the case is based on older CDM-era arguments rather than a modern, independently re-tested investment test.

Transparency

The official registry page provides the PDD, validation report, validation opinion on PDD changes, registration history, crediting periods, and multiple monitoring reports with issuance records. The project documents are publicly accessible and the registry metadata is unusually complete, including participant changes and serial ranges. The main gap is that the most recent monitoring documents shown are historical, so transparency is high but not fully current.

Claim Safety

The project is not presented as CCP-approved, and there is no evidence of Article 6 authorization or corresponding adjustment, so buyer claims should be limited to voluntary climate contribution rather than offsetting with host-country adjustment. Vintage risk is moderate because the project’s crediting periods and issuance history are old, even though the registry record is clear. Double-counting risk is reduced by the registry trail and participant authorizations, but claim safety is still below top tier because the credits are legacy CDM-era avoidance units.

Documentation

The registry includes a public PDD, a third-party validation report from DNV, and multiple monitoring reports for 2014-2019 with issuance requests marked issued. The validation report is detailed and cites the underlying feasibility study, approvals, and monitoring approach. What is missing from the provided record is a recent verification/monitoring cycle within the last two years, so the documentation is strong but dated.

Overall

Overall, this is a well-documented, registry-grade project with strong public evidence and a credible audit trail. The biggest strength is documentation: the registry record, validation report, and monitoring reports are all available and internally consistent. The main limitation is that the project is a legacy hydropower avoidance project whose additionality and claim safety depend on older CDM-era assumptions, so confidence is high on record quality but only moderate on forward-looking offset quality. For a buyer, this is a transparent historical project, but not a best-in-class current-quality credit.