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GS Small, Low - Impact Hydro Zambia Documentazione completa General Methodology v2.0

*Zengamina Mini Hydro Scheme- Zambia

GS-1696 ↗

5.9 / 10
Integrity
6.2
Transparency
5.8
Claim Safety
5.6
Documentation
6.0

Score Breakdown

Integrity

verified The verification report confirms a combined additionality test and reports no material findings or corrective actions.

missing Baseline reassessment is only shown as 2007, and reversal events are not addressed; no buffer pool percentage is stated.

Transparency

verified The monitoring period is clearly stated as 2011-07-01 to 2012-12-31, and claimed and verified ERs both equal 1,064.

missing Key MRV details are missing, including the usage monitoring method, FNRB method, and public eligibility status for CORSIA or CCP.

Claim Safety

verified Leakage was treated as negligible, and the project is a small hydro scheme with a verified emissions quantity matching the claim.

missing The project-specific baseline and the unresolved crediting-period contradiction reduce confidence in over-crediting risk assessment.

Documentation

verified Three document types were used, including a verification report dated 2013-02-21, and extraction confidence is medium rather than low.

missing Several important fields are not stated in available documents, and the crediting-period inconsistency weakens documentation reliability.

Detailed Analysis

Integrity

The verification report confirms a combined additionality test, and the VVB reported no material findings or corrective actions, which supports the project’s core integrity. However, permanence is weakly documented because reversal events are not addressed and no buffer pool percentage is provided. Baseline information is also limited: the method is project-based and the last reassessment is only shown as 2007.

Transparency

The monitoring period is clearly stated in the verification record, and the claimed and verified emissions reductions both equal 1,064, which is a positive sign for registry consistency. Still, the extracted record does not state the usage monitoring method or the FNRB method, and CORSIA eligibility is not found. These gaps limit the ability to independently assess MRV completeness.

Claim Safety

Claim safety is helped by the fact that leakage was deemed negligible and the verified emissions quantity matches the claimed quantity. Even so, the project uses a project-specific baseline rather than a more standardized jurisdictional approach, and the crediting-period inconsistency creates some over-crediting uncertainty. With no stated CORSIA or CCP status, dual-market claim risk cannot be ruled out from the extracted record.

Documentation

Documentation quality is moderate because three official document types were used and the extraction confidence is medium. The verification report is relatively recent compared with the PDD, but several key fields remain unstated, including buffer pool coverage, usage monitoring method, and FNRB method. The crediting-period contradiction between the verification report and the PDD further reduces confidence in the record.

Overall

I privileged the verification report over the older PDD on the crediting-period question because it is the more recent and project-implementation-specific document, but the discrepancy still lowers reliability. The contradiction between a 2007-07-14 start with no end date and the PDD’s 2008-01-01 to 2022-12-31 period is material and should be resolved. Overall, the project looks reasonably supported on additionality and reported issuance, but incomplete permanence, MRV, and eligibility evidence keep the score in the middle range.

Audit Analysis

This is a small hydro project with some solid safeguards and a verified emissions claim, but the evidence base is incomplete on several core quality questions. Additionality was tested, leakage was treated as negligible, and the VVB reported no material findings, yet permanence, baseline reassessment, and some usage-monitoring details are not fully documented.

Project Description

Developer: Climate Impact Partners Limited Type: Small, Low - Impact Hydro Size: Micro Scale Crediting period: 2007-07-14 → 2022-07-13 Estimated annual credits: 4385 tCO2e SDGs: Goal 13: Climate Action

Red Flags

  • The crediting period is inconsistent across documents: the verification report shows a start date of 2007-07-14 with no end date, while the PDD states 2008-01-01 to 2022-12-31.
  • Permanence and leakage controls are only partially evidenced: reversal events are not addressed and no buffer pool percentage is stated.
  • Transparency is limited because the usage monitoring method, FNRB method, and CORSIA/CCP status are not stated in the extracted record.

Credit Vintages Exhausted

Issued Retired Available
2007
87 87 0
2008
233 233 0
2009
314 314 0
2010
781 781 0
2011
944 944 0
2012
1,122 1,122 0
Total 3,481 3,481 0

Cosa migliorerebbe questo punteggio

  • Publish a clear reconciliation of the crediting period across the PDD and verification report, with the governing rationale for the final dates used.
  • Provide explicit documentation for permanence and MRV, including buffer pool treatment, reversal-risk handling, usage monitoring method, and any CORSIA/CCP eligibility status.

Questi suggerimenti indicano quali prove pubbliche aggiuntive potrebbero migliorare il livello di confidenza di questa valutazione. Non garantiscono un punteggio futuro più alto.

Risk Indicators

Additionality

Combined test present, but VVB confirmation not explicit

Permanence

No reversal events addressed and no buffer pool stated

Leakage

Leakage deemed negligible

Baseline

Project baseline stated, reassessment timing limited

Safeguards

FPIC, grievance mechanism, and safeguards documented

Double-claim

CORSIA/CCP status not stated

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Analysis Provenance Scored 2026-04-17 General Methodology v2.0 Documentazione completa

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