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GSEnergy Efficiency - DomesticTanzania, United Republic ofGeneral Methodologyv2.1

OYU – Fuelling a Brighter Future in Tanzania VPA01

GS-4742 ↗ · current registry ID: GS13087

#554of 1329 in Industrial#6of 19 in Tanzania#864of 1801 in Gold Standard (GS)

5.0/ 10
Integrity
4.5
Transparency
5.5
Claim Safety
5.0
Documentation
5.0

Audit Analysis

The OYU cookstove project in Tanzania has VVB-verified additionality and no reversal events, but is weighed down by an unusually large number of material findings (over 30), a project-specific baseline, and a contradiction indicating FPIC was not conducted. The verified emissions reductions (69,851 tCO₂e) exceed the pro-rata expectation for the three-month monitoring period by roughly 3.3×, which reduces over-crediting risk but raises questions about the accuracy of the ex-ante estimate. Governance clarity around multiple implementing entities remains a persistent concern across documents.

Red Flags

  • FPIC contradiction: the 2026 validation report states FPIC was not conducted, while the 2023 PDD claims it was; the more recent and authoritative validation report is privileged, leaving a safeguards gap
  • Over 30 material findings and 25+ corrective actions identified by the VVB, including missing implementer agreements, unclear entity roles/ownership, and incomplete distribution databases
  • Fuel stacking (charcoal/coal use alongside improved cookstoves) observed during the VVB's onsite visit, indicating the baseline scenario may not fully reflect actual household behaviour
  • Nine cross-document contradictions in key parameters (lifetime ER, claimed/verified ER, fNRB method, leakage deduction, usage rate), reducing confidence in the consistency of the project record

Credit Vintages

No issuances recorded on the registry.

Risk Indicators

Additionality

VVB-confirmed combined test

Permanence

Energy efficiency; no reversals

Leakage

5% quantified deduction

Baseline

Project-specific; fuel stacking observed

Safeguards

Grievance present; FPIC not conducted

Double-claim

CORSIA/CCP status not stated

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Analysis ProvenanceScored2026-09-05General Methodology v2.1

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