Community Carbon Efficient Cooking Programme - Tanzania-1

Audit Analysis

A VCS cookstove project (VM0050) in Tanzania with confirmed additionality, no reversal events, and a quantified 5% leakage deduction, but hampered by 13 cross-document contradictions—including a significant discrepancy in the crediting period (7 vs 21 years) and the functional newness ratio (0.91 vs 0.6734)—that undermine confidence in the consistency of the project's quantification basis. The project delivered roughly 44% of the pro-rata annual expectation under the 7-year crediting period, which is conservative but raises questions about baseline calibration.

Project Description

Red Flags

• ⚠Crediting period stated as 7 years (2022–2029) in the 2026 verification report but 21 years (2022–2043) in the 2022 monitoring report; the PDD lifetime ERR of 6,831,045 tCO₂e may correspond to the longer period, making the pro-rata comparison ambiguous
• ⚠Functional newness ratio (FNRB) of 0.91 (national default, verification report 2024) versus 0.6734 (country-specific study, issuance document 2025) — a 35% gap that materially affects credit quantities
• ⚠Buffer pool percentage not stated in any available document, leaving permanence risk unquantified for a project with no reversal events reported
• ⚠13 contradictions across documents, many resolved only by recency, indicating inconsistent record-keeping across verification cycles

Credit Vintages