Efficient and Clean Cooking for households in Nigeria

Audit Analysis

A Gold Standard cookstove avoidance project in Nigeria with a VVB-confirmed investment additionality test, no reversal events, and a 5% quantified leakage deduction. However, significant contradictions across documents in ERR figures, fNRB values, and crediting periods, combined with 13 corrective actions and 14 clarification items, raise material data-reliability concerns that temper confidence in the claimed emission reductions.

Project Description

Red Flags

• ⚠ERR figures differ by a factor of ~2.8× across documents (358,068 in the 2025 validation report vs 1,008,534 in the 2024 monitoring report), and the two appear to refer to different crediting periods, making a clean pro-rata comparison impossible
• ⚠fNRB value changed from 0.8497 (verification report, Jan 2025) to 0.64 (validation report, Aug 2025) — a 25% reduction that materially affects the emission-reduction calculation
• ⚠13 corrective actions and 14 clarification items remain open, including unresolved questions on double-counting prevention, carbon ownership transfer, and stove-lifetime validation
• ⚠CORSIA eligibility and CCP status are both not stated, leaving dual-channel risk unassessed

Credit Vintages