GS1247 VPA 57 Improved Kitchen Regimes: Kayonza District Borehole Project, Rwanda

Audit Analysis

This Gold Standard borehole project under a cookstove PoA has a verified additionality assessment and no reversal events, but is undermined by a fundamental methodology-project mismatch (cookstove methodology applied to water infrastructure), twelve cross-document contradictions in key parameters, a 4× discrepancy in claimed emission reductions between monitoring reports, and over 30 outstanding corrective actions. The absence of verified ERR figures and multiple null fields in the extracted record further limit confidence in the project's quantified claims.

Project Description

Red Flags

• ⚠Methodology TPDDTEC v.4.0 (cookstove) is applied to a borehole/water project; corrective actions explicitly request justification of the methodology for water treatment technologies, indicating a fundamental fit issue
• ⚠Claimed ERR of 38,968 tCO₂e (2021 monitoring report) versus 159,041 tCO₂e (2020 monitoring report) — a 4× discrepancy that is not explained by period length differences
• ⚠Over 30 corrective actions remain open, including requests for baseline survey data, kitchen performance test results, NRB reports, and evidence of operational lifetime — suggesting the verification record is materially incomplete
• ⚠Leakage treatment is contradictory: the 2021 monitoring report applies a 0% deduction with a 'deemed negligible' justification, while the 2023 PDD applies a 5% quantified deduction
• ⚠FNRB value differs between documents: 0.98 (national default, 2021 monitoring report) versus 0.85 (local field, 2023 PDD), with the method also changing between national_default and local_field

Credit Vintages