Sylva Fertilis, Argentan, FR

Audit Analysis

Sylva Fertilis is a French biochar removal project under the Puro standard with VVB-confirmed additionality and no reported reversal events, but it is undermined by an extremely low 0.5% buffer pool, a project-specific baseline with no recorded reassessment, and a complete absence of leakage treatment. Multiple contradictions across documents—particularly the 2,470 vs 142.05 tCO₂e verified-ERR discrepancy and the 1,000-year vs 100-year permanence claim—raise material data-reliability and over-crediting concerns that temper an otherwise reasonably documented project.

Project Description

Red Flags

• ⚠Buffer pool of only 0.5% is far below the 20–30% typically expected for removal credits with a 100-year permanence claim, leaving minimal protection against reversal.
• ⚠The issuance document (Oct 2024) reports a verified ERR of 2,470 tCO₂e while the 2026 verification report reports 142.05 tCO₂e for the monitoring period; the 17× discrepancy is unexplained and raises over-crediting risk.
• ⚠The original issuance document (Nov 2021) claims a 1,000-year permanence horizon, whereas the 2026 verification report states 100 years; the earlier, more aggressive claim creates greenwashing exposure.
• ⚠Leakage is explicitly not addressed and no deduction percentage is stated, despite the project type (biochar from biomass feedstock) carrying plausible leakage pathways (feedstock sourcing, soil erosion, substitution).
• ⚠Three material findings in the 2026 verification report—including a stock discrepancy between monitoring periods and unclear Eurofins analytical values—were closed without corrective actions, suggesting residual data-quality uncertainty.

Credit Vintages Exhausted