Charm Bio-oil Geologic Storage

Audit Analysis

Charm's bio-oil geologic storage project has VVB-confirmed additionality and no reported reversal events, but the absence of a stated buffer pool, leakage treatment, and baseline method—combined with 14 material findings and 11 corrective actions—indicates a project still maturing operationally. The exact match between claimed and verified removals (764.14 tCO₂e) is reassuring against over-claiming, yet the contradiction with an earlier interim figure of 43.47 tCO₂e and the short one-month monitoring window limit confidence in the MRV record.

Project Description

Red Flags

• ⚠No buffer pool percentage stated in any available document for a carbon-removal project with a 5-year crediting period, leaving permanence risk unquantified
• ⚠14 material findings in the verification report, including a bio-oil release at the rail spur with emissions deferred to the next reporting period, and reliance on scale tickets rather than flow meters for injection mass measurement
• ⚠Contradiction in verified ERR: 764.14 tCO₂e (final report, 2026-03-18) versus 43.47 tCO₂e (interim report, 2026-02-23), a 17.6× discrepancy that is not explained in the extracted record
• ⚠Post-closure monitoring plan for the Vaulted Deep storage site has not yet been provided, a critical gap for long-term permanence assurance
• ⚠Leakage deduction and justification are both absent from the extracted record, with no stated treatment for potential displacement or operational emissions

Credit Vintages

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