Advanced Refrigeration - ARS2022003

Audit Analysis

This ACR-registered advanced refrigeration project in Minnesota has a VVB-confirmed additionality assessment and a reasonable leakage treatment, but the verification process surfaced seven material findings, including two ERR calculation errors (ERAREF,j and ERAREF,k) that required corrective action. The monitoring period is recorded as a single day (the commissioning date), and several key MRV parameters (FNRB method, usage monitoring method, usage rates) are not stated in the available documents, limiting confidence in the 30,694-tonne lifetime estimate.

Project Description

Red Flags

• ⚠The monitoring report (2024-09-27) lists seven material findings, including the ERAREF,j value of 12.75% being inconsistent with the approved deviation of 11%, and ERAREF,k not being set equal to the baseline emission rate — both are direct ERR calculation errors that could have inflated the 30,694-tonne figure.
• ⚠The monitoring period is recorded as a single day (2022-06-14 to 2022-06-14), which is the project commissioning date rather than a meaningful monitoring window, making it impossible to assess whether the system is performing as designed over time.
• ⚠The validation report (2024-09-30) does not address leakage, while the monitoring report (2024-09-27) states it is deemed negligible — an inconsistency between the two documents on a key credit-quantification parameter.

Credit Vintages Exhausted