Electricity exporters seeking to declare actual emissions under the EU Carbon Border Adjustment Mechanism (CBAM) must be able to connect power generation with the specific delivery periods covered by a qualifying transaction. Annual production figures or general claims about low-carbon generation are not sufficient to establish that link.
The European Commission’s August electricity guidance sets out the operational evidence needed to demonstrate compliance with existing CBAM requirements. It reinforces the need to align nominated cross-border capacity with installation output over periods of no more than one hour, rather than establishing a new obligation solely through guidance.
The evidence must connect the relevant installation, purchase agreement, electricity volumes and cross-border capacity nominations recorded by the responsible transmission system operators. Accredited verifiers are also expected to receive monthly interim information demonstrating compliance with the applicable conditions.
Delivery-hour records underpin eligibility
Annual totals can conceal discrepancies between generation and physical electricity deliveries. A power plant may report annual output matching a buyer’s annual purchases while the quantities supplied during individual delivery periods do not correspond.
That distinction is central to an hourly eligibility assessment. A year-end comparison of aggregate electricity volumes cannot, on its own, demonstrate that the power associated with an actual-emissions claim was generated and delivered during the qualifying hours.
For exporters, the relevant records therefore need to establish a consistent relationship between the electricity produced, the contractual transaction and the nominated cross-border capacity for the applicable periods.
Verification extends beyond emissions calculations
The CBAM verification framework requires an independent assessment of the monitoring methodology, calculations and supporting documentation. Accredited verification is separate from the preparatory work undertaken by advisers to organise records or identify missing information.
Documentation reviews can begin during the reporting year, while the completed annual verification conclusion depends on the availability of the relevant information for the full reporting period.
Resolving inconsistencies during the year can reduce the scope of later reconciliation work. Issues such as time-zone differences, amended meter readings and discrepancies in delivery volumes can otherwise accumulate before the annual verification process.
Current evidence requirements remain applicable
Preparatory support from advisers does not constitute the statutory verification opinion required under CBAM. Similarly, exporters cannot rely on proposed changes to electricity rules as a basis for omitting evidence required under the rules currently in force.
The operational record supporting an actual-emissions claim must allow the electricity and associated emissions to be checked against the qualifying transaction. For electricity exporters, consistency between generation records, delivery information, contractual documentation and transmission-system nominations is therefore central to the verification process.
