A green power purchase agreement or guarantee of origin does not, on its own, establish eligibility to use actual emissions for electricity imported into the EU.
ANALYSIS · 5 NOVEMBER 2026
BRUSSELS, 5 NOVEMBER 2026 — For renewable electricity exporters outside the European Union, the central CBAM challenge is no longer simply demonstrating that a generating installation produces renewable power. The decisive question is whether electricity imported into the EU meets the regulatory conditions for using actual emissions rather than the applicable default values. Establishing eligibility requires evidence covering the generating installation, contractual arrangements and physical electricity transactions. A renewable-energy label alone cannot satisfy this legal test.
A power purchase agreement (PPA) establishes a commercial relationship between a generator and a buyer, but it does not necessarily demonstrate the physical and temporal connection required under the CBAM electricity methodology. Electricity may pass through several market intermediaries, while a buyer’s portfolio can include generation from different technologies and countries. Where an EU importer seeks to use the emissions profile of a particular generating installation, it must demonstrate that the regulatory framework permits this attribution and that the supporting transaction records meet all applicable conditions.
The existing framework sets demanding requirements concerning the electricity source, contractual arrangements, capacity nominations and cross-border circumstances. It also establishes technical conditions for using actual emissions. The European Commission has proposed changes intended to make the electricity provisions more workable, including possible adjustments to congestion-related requirements and arrangements involving intermediaries. However, until amendments are formally adopted, exporters and commercial counterparties must distinguish proposed flexibility from the requirements currently in force.
Hourly matching presents one of the main operational challenges. Wind and solar generation fluctuate throughout the day, meaning that annual renewable-energy certificate balances cannot automatically prove that a particular electricity volume was generated and scheduled across the relevant border during a specified hour. Exporters need sufficiently granular metering data, a continuous record of relevant market or transmission nominations and a documented approach to partial deliveries, curtailment and balancing deviations.
A practical control mechanism is to reconcile each individual megawatt-hour across the relevant records. The process should connect the generation interval with the corresponding meter output, production contract, trading schedule and the importing declarant’s documentation. Any discrepancies should be identified and explained. Applying this reconciliation to selected high-risk periods can expose recurring problems involving time zones, market-day boundaries, meter settlement corrections and the allocation of generation among different customers.
Allocation controls must also prevent the same generation volume from being attributed to multiple importers. Renewable generators may sell electricity to several buyers while participating in balancing arrangements and maintaining broader trading portfolios. Each MWh used to support an actual-emissions claim therefore needs a controlled allocation supported by identifiable records. Where the generation source cannot be established or the applicable regulatory conditions are not fulfilled, the importer must follow the relevant legal treatment rather than rely on an expansive interpretation of the PPA.
Responsibility for maintaining the necessary physical and commercial records is distributed across several parties. Generating installations hold meter readings and operational logs. Suppliers and traders may control commercial agreements and capacity bookings, while transmission and market operators maintain records of schedules, metered transfers and subsequent adjustments. The EU declarant needs access to the resulting evidence, but may not have direct control over every information system involved. Without appropriate contractual data-access rights, an otherwise successful electricity transaction may be difficult to substantiate for CBAM purposes.
Guarantees of origin (GOs) can provide useful information about the renewable attributes of electricity. However, they do not automatically satisfy the separate actual-emissions eligibility requirements under CBAM. A GO may be issued, transferred and cancelled within an electricity-attribute tracking system, whereas the carbon-border mechanism applies its own legal criteria. Buyers should retain relevant guarantee-of-origin documentation but should not treat it as a replacement for physical scheduling records or independent verification.
The financial implications can be significant. A wind farm with low operational emissions may appear to have a clear advantage over electricity assessed using a fossil-intensive country default. That advantage can be reflected in CBAM treatment only to the extent that the applicable methodology recognises the installation’s actual emissions and the importer can provide the required evidence. PPAs and related commercial agreements should therefore specify who bears additional carbon-related costs if documentation proves insufficient, schedules fail to qualify or regulatory requirements change after the contract has been signed.
Technical preparation should begin before the first export delivery. An installation evidence register can identify the generating asset, meter ownership, calibration arrangements, time synchronisation, commercial contracts, production forecasts, scheduling records and operational deviations. A separate documentation package for the importer should reconcile exported electricity volumes with the relevant customs and CBAM certificate calculations. Independent reviewers can assess whether the records are complete and consistent, while formal verification remains the responsibility of the appropriately accredited verification body.
Renewable electricity exporters are effectively supplying two distinct products. The first is electricity, which must be physically delivered and commercially settled through the market. The second is an emissions claim, which must independently satisfy the applicable regulatory requirements. That claim can create commercial value or reduce CBAM exposure only when it is legally eligible and supported by adequate evidence. Exporters best positioned to serve EU customers will be those that establish reliable physical and contractual documentation systems before promising CBAM-related savings.
