BRUSSELS/PODGORICA, Oct. 22, 2026 – Renewable electricity producers outside the European Union are seeking to convert low-carbon generation into higher-value exports, but the EU’s Carbon Border Adjustment Mechanism (CBAM) requires evidence of contractual origin, physical delivery and hourly matching that goes beyond conventional annual power purchase agreements (PPAs) or renewable electricity certificates.
Under the current electricity rules in Annex IV, importers can claim actual embedded emissions only when a set of conditions is met simultaneously. A qualifying PPA must connect the authorised EU declarant with a non-EU electricity producer. The generating installation must be directly connected to the EU grid or meet the prescribed network-congestion condition, and its emissions must not exceed 550 grammes of fossil CO₂ per kWh. Firmly nominated interconnector capacity and electricity generation must correspond over periods of no longer than one hour. An accredited verifier must confirm the supporting evidence, including interim reporting.
Renewable certificates cannot replace physical delivery evidence
The commercial distinction is between holding renewable electricity attributes and demonstrating that a specific volume of electricity qualifies for actual-emissions treatment under CBAM. Guarantees of origin can support corporate procurement and emissions-disclosure claims, but they do not independently establish hourly physical delivery, a valid cross-border contractual chain or compliance with the mechanism’s technical requirements.
A credible evidence package must connect the generating plant, the contractual arrangements and the transmission system. It should identify the producer and installation, document the site and installed capacity, and include SCADA records and calibrated export-metering data. Production must then be reconciled with the physical PPA, electricity sold, nominations accepted by the relevant transmission system operators (TSOs), allocated transmission capacity and the EU importer or authorised declarant.
Where electricity crosses multiple networks, the records must demonstrate the relevant transmission path and timing required by the applicable rules.
Intermediaries remain a regulatory challenge
Intermediary trading arrangements present a particular difficulty. In liberalised electricity markets, independent power producers may sell electricity to utilities or traders rather than contract directly with the final EU importer. The current wording imposes restrictive conditions on these arrangements.
The European Commission’s proposal COM(2025)989, presented in December 2025, would recognise qualifying intermediary arrangements where the complete contractual relationship between the producer and importer can be verified. The proposal also addresses the congestion requirement and implicit capacity allocation, while retaining the close time relationship between electricity generation and cross-border nominations. These changes have not been enacted, so exporters must assess eligibility under the rules currently in force.
The Commission’s assessment underpinning the proposal found that only about 3% of electricity declarations during the CBAM transitional period used actual values. It warned that this proportion could overstate eligibility under the definitive regime because supporting evidence had not been assessed to the same standard. Consequently, some low-emission electricity exporters may still face default values under existing arrangements, irrespective of their generation technology.
Export PPAs must allocate verification responsibilities
An export PPA needs to address verification and recordkeeping alongside electricity generation and delivery. It should specify who maintains source records, nominates capacity, purchases transmission rights, coordinates verifier access and assumes responsibility when an hour cannot be substantiated.
Contracts should also define how the parties handle transmission losses, curtailment, schedule revisions and under-delivery. An annual allocation of generic renewable certificates cannot correct a mismatch between electricity produced during a particular hour and the volume nominated for import.
For an illustrative 100 MW wind project, four hours of operation at an average output of 60 MW would produce 240 MWh. If the exporter claims only 200 MWh as qualifying EU delivery, it must substantiate the specific contracted and scheduled volume under the applicable rules. The remaining electricity cannot simply be reassigned to another buyer through duplicate allocation. Actual project records, rather than the illustrative calculation, determine eligibility.
Western Balkan exporters need to secure the entire delivery chain
Potential export routes from Serbia, Montenegro, Bosnia and Herzegovina, and North Macedonia connect renewable generation with interconnected EU markets. However, physical transmission constraints and commercial arrangements differ between projects and markets.
A project may have a bankable domestic PPA while lacking the transmission-capacity rights or operational nomination arrangements required to support a qualifying CBAM electricity claim. Developers therefore need to resolve these gaps before treating reduced CBAM exposure as a dependable source of additional revenue.
The contractual structure must also establish how the parties will manage individual hours that fail to meet the qualification requirements. Options include crediting the carbon-price advantage only after the relevant records are accepted, valuing disputed hours according to the legally applicable default, or requiring the producer to supply corrective evidence within a specified period.
These provisions distinguish qualifying electricity volumes from the total amount supplied under a long-term PPA and make potential losses measurable for lenders. Without such safeguards, financing models risk relying on additional carbon-related revenue that the available evidence cannot guarantee.
Metering and timestamp consistency are central to verification
Verifier readiness begins well before the first annual filing. Operators should establish consistent technical definitions for meters, time zones, daylight-saving treatment, net plant output, auxiliary consumption, transmission losses and final accepted nominations.
A missing hour or inconsistent timestamp can create an apparently minor spreadsheet discrepancy that becomes material when aggregated across months of electricity exports. Version-controlled SCADA and metering exports, supported by TSO confirmations and logs of contractual or scheduling amendments, allow verifiers to reconstruct the delivery chain.
For lenders, the most valuable evidence is a reproducible hourly record connecting the revenue meter to the international electricity schedule and the authorised declarant’s documentation. Until the European Commission changes the applicable requirements, the value of low-emission electricity at the EU border will depend on documentary precision at least as much as on the renewable resource itself.
