The 600 MW electricity connection with Italy places generation data, contractual allocation and cross-border transmission records at the centre of CBAM compliance for power exporters.
ANALYSIS · 29 OCTOBER 2026
PODGORICA/ROME, 29 OCTOBER 2026 — Electricity exports from Montenegro to Italy are entering a regulatory environment in which the physical delivery of power must be supported by a traceable chain of generation, commercial and transmission evidence. Under the EU’s definitive Carbon Border Adjustment Mechanism (CBAM) regime, the emissions treatment of imported electricity depends on more than the route through which it crosses the border.
Italy’s transmission system operator Terna identifies the Montenegro–Italy high-voltage direct current (HVDC) interconnector as a 445-kilometre connection with 600 MW of capacity. The infrastructure enables electricity exchanges between the two countries, but its technical specifications do not establish which generating installation produced the electricity attributed to an individual import.
This distinction is central to transactions involving renewable generation in Montenegro. A wind or hydropower producer may contract electricity to a supplier for delivery to an Italian customer, but the commercial chain can include multiple intermediaries, scheduling arrangements, transmission nominations and balancing operations. The Italian authorised CBAM declarant remains responsible for applying the legally appropriate emissions treatment to the imported electricity.
Generation records and contractual allocation
The starting point for an actual-emissions claim is the generating installation. Wind and hydropower operators can provide metered production, operational availability, curtailment information and records covering the relevant delivery periods. These records establish the generation profile, but must also be reconciled with the electricity quantities actually scheduled and imported into Italy.
Measurement systems need to be sufficiently controlled to support this process. Meter identification, timestamps, calibration procedures and data-retention arrangements should be established before transactions begin. Procedures must also address missing measurements, incorrect entries and subsequent corrections.
Contractual allocation represents a separate requirement. Electricity produced by one generator may enter a supplier’s portfolio before being resold to several customers. Agreements must establish whether particular production volumes are assigned to the export transaction and how contractual quantities are adjusted when forecast generation differs from actual output.
The involvement of intermediaries requires additional scrutiny. The applicable CBAM electricity provisions and amendments proposed by the European Commission may affect the treatment of different contractual structures. Consequently, a sequence of back-to-back power purchase agreements (PPAs) should not automatically be considered eligible for actual-emissions treatment.
Technical systems must reconcile with market settlement
The engineering infrastructure supporting electricity transactions is another essential component of the compliance process. A generating installation’s supervisory control and data acquisition (SCADA) system may capture operational information at second-level intervals, whereas electricity market settlement operates using approved, less frequent measurement periods.
The evidence submitted for CBAM purposes must establish which measurements are legally relevant and explain how differences between operational and settlement records are reconciled. It must also address revisions and electricity losses. Without a defined hierarchy between data sources, separate systems can produce inconsistent records for the same electricity delivery.
The transmission and market documentation provides another layer of evidence. Cross-border capacity rights, nominations, dispatch schedules, settled electricity volumes and congestion arrangements all contribute to determining whether the conditions for actual-emissions treatment have been satisfied.
Even a confirmed physical transfer through the 600 MW Montenegro–Italy interconnector does not independently demonstrate that the imported electricity originated from a particular renewable generating unit. Generation measurements must be compared with the relevant scheduled and imported quantities over the applicable periods.
Trading portfolios and replacement electricity
Electricity traders introduce additional variables into the provenance assessment. A merchant supplier may combine renewable and conventional electricity or purchase replacement power when contracted generation falls below expected levels.
Although these arrangements are established features of electricity market risk management, they can change the origin and emissions treatment of the electricity delivered to Italy. Contractual documentation therefore needs to address whether replacement electricity can retain the emissions treatment claimed for the original supply.
A bankable PPA should specify the conditions governing replacement energy, responsibility for additional CBAM costs and the records that the trader must make available. These provisions are particularly relevant where the commercial agreement identifies a renewable generating installation but actual deliveries depend on a broader electricity portfolio.
The geographical origin of a trader or the location of the interconnector cannot substitute for installation-level evidence. Montenegro also participates in wider regional electricity flows, meaning that a supplier established in the country may trade electricity that was not originally generated there. Electricity imported into Montenegro can subsequently be re-exported through market arrangements.
This makes the identification of the original generating installation particularly important when determining the emissions value associated with an Italian import.
Italian declarants face reconciliation responsibilities
The importing entity in Italy must connect the electricity volumes reported through customs and the CBAM registry with the applicable emissions value, calculation methodology and supporting evidence. Its internal compliance systems need to associate each import with the correct reporting period and contractual documentation.
This process can be complicated when customs departments, electricity settlement teams and CBAM compliance personnel use different terminology or time conventions. A formal reconciliation procedure is therefore necessary to connect the commercial delivery, market settlement and emissions records.
The supplier’s documentation obligations should be defined in advance, including the precise documents required, the responsible parties and delivery deadlines. A general contractual statement describing electricity as renewable does not, on its own, resolve the authorised declarant’s regulatory obligations.
The complete transaction record should incorporate a register of generating installations, eligible contractual agreements, metered production data, transmission capacity and scheduling records, reconciliation of deviations, importer identification, allocation controls and the eventual independent verification conclusion.
Data ownership, retention periods and audit rights should also be agreed between the parties. Guarantees of origin can remain part of the supporting documentation, but should not be treated as substitutes for the physical and contractual requirements applicable to CBAM electricity imports.
CBAM exposure enters PPA pricing and project finance
The emissions methodology selected for an electricity import has direct commercial implications. Where an applicable default emissions value must be used instead of an eligible actual value, the resulting CBAM exposure can affect the realised export price.
Power purchase agreements can allocate this additional financial burden between the seller and buyer or establish contractual reopening mechanisms in response to regulatory changes. The allocation of CBAM costs is particularly relevant to renewable project financing, where lenders assess the revenue available under long-term electricity offtake agreements.
A contracted electricity price does not necessarily represent the net revenue available to the project once CBAM liabilities are taken into account. Financial models therefore need to distinguish between the gross power price and the revenue remaining after applicable carbon-related costs.
The same distinction affects lenders’ assessment of infrastructure-enabled electricity exports. A financing institution may recognise the interconnector as an operational asset and confirm that the exporter has access to the Italian market, while still requiring evidence that the projected CBAM-related carbon premium is legally achievable.
The relevant due diligence involves several disciplines. Engineering reviews need to examine generation measurements and systems interfaces; legal reviews must assess contractual eligibility; and commercial assessments need to include downside scenarios based on applicable default emissions values. These requirements affect the same project economics even though they arise from different areas of due diligence.
Regulatory developments and regional electricity integration
The European Commission has proposed amendments to electricity emissions calculations intended to improve the practical operation of the CBAM framework. Separately, the Energy Community has warned that the mechanism should not weaken electricity market integration across the Western Balkans.
These developments could influence the commercial attractiveness of future export arrangements. However, proposed regulatory changes do not remove the obligation to meet the criteria currently applicable to electricity imports. Project developers and electricity suppliers must therefore assess existing transactions against the rules in force while retaining the flexibility to accommodate potential reforms.
For Montenegro, the Adriatic interconnector provides access to a major EU electricity market, but the regulatory requirements extend beyond transmission infrastructure. The commercial and technical arrangements supporting individual exports must also establish the origin, allocation and emissions characteristics of the electricity delivered.
The distinction between physical transmission and regulatory evidence is particularly important for the Italian declarant. While electricity can pass through the interconnector within seconds, establishing the emissions value that may legally be applied to an imported MWh requires a documented and verifiable chain of generation, contracts, market schedules and importer records.
