EU mirror statistics recorded 9.84 TWh of gross electricity imports reported from Serbia in 2025, highlighting the difficulty Western Balkan exporters face in meeting EU carbon-border requirements. Tracing the emissions and generating origin of a specific megawatt-hour can be challenging when electricity crosses several control areas before reaching an EU buyer.
Hungary, Romania, Bulgaria and Croatia were the leading destinations for the reported imports. Border figures for Serbia may include domestic generation, bilateral purchases, transit flows and re-exports, and therefore do not establish where the electricity was generated.
Power from Montenegro, Bosnia and Herzegovina, North Macedonia or Albania can enter wholesale positions and cross-border schedules involving Serbia before delivery to an EU market. Physical flows, contractual sellers and customs origin are separate concepts, so attributing all electricity imported from Serbia to Serbian generating installations would misrepresent the region’s carbon burden.
Evidence needed for carbon claims
In a June 2026 assessment, Serbia’s Ministry of Finance estimated electricity-related exposure at around 21.8 million euros for 2026, based on its original baseline. The ministry cautioned that regulatory uncertainty may already be affecting cross-border power trading, and said that assuming 2025 volumes remain unchanged is a weak basis for estimating future liabilities.
The ministry considered possible rule changes that could reduce the modeled impact on electricity, but said these had not been adopted when its assessment was prepared. The effect of compliance on trading volumes will also depend on market conditions.
Electricity is not covered by the EU Carbon Border Adjustment Mechanism (CBAM) exemption for physical goods below 50 tonnes; it is fully exposed from the start of the definitive regime, subject to detailed accounting rules and specific exemptions. The EU allows verified actual-emissions approaches only under demanding conditions, including direct electricity sourcing, contractual and physical matching, and network access.
A portfolio combining hydro, wind, solar, coal and imported electricity may require a reconciled evidence chain to support an installation-specific emissions claim. Renewable guarantees of origin have a separate market function and do not automatically replace the evidence required under CBAM.
Trading costs and export prospects
For a trader buying lower-cost electricity outside the EU for sale into Hungary or Romania, exchange prices are only one element of the calculation. Border congestion, transmission costs, balancing obligations, carbon certificates and the credit required to hold positions can erase otherwise positive trading spreads, particularly when EU solar or wind generation pushes domestic prices lower.
Regional renewable developers can build export opportunities around verifiable evidence rather than a generic green claim. Installation-level metering, clear asset ownership, power-purchase contracts, hourly schedules, identification of the EU importer and controlled allocation of environmental attributes can help reduce disputes.
The same records may assist bank lenders assessing long-term contracted revenue, although recognition of actual emissions requires case-specific confirmation of the legal route. The central regional policy question is whether a particular megawatt-hour can be lawfully linked to a specific installation and importing declarant, rather than relying only on a country’s average carbon intensity.
Elevated by CBAM by Clarion Engineer