Balkan Power Exports to EU Fall 15% in Q2 as CBAM Costs Squeeze Cross-Border Scheduling
The Energy Community's Q2 study shows CBAM compliance costs and regulatory uncertainty are suppressing Balkan-EU power flows even as regional price spreads narrow.
Commercially scheduled electricity flows from non-EU Western Balkan states to EU neighbors fell to 7.49 TWh in Q2 2026, the Energy Community said on Wednesday (2026-07-29), a 15% decline as higher CBAM compliance costs and regulatory uncertainty squeezed cross-border scheduling even as regional price spreads narrowed. The Vienna-based body, which represents EU aspirant countries, published the finding in a study examining how the carbon border adjustment mechanism is reshaping Balkan grid economics.3,4
The mechanism has compressed spreads more sharply than regional participants anticipated. A trader told Montel on Friday (2026-05-15) that the power price spread between the Western Balkans and Hungary, the regional benchmark market, had come in far below expectations after CBAM was introduced earlier this year. Where spreads did persist, compliance costs and administrative burden have been sufficient to suppress commercially scheduled flows regardless.1,3
This is the second consecutive quarter of double-digit contraction. An Energy Community study released on Wednesday (2026-04-29) put the Q1 decline at around 25%, with commercially scheduled exports into the EU falling sharply in the first months after CBAM took effect. Two successive quarters of falls of that magnitude, at a point when the framework is still being absorbed, suggest participants are pulling back from cross-border scheduling in ways that go beyond short-term adaptation costs.2
The Western Balkans' generation mix makes the mechanism's effects especially pronounced. Coal dominates the power stack in Serbia, Bosnia-Herzegovina and other non-EU Energy Community members, meaning embedded carbon costs subject to CBAM are structurally high. When the gross margin from exporting is already thin due to compressed spreads, the additional overhead of CBAM verification, reporting and carbon certificate procurement can eliminate the economic case for scheduling cross-border flows entirely.3
The Wednesday (2026-07-29) study also found that CBAM is raising grid costs, Montel reported. The mechanism does not operate only through a direct per-MWh carbon charge; it imposes operational and administrative requirements on system operators managing cross-border flows subject to compliance. Those costs filter back through the chain, reducing net returns to generators and adding to the pressure already created by narrower spreads.4,3
The Q1-to-Q2 moderation offers one partial signal. The 25% Q1 fall eased to 15% in Q2, which could indicate some initial disruption is being absorbed as market participants build CBAM compliance capabilities. But the absolute Q2 volume of 7.49 TWh remains well below the pre-CBAM baseline implied by either quarter's decline, and the Energy Community's study explicitly cites ongoing regulatory uncertainty rather than resolved implementation friction as a driver.3,2
For Balkan generators running coal capacity, the commercial logic is shifting. Investing in compliance infrastructure to maintain EU market access is a real cost, and the spread outlook needed to justify it looks less attractive than before CBAM arrived. Redirecting surplus capacity domestically or toward bilateral arrangements with non-EU buyers sidesteps the mechanism entirely. Two quarters of falling export volumes suggest that reallocation is already under way.3
The Energy Community, as an institution advocating for regional EU integration, has a direct interest in quantifying the trade-off. Its data now show two consecutive quarters moving in the same direction, and the study explicitly flags grid cost implications beyond the direct carbon-pricing channel. How EU counterparts interpret the volume data, whether as a signal the mechanism needs adjustment in the power sector or as the expected consequence of internalising carbon costs, will shape the policy trajectory for the second half of the year.3,4
Q3 volume data will be the next concrete test. A third straight quarterly contraction would close off the argument that the Q1 and Q2 falls are temporary adaptation costs rather than a durable repricing of Balkan-EU power trade economics. A recovery would suggest compliance infrastructure is being built fast enough to offset spread compression and that scheduled cross-border flows can stabilise at a lower but sustainable level.3