The EU’s Carbon Border Adjustment Mechanism is often discussed as climate policy. In the Western Balkans, it is also becoming electricity-market policy.
CBAM changes the economics of exporting electricity into the EU from countries without equivalent carbon pricing. For the Western Balkans, where coal remains a major part of the power mix in several countries, this is a major structural shock.
The first signs are already visible. The Energy Community Secretariat reported that, in the first quarter of 2026, commercially scheduled electricity exchanges between the EU and the Western Balkans fell by 25% across borders with EU member states. It also reported that day-ahead prices in the Contracting Parties were on average €30/MWh lower than in neighboring EU markets.
That is unusual. In a well-integrated market, lower prices on one side of a border would normally encourage exports to higher-price neighboring markets. If the Western Balkans are cheaper while exports fall, something else is interfering with normal trade signals. CBAM is one of the main candidates.
The mechanism makes carbon intensity a commercial variable. Electricity exported from coal-heavy systems into the EU becomes less competitive because importers must account for embedded emissions. Reuters reported that the EU’s CBAM applies from 1 January 2026 to imports including electricity, and that electricity from coal-reliant Western Balkan producers is likely to become more expensive for EU importers.
For utilities, this changes the value of export markets. A coal generator in Bosnia and Herzegovina, Serbia, Montenegro or North Macedonia may still be able to produce power, but its access to EU demand becomes less attractive if carbon costs reduce the netback price. For countries that historically relied on exports during favorable conditions, this can reduce revenue and liquidity.
For policymakers, CBAM creates a strategic choice. Western Balkan governments can treat it as an external penalty, or they can use it as a catalyst for domestic carbon pricing, renewable investment and power-sector reform. The second path is harder but more productive. If carbon revenues are collected domestically rather than paid at the EU border, they can potentially be used to fund transition, grid upgrades, social protection and coal-region diversification.
For renewable exporters, CBAM also raises technical questions. Clean power should theoretically benefit in a carbon-constrained market. But in practice, exporters need credible certification, guarantees of origin, metering, carbon-intensity accounting and market-coupling arrangements. Without those systems, even low-carbon electricity can face commercial friction.
This is why CBAM is not just a coal issue. It is also a market-integration issue. The Western Balkans need better tracking of electricity origin, stronger regulatory alignment, more transparent exchanges, and faster integration with EU electricity markets. Without these tools, the region risks lower export revenues, weaker investment signals and fragmented liquidity.
The impact will vary by country. Albania, with its hydro-dominated system, is less exposed to coal-carbon costs but highly exposed to hydrology and import/export swings. Bosnia and Herzegovina, Serbia, Montenegro, North Macedonia and Kosovo face larger coal-transition challenges. EU neighbors such as Croatia, Hungary, Romania, Bulgaria and Greece will feel the trade effects because they are connected to Western Balkan flows.
CBAM will not close coal plants overnight. Coal remains important for domestic security of supply in several Western Balkan systems. But it changes the economics around the edges, especially for exports, investment finance and long-term planning.
The direction is clear: carbon is becoming embedded in electricity trade. The Western Balkans can either adapt early or watch market access become more difficult.
CBAM is a border mechanism, but its impact will be domestic. It will influence dispatch, investment, export strategy, coal economics and the pace of market reform across the region.
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