The implementation of the European Union’s Carbon Border Adjustment Mechanism (CBAM) is significantly transforming the electricity trade landscape in Southeast Europe. As the largest electricity producer in the region outside the EU, Serbia is emerging as a pivotal transit and balancing hub between EU and non-EU power systems. This shift underscores Serbia’s crucial position within the regional energy framework, particularly as it navigates the complexities introduced by CBAM.
Serbia’s electricity generation capacity is robust, with annual production ranging between 35–38 TWh, surpassing that of its Western Balkan neighbors such as Croatia and Bosnia and Herzegovina. This substantial output positions Serbia not only as a leader in production but also as a critical player in regional energy dynamics. The interplay of carbon pricing under CBAM is expected to reorder trade flows and investment strategies across interconnected markets, thereby reshaping Serbia’s operational relevance.
Central to Serbia’s energy sector is Elektroprivreda Srbije, which predominantly relies on lignite-fired thermal power plants, complemented by significant hydropower resources along major river systems like the Danube and Morava. Currently, lignite constitutes approximately 65–70 percent of installed capacity and generation. However, this reliance on high-emission sources places Serbia among Europe’s most carbon-intensive electricity producers, with emissions intensities averaging 0.9–1.05 tCO₂/MWh.
Historically, Serbia has functioned as a regional electricity exporter, stabilizing prices for neighboring countries during periods of peak demand or hydrological shortages. The flow of electricity from Serbia into markets such as Bosnia and Herzegovina, Montenegro, and Hungary has been commonplace. However, the introduction of CBAM fundamentally alters this dynamic by imposing a carbon cost akin to that of the EU Emissions Trading System on Serbian electricity exports to EU markets.
Under CBAM, which anticipates carbon prices between €75–90 per tonne of CO₂ by 2025 and potentially €90–120 per tonne by 2030, Serbian lignite-based electricity could incur an additional cost of €70–110 per MWh. This structural repricing is likely to diminish the competitiveness of Serbian exports in EU markets, particularly during high-demand periods when low-carbon generation sets marginal prices.
The implications for Serbia are profound; its historical export routes to EU member states may see reduced utilization as carbon costs reshape pricing structures. As Serbian lignite-based exports become less viable, the country is transitioning from being primarily a low-cost exporter to a regional balancing hub that influences price formation across interconnected systems.
This transition also affects Serbia’s relationships with non-EU neighbors. Countries like Bosnia and Herzegovina and Montenegro are increasingly dependent on Serbian imports during times when their own generation becomes economically unfeasible due to carbon constraints. In some instances, Serbia could shift from being a net exporter to importing electricity from the EU while simultaneously exporting to non-EU markets, complicating transmission coordination and increasing congestion risks.
From a financial perspective, Serbia faces dual challenges under CBAM: diminished export revenues from lignite units and rising domestic wholesale prices influenced by regional carbon costs. Historically stable wholesale prices in Serbia—ranging from €50–70/MWh—are now exposed to fluctuations exceeding €80–100/MWh, particularly during dry years when thermal generation dominates.
The evolving market conditions also impact investment strategies within Serbia’s energy sector. While lignite assets have been economically viable under previous low-carbon cost regimes, their long-term profitability is now uncertain amidst potential alignment with EU carbon policies. The existing lignite fleet represents several gigawatts of capacity with operational lifespans extending into the 2040s; however, high carbon price scenarios could lead to reduced capacity factors and increased risk of stranded assets.
Conversely, CBAM presents opportunities for low-carbon investments in Serbia. While hydropower remains a foundational resource, its growth potential is constrained by environmental regulations. In contrast, wind and solar technologies are rapidly advancing; utility-scale solar projects are achieving levelized costs below €50/MWh, while favorable locations for onshore wind are nearing costs of €45–55/MWh. These developments position renewables favorably within investment frameworks.
The need for grid flexibility becomes increasingly critical as variable renewable penetration grows. Large hydropower reservoirs offer valuable short-term balancing capabilities; however, integrating battery storage solutions will be essential for optimizing Serbia’s hub position amid CBAM-induced market volatility.
The regulatory landscape remains a key factor in shaping Serbia’s future role in the energy market. Although not yet part of the EU ETS, discussions surrounding domestic carbon pricing mechanisms are gaining momentum. Implementing a local carbon tax or an emissions trading system could enable Serbia to internalize some carbon costs while generating revenue for grid enhancements and renewable subsidies.
As projections for 2030 indicate sustained high carbon prices and tighter emission caps within the EU framework, Serbia’s electricity system will find itself at a crossroads between decarbonization pressures and market integration challenges. If low-carbon generation can expand sufficiently to counterbalance declining lignite competitiveness, Serbia may maintain its status as a net exporter; otherwise, it risks becoming structurally reliant on imports during peak demand periods.
The implications of CBAM extend beyond mere adjustments in trade; they redefine Serbia’s systemic role within Southeast Europe’s energy landscape. The strategic decisions made over the next few years concerning carbon policy and infrastructure investments will be pivotal in determining whether Serbia can solidify its position as an essential power hub or face erosion of its market influence amid shifting regulatory environments.
