Serbia’s electricity exporters face a potential carbon cost approaching €86 per megawatt-hour under the European Union’s Carbon Border Adjustment Mechanism (CBAM). The change affects how export competitiveness is assessed, with carbon classification, contractual delivery terms and independently verified emissions becoming additional commercial inputs alongside wholesale prices, cross-border transmission capacity and generation costs.
Serbia’s national CBAM electricity default factor is set at 1.041 tonnes of CO₂ per MWh, reflecting the country’s carbon-intensive thermal generation system. Using the EU’s third-quarter 2026 CBAM certificate price of €82.32/tCO₂, the indicative gross carbon liability is calculated at €85.70/MWh for electricity imported into the EU under that default factor.
The figure reflects exposure based on the third-quarter certificate price, rather than a charge for October deliveries, which will be calculated using the fourth-quarter price. The liability may also be reduced where eligible carbon costs have already been paid in the country of origin.
CBAM does not provide free-allocation adjustment for imported electricity, unlike treatment for steel and aluminium. This makes electricity’s carbon exposure particularly significant during the initial implementation period.
SEEPEX-HUPX price gap and default-emissions export economics
The immediate market impact is reflected in trading between Serbia’s SEEPEX exchange and Hungary’s HUPX market. For October 9 delivery, SEEPEX day-ahead prices increased to €239.96/MWh, while Hungary’s HUPX day-ahead prices were €269.43/MWh.
The resulting €29.47/MWh price difference was substantially below the indicative Serbian CBAM charge. Under national default emissions, a conventional export from Serbia to Hungary would therefore struggle to produce a positive trading margin at those average prices, even before considering transmission capacity, balancing and transaction costs.
Different outcomes can arise from hourly price differences, contractual positions and verified actual emissions. However, the regional implication described is that higher Hungarian wholesale prices do not automatically translate into profitable export opportunities for Serbian electricity once CBAM exposure is included.
Regional trading pattern shifts and scheduled exports to Hungary
The Energy Community Secretariat has documented changes in regional trading patterns after CBAM was introduced. Commercial electricity exchanges between Western Balkan markets and neighbouring EU countries declined in early 2026, although hydrological conditions, generation availability and changing demand also affected flows.
Serbia remains an active northern corridor for power trade. Scheduled electricity exports towards Hungary increased during the second quarter, indicating that cross-border trading continues while CBAM alters the economics and potential destinations of electricity flows.
Implications for EPS and independent renewable producers
For Elektroprivreda Srbije (EPS), CBAM implications extend beyond individual export transactions. Serbia’s reliance on lignite-fired generation means electricity sold under the national default methodology faces high carbon costs, affecting export attractiveness into EU markets and increasing the relevance of domestic sales, generation flexibility and low-carbon investment.
For independent producers of wind or solar, CBAM creates a different compliance requirement. Even where operational emissions are minimal, an EU customer cannot automatically claim those emissions solely because the electricity originates from a renewable installation.
Treatment based on actual emissions requires a qualifying physical power purchase agreement involving the EU declarant and producer. It also requires evidence of a compliant transmission route, cross-border capacity nominations aligned with generation within hourly intervals, and independent verification, with the generating installation meeting the applicable emissions threshold.
Guarantees of Origin alone are not sufficient to establish eligibility for actual-emissions treatment. As a result, two Serbian renewable projects with similar technology, generation costs and expected production could receive different export values depending on whether their contractual arrangements and metering support CBAM-compliant deliveries.
Financing risks for renewables and reassessment needs for existing loans
Banks financing wind, solar and battery storage projects face new considerations linked to CBAM requirements. Traditional project-finance assessments focus on construction costs, production forecasts, wholesale power prices, balancing exposure and buyer creditworthiness.
CBAM adds risks tied to verified emissions, contractual eligibility, export-market access and the durability of projected cross-border revenues. Banks are therefore expected to evaluate renewable projects under separate revenue scenarios covering domestic sales, conventional EU exports using applicable defaults, and qualifying exports supported by verified actual emissions.
Existing loans may also require reassessment when debt-service projections depend on premiums available in Hungary or other EU markets for electricity exports.
Industrial electricity costs under CBAM methodology differences
For Serbia’s steel, aluminium, cement and fertiliser manufacturers, electricity adds another layer of exposure through higher input costs. The source describes that CBAM does not currently treat purchased-electricity emissions identically across industrial sectors.
Indirect electricity emissions are included in CBAM calculations for cement and fertilisers. For iron, steel and aluminium obligations described as current practice focus generally on direct embedded emissions rather than purchased-electricity emissions in the same way.
The procurement of renewable electricity can therefore improve manufacturing competitiveness and customer acceptance without necessarily reducing immediate CBAM certificate liability for every Serbian industrial exporter.
Methodology review by the European Commission
The European Commission is considering amendments to electricity CBAM methodology that could improve recognition of lower-carbon generation. Investment decisions cannot assume those changes will be adopted in their proposed form.
For Serbia’s exporters, the challenge described is connecting generation data, trading arrangements and verifiable carbon information into a commercially credible export product. Capturing European market premiums depends on demonstrating which power plant produced the electricity, when it was generated, how it crossed the border and which EU importer is entitled to claim its emissions.
Without that evidence, competitively priced Serbian renewable electricity risks being valued at the EU border as if it carried the carbon intensity of Serbia’s wider national power system.