Bosnia and Herzegovina faces the highest electricity default-factor exposure among the Western Balkan markets covered, at 1.148 tCO₂/MWh.
At the EU’s Q3 CBAM certificate price of €82.32/tCO₂, the factor corresponds to an indicative carbon cost of approximately €94.50/MWh for electricity exports assessed using the national default.
That burden can exceed conventional cross-border electricity price spreads several times over, potentially making default-based exports into EU markets commercially difficult unless neighbouring EU electricity prices reach exceptionally high levels.
Coal-heavy system creates a high default exposure
The level of the default factor reflects Bosnia and Herzegovina’s coal-heavy generation structure.
For individual renewable generators, however, the national factor can produce a very different commercial outcome from the emissions profile of the plant itself. Hydro, wind and solar facilities may have very low plant-level emissions, but an EU importer can remain exposed to the national default unless the electricity meets the conditions for using actual emissions.
This creates a potentially significant commercial premium for renewable generators that can establish a complete evidence and verification chain linking electricity production to the EU declarant.
Actual emissions could reshape export economics
The distinction is particularly relevant for Bosnia and Herzegovina, where hydropower already represents a substantial part of generation and new wind and solar projects are developing.
For these producers, the difference between the country’s default factor and demonstrable plant-specific emissions could become an important consideration in future power-purchase agreements.
The ability to document the characteristics of individual renewable generation could therefore become a significant factor in determining the CBAM cost attached to electricity exported from Bosnia and Herzegovina into the EU.
