Bulgarian electricity generation increased 11.33% year on year to 32.61 TWh between Jan. 1 and Sept. 20, with growth supported by higher renewable output. Domestic consumption rose 8.19% to 29.48 TWh over the same period. The figures left Bulgaria with net exports of approximately 3.13 TWh.
Renewables drive growth while baseload output falls
Generation from baseload plants, including coal and nuclear facilities, declined 3.6% to 20.13 TWh. The overall increase was instead supported by renewable generation and other sources outside the traditional baseload fleet. Renewable production therefore accounted for a larger share of total output during the period.
Renewable output rises across transmission and distribution networks
Renewable generation connected to the transmission network increased 25.57% to 3.86 TWh. Renewable production in distribution networks also climbed, rising 9.53% to 3.41 TWh. Together, these changes reflect broader expansion of renewables across Bulgaria’s grid levels.
Implications for regional exports and system flexibility
The data reinforce Bulgaria’s role as a net electricity exporter in southeastern Europe while indicating a shift in the generation mix supporting that surplus. Renewable output is expanding as coal and nuclear generation declines. This transition increases reliance on storage, flexible generation and grid investment to manage variability.
Export availability is expected to depend more on weather conditions and hourly renewable production rather than the stable baseload profile that historically underpinned Bulgaria’s regional market role.
