Bulgarian electricity generation increased 11.33% year on year to 32.61 TWh between Jan. 1 and Sept. 20, with the rise supported by stronger renewable output. Domestic electricity consumption climbed 8.19% to 29.48 TWh over the same period. The resulting balance left Bulgaria with net exports of approximately 3.13 TWh.
Renewables expand while baseload output falls
Generation from baseload plants, including coal and nuclear facilities, declined 3.6% to 20.13 TWh. The overall increase in total output was instead driven by renewable generation and other sources outside the traditional baseload fleet. Renewable production therefore accounted for a larger share of supply during the period.
Renewable growth across transmission and distribution networks
Renewable output connected to the transmission network rose 25.57% to 3.86 TWh. Renewable production in distribution networks increased 9.53% to 3.41 TWh. Together, the figures show growth in renewables feeding both parts of the grid.
Implications for export availability 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. With renewable generation expanding as coal and nuclear output declines, export availability is linked more closely to weather conditions and hourly renewable production patterns. This change also increases requirements for storage, flexible generation, and grid investment.
