site.btaBulgaria's Electricity Generation Grows by 20.2% in 2025 Y/Y

Bulgaria's electricity production has increased by 20.2% to 10,239,425 megawatt hours (MWh), according to operational data from the Electricity System Operator (ESO) for the period January 1- March 16, 2025, compared to the same period in 2024. At the same time, consumption also increased, albeit more moderately, by 8.77% to 9,707,797 MWh.

The balance of exports and imports has changed significantly, from a negative value in 2024 (minus 406,530 MWh) to a positive balance of 531,628 MWh in 2025.

Base load power plants have increased their output by 21.25% to 8,470,358 MWh, according to ESO data.

Renewable energy sources (RES) in the transmission grid grew by 31.36%, with the largest increase recorded in photovoltaic (PV) plants at 60.47%. However, wind power plants (WPPs) and biomass recorded a decline of 9.78% and 20.12%, respectively.

A similar trend was observed for RES in the distribution grid: an overall increase of 31.55%, with PV plants again registering the largest jump at 65.3%. In contrast, PV plants reduced their output by 14.36%, while biomass saw an increase of 13.23%.

Year to date, compared to the same period in 2024, hydroelectric power (HPP) was the only segment with an overall decline - it generated 472,160 MWh, down 13.56% per cent year-on-year, ESO data also showed.