Electricity production is increasing. The share of consumption is also

Electricity production is increasing. The share of consumption is also positive. The balance (export-import) of electricity remains high. The share of baseload power plants is in the plus. The participation of renewable energy sources (RES) in the transmission and distribution networks is growing. The share of hydroelectric power plants (HPP) is still in the minus. For the first time, the share of battery energy storage systems (SSEB)/discharge is also reported, which is very high. This is clear from the operational data prepared by the Electricity System Operator (ESO) for the period from 01.01.2025 to 17.08.2025 compared to the same period last year 2024.

Electricity production for the period from the beginning of January to the seventeenth of August this year is in the volume of 25,810,187 MWh. On an annual basis, this is an increase of 9.20% (for the reporting period until August 10 or the previous reporting week – 9.09%). A year earlier, electricity production amounted to 23,635,508 MWh.

Electricity consumption for the specified comparable period of the current year 2025, according to the data, reaches a volume of 24,204,147 MWh. This represents an increase of 5.98% (in the previous reporting week – plus 5.69%).

The consumption of electricity last year was in the order of 22,838,826 MWh.

A high level continues to be recorded in the balance (export-import) of electricity. Thus, for the period from the first day of January to the seventeenth day of August in the current 2025, it was in the volume of 1,606,040 MWh, which is an increase of 101.59% compared to the same period last year (for the reporting period until the tenth of August - plus 117.55%). Then the balance (export-import) of electricity was in the volume of 796,682 MWh.

The participation of base power plants is also moving upwards, as for the comparable reporting period of 2025, it reached a volume of 18,490,082 MWh. Compared to a year earlier, this is an increase of 9.37% (up to August 10 – plus 10.02%). According to the data of the transmission operator, last year the base power plants participated in the country's energy balance with a volume of 16,905,988 MWh.

The share of renewable energy sources (RES) in the transmission and distribution networks is also high.

According to ESO data, the participation of RES in the transmission network for the specified period of this year compared to last year is in the volume of 2,640,703 MWh, which is an increase of 20.25% (up to the tenth day of August – plus 19.95%). For comparison, a year earlier the share of RES in the transmission network amounted to 2,195,978 MWh. The positive data during the reporting period from the beginning of 2025 to August 17th are the result of the higher participation in the transmission network of photovoltaic plants (plus 28.92%), despite the decline in wind power (minus 10.89%) and the contraction of biomass (minus 22.76%).

The share of RES in the distribution network for the comparable period of the current 2025 increased to a volume of 2,674,841 MWh or by 24.55% to a volume of 2,575,247 MWh (for the period until August 10th – plus 24.81%). A year earlier, the participation of RES in the distribution network amounted to 2,147,550 MWh. The positive results for the indicated period of 2025 are due to the rather high share of photovoltaic power plants in the distribution network (plus 32.66%) and biomass (plus 8.80%), despite the decline in wind power (minus 5.58%).

The participation of hydroelectric power plants (HPPs) for the period from January 1 to August 17, 2025 compared to the same period last year remains in the negative. According to the data of the system operator for the indicated period, it is in the volume of 1,877,756 MWh, which is an annual decrease of 20.88% (until August 10 – minus 21.35%). For comparison, last year hydroelectric power plants participated in the country's energy balance with a volume of about 2,373,218 MWh.

For the first time, the report of the Electricity System Operator also includes data on the share of energy storage systems in batteries – SSEB/discharge. As it is clear from them, for the compared period of the current year, the participation of SSEB/discharge is in the amount of 126,805 MWh, which is an increase of 892.65% compared to the previous year. Last year, the share of SSEB/discharge in the country's energy balance was around 12,774 MWh.