After adding PV unit, Slovenian gas power plant TEB launches battery project
The management of the Brestanica gas power plant in Slovenia has decided to diversify its activities by installing a battery energy storage system (BESS) of 40 MW in operating power and 80 MWh in capacity. The project follows the construction of a ground-mounted solar power plant on the facility’s premises and photovoltaic units on roofs and a parking canopy.
Brestanica Thermal Power Plant – Termoelektrarna Brestanica (TEB) is contributing to the flexibility of Slovenia’s energy system with its investments, Naš stik reported. Due to preventive maintenance and rapid response, electricity output reached 35 GWh in 2025, compared to the planned 25 GWh, the report adds.
The firm issued its development strategy for 2025 to 2030 last year and, based on it, decided to launch a project for a two-hour 40 MW battery energy storage system. It translates to 80 MWh in capacity.
The project will strengthen the flexibility of the energy system, enable more efficient integration of renewable sources and confirm TEB’s focus on modern and sustainable solutions, the article adds. “With the investment in the battery storage facility, we are laying the foundations for a reliable and flexible energy future,” Brestanica Thermal Power Plant said.
Among the other priorities for this year are corporate and cybersecurity.
Brestanica Thermal Power Plant is part of state-owned GEN Group. GEN energija, their parent company, operates the Krško nuclear power plant, also known by the acronym NEK and, in Slovenian, JEK. The gas power plant is also in the municipality of Krško, near Slovenia’s border with Croatia.
TEB put into operation a ground-mounted 466 kW solar power plant on its premises last year. Before that, in 2009 and 2010, the gas plant’s operator built two rooftop PV units and one on a parking canopy. They have 170 kW in combined peak capacity.
