The HSE Group is one of the two largest energy companies in Slovenia and the largest producer and trader in electricity on the wholesale market in Slovenia.
With its balanced production portfolio, we represent a key pillar of reliability of electricity supply in Slovenia, provision of stability of the functioning of the electricity system and achieving Slovenia’s objectives in the field of renewable sources of energy. We have the production capacity of 2,089 MW of installed power at our disposal.
HSE EDT
58 MW
net power
SPP Prapretno
3 MW
net power
SPP Brežice
6 MW
net power
PRODUCTION CAPACITY OF THE HSE GROUP
We have the production capacity of 2,089 MW of installed power at our disposal. This includes 596 MW in systemic hydro power plants, 4 MW in small hydro power plants and 2 MW in solar power plants operated by Dravske Elektrarne Maribor. Soške Elektrarne Nova Gorica operates with 136 MW in systemic hydro power plants, 180 MW in the Avče Pumped Storage Plant, 20 MW in small hydro power plants and 0,06 in solar power plants. The two generators of the Šoštanj Thermal Power Plant have a combined power of 844 MW, and the two gas turbines a combined power of 84 MW. HSE -Energetska Družba Trbovlje has two gas-powered units with a combined power of 58 MW. Also contributing to the combined power are Hydro Power Plants on the Lower Sava, where HSE has a 49% stake or 79 MW.
Our power plants on the rivers Drava, Soča and Sava (49 %), and in Šoštanj annually produce around 7.5 terawatt hours of electricity (6.9 TWh in 2023), which represents a 68% share in the production of electricity in Slovenia and more than 85% share in the structure of production of electricity from renewable sources. Besides that, we have our own primary source of energy – lignite. Around 2,6 million tonnes of coal used for the production of electricity and heating energy gets extracted annually from the modern, underground coal mine in Velenje. Finally, we are the only producer which is able to provide large-scale Frequency Containment Reserve and Automatic Frequency Restoration Reserve in Slovenia.
