Renewables

Slovenia’s largest solar power plant comes online as part of hybrid system

Slovenia largest solar power plant online hybrid

Photo: Thomas Coker on Unsplash

Published

February 2, 2023

Country

Comments

comments icon

0

Share

Published:

February 2, 2023

Country:

Comments:

comments icon

0

Share

HESS’s 6 MW solar power plant is in trial production, integrated with the company’s Brežice hydroelectric plant. It is the biggest facility of the kind in Slovenia.

The Brežice hydropower plant in Slovenia, on the border with Croatia, got its fourth unit. But it’s not a hydroelectric generator. The facility is now a hybrid power plant as its operator, Hidroelektrarne na spodnji Savi (HESS), said it built a 6 MW photovoltaic system and combined the two sources. It is located on the sediment landfill alongside the reservoir.

The new solar power plant is the biggest in Slovenia. The company told Energetika.net it is also the only one in the country that is connected to the 110 kV network.

Annual output is estimated at 6.8 GWh

The FEBR-D3 photovoltaic unit ensures greater flexibility in the production of electricity, according to HESS, which is controlled by state-owned utilities HSE and GEN. Annual output is estimated at 6.8 GWh.

The facility was completed in November. It received a temporary grid connection one month later. HESS revealed that it expects the start of regular operation within two months. The Brežice hydropower plant, commissioned in 2017, has a capacity of 47.4 MW.

The company is working on plans to add battery storage to its units. It runs hydropower plants on the lower part of the river Sava in Slovenia. The country’s biggest photovoltaic unit so far was HSE’s Prapretno, with 3 MW, though it is envisaged to be expanded to as much as 13 MW. Another hydropower plant operator, DEM, completed the first part of the solar park at its Zlatoličje facility.

The Brežice hydropower plant, commissioned in 2017, has a capacity of 47.4 MW

As for the rest of the region that Balkan Green Energy News covers, Albania’s state-owned operator KESH is developing a project for a complex hybrid power plant centered on its Vau i Dejës hydroelectric facility. It has already built a solar power plant on the dam and wants to install a floating solar power plant on the reservoir. The possibility to add a wind power plant is also under consideration.

In Turkey, the Lower Kaleköy hybrid system consists of a hydroelectric unit of 510 MW and an 80 MW photovoltaic plant. Its operator Cengiz Holding wants to build and integrate a wind power plant as well.

Comments (0)

Be the first one to comment on this article.

Enter Your Comment
Please wait... Please fill in the required fields. There seems to be an error, please refresh the page and try again. Your comment has been sent.

Related Articles

Serbia EMS grid connection contracts seven battery storage projects

Serbia’s EMS signs grid connection contracts for seven battery storage projects

30 April 2026 - Serbia's TSO Elektromreža Srbije signed grid connection contracts for seven standalone battery storage projects

croatia star energy enna geo geothermal projects

British Star Energy sells three geothermal projects in Croatia

30 April 2026 - The transaction releases EUR 5.2 million of restricted cash and removes future capital commitments arising from licences, the company said

Energy transition as systemic transformation Siemens Energy Lazar Mijic interview

Energy transition as systemic transformation

30 April 2026 - We spoke with Lazar Mijić, Head of Global Business Strategy in the business area Transformation of Industries at Siemens Energy, about where the region currently stands on the map of global energy transition

Greek government sees PV losses from zero prices as informal support for consumers

Greece frames solar power’s zero prices as informal consumer support

30 April 2026 - The Greek government is reluctant to remunerate photovoltaic producers for their high losses from zero or negative hourly wholesale prices