Renewables

PV plant built next to Slovenia’s only pumped storage hydropower plant Avče

PV plant Kanalski Vrh Slovenia pumped storage hydropower plant Avče

Photo: HSE

Published

June 5, 2025

Country

Comments

comments icon

0

Share

Published:

June 5, 2025

Country:

Comments:

comments icon

0

Share

Slovenian company Soške elektrarne Nova Gorica (SENG) commissioned its first solar power plant – Kanalski Vrh. The facility is at its Avče pumped storage hydropower plant, the only one in the country.

Surfaces around large infrastructure such as railways are convenient for photovoltaics as there are very few options for the utilization of such sites. Existing power plants, including hydropower plant reservoirs, are even better locations, as they provide access to strong grid connections and transformers.

With its strict environmental and social regulations and standards, Slovenia is struggling to determine suitable locations for wind turbines, but also larger ground-mounted solar power plants. But state-owned power utility Soške elektrarne Nova Gorica (SENG) managed to fit a photovoltaic system on the banks of the upper reservoir of its Avče pumped storage hydropower plant, in cooperation with the local community.

Kanalski Vrh solar power plant hooked to existing power line

The 2.9 MW solar power plant north of the village of Kanalski Vrh is connected to an existing 20 kV power line. The hydropower operator estimated the annual output at 3.3 GWh. It plans to expand the PV facility to 8 MW by the end of next year.

The first phase was worth EUR 2.2 million. The firm, part of Holding Slovenske elektrarne – HSE Group, used its own funds and won government subsidies.

Area gets natural science park, cycling paths together with PV facility

In the local spatial planning process, Kanalski Vrh got a natural science park and walking and cycling paths. SENG’s first solar power plant spans two hectares and consists of 4,736 modules.

“We have witnessed increasing opposition to the construction of new energy facilities for the production of electricity from renewable sources, but the Kanalski Vrh solar power plant is proof that projects can be successfully completed in an open and transparent dialogue with the local community,” Managing Director of HSE Tomaž Štokelj said.

Avče is the only pumped storage hydroelectric plant in Slovenia. It has 180 MW in pumping mode and 185 MW for production. Avče and four out of five SENG’s hydropower plants on the Soča river are in the municipality of Kanal ob Soči. The first one, Doblar 1, was built in 1939.

Kanal ob Soči is at Slovenia’s western border, with Italy. The firm also operates a group of small hydropower plants.

If the operation of a solar power plant is integrated with a hydroelectric facility, as a hybrid power plant, it can help save water on sunny days.

Slovenia hosts two other PV facilities next to hydropower plants: Brežice and Zlatoličje-Formin.

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

Montenegro NECP public consultation sole coal plant shutdown 2041

Montenegro publishes NECP for public consultation – sole coal plant planned for shutdown in 2041

30 June 2025 - The retirement of the Pljevlja coal plant is planned for 2041, but it depends on a just transition and supply security, the draft NECP reads

LONGi ignites Romania energy transition 54 1 MW BC

LONGi ignites Romania’s energy transition with 54.1 MW BC technology triumph

30 June 2025 - A PV plant in Romania's northwest is on schedule for a grid connection in the fourth quarter. It features LONGi Solar's BC modules.

Fortis Energy Albania 62 MW solar power

Fortis Energy gets green light in Albania for 62 MW solar power project

27 June 2025 - Fortis Energy received approval from the Albanian government for the construction of a 62 MW solar power plant in the country's southeast

Hidroelectrica construction pilot floating photovoltaic plant

Hidroelectrica to begin construction of its pilot floating photovoltaic plant

27 June 2025 - Romanian state-owned hydropower plant operator Hidroelectrica picked the contractor for a 10 MW floating solar power plant, its first