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Floating solar power plant in Kruonis PSHP

Today, around 400 PSHPs globally do not make any additional use of their water reservoirs. Looking for ways to develop its owned infrastructure Lietuvos Energijos Gamyba, together with Kaunas University of Technology (KTU) started implementing a pilot floating solar power plant project in Kruonis PSHP. Aimed at scientific research and developing innovations, this project would be the first of its kind in the region.

During the primary stage of the project, Lietuvos Energijos Gamyba and KTU plan to install an experimental (60 kW) solar power plant in the upper-reservoir of the Kruonis PSHP and develop an algorithm for managing the power plant and energy storage system. The algorithm will take into account constantly registered network and other physical parameters of the Kruonis PSHP. The structure resistant to ice and waves will also be designed to adjust to water-level variations.

Having evaluated the results of the pilot project, the company will assess the idea of covering the whole 300 ha upper-reservoir of Kruonis PSHP with floating solar power units. The full-size power plant could reach approx. 200-250 MW - twice as much as the current capacity of the Kaunas Algirdas Brazauskas’ hydropower plant, generating enough electricity to supply more than 120k households yearly.

Completed works

In February 2019, the experimental floating photovoltaic solar power plant project in Kruonis PSHP received funding from the Lithuanian Business Support Agency (LBSA). The total amount of 235k EUR have been granted. LBSA together with the Ministry of the Economy and Innovation have decided to fund the project after considering 139 applications, 91 of which received grants. The floating solar power plant project has been rated among the best applications.

The primary stage of the project is scheduled to be completed by the end of 2021.

Successful completion of the both stages of the project would:

  • Improve the existing infrastructure; 
  • Create favorable opportunities for providing reliable primary reserve service;
  • Increase the attractiveness of Kruonis Industrial Park to foreign investors; 
  • Allow to supply about 120k households annually;
  • Strengthen the image of Lithuania as an international leader in energy innovations.