Pumped storage
Kruonis Pumped Storage Hydroelectric Plant (Kruonis PSHP) is one of the largest energy storage facilities in Europe, which stores electricity generated by renewable energy sources. It can quickly react to the demand changes in the electricity network. It offers green flexibility capacities for medium-term storage.
Green flexibility technology
Kruonis PSHP is providing balancing services and is one of its kind in the Baltics. It can provide a constant supply of electricity to the entire Lithuania for around 12 hours.
At nights, when the electricity consumption decreases, the surplus energy is used to pump water from Kaunas Lagoon to the 303 ha artificial reservoir located 100 m above the Kaunas Lagoon. During the day, when the electricity demand increases, Kruonis PSHP can operate as a standard hydroelectric power plant that generates energy using the accumulated water.
A solid foundation for a stable energy sector
Units at Kruonis PSHP can reach their maximum capacity within less than 2 minutes and quickly supply electricity to the network. This makes it a reliable supply source during emergencies that can quickly react to network failures. Kruonis PSHP helps ensure the system stability, manages the network load fluctuations, regulates voltage and frequency and can restore the power system after a failure.
Capacity expansion
Currently, we are expanding Kruonis PSHP by developing the 5th unit. This will allow to increase the power plant's capacity to 1,010 MW by 2026. The expansion of the power plant will contribute towards the regional energy independence, help ensure the smooth integration of renewables into the European electricity network as well as the network’s stability.
