Raasakka hydropower plant

The stator of the Raasakka hydroelectric power plant’s second generating unit will be replaced in 2023. The investment is part of PVO-Vesivoima’s long-term modernisation programme and will strengthen the Raasakka power plant’s production and control capabilities.

PVO-Vesivoima has decided to invest in a replacement stator. The new stator will be installed in the power plant’s second generator, replacing the 1970s original.

“The stator of the second generator of the plant’s three units has shown signs of degrading, so a new stator will be installed next year. This is a replacement investment that will ensure reliable, uninterrupted, and energy-efficient electricity production at the Raasakka power plant in accordance with our modernisation programme,” says Juha Kähkölä, PVO-Vesivoima’s development manager.

The new stator is due to be installed in the summer and autumn of 2023. The stator is supplied by the Spanish company Indar, part of Ingeteam Group.

Additional information: Juha Kähkölä, Development Manager, PVO-Vesivoima Oy, juha.kahkola@pvo.fi, tel. +358 50 303 8622

Raasakka power plant, located in Ii in Finland:

  • Completed in 1971, expanded in 1997
  • Electric and automation systems modernised in 2018
  • Capacity 64.3 MW
  • Falling height 21 m
  • Three generating units

Generators convert kinetic (mechanical) energy into electric energy. The main components of a generator are the stator and the rotor. The stator is the stationary portion fixed to the machine’s body. The rotor spins inside the stator.

PVO-Vesivoima Oy produces electricity with its hydropower plants on the Iijoki, Kemijoki and Kokemäenjoki rivers. The average total annual energy production output of the company is 1.7 TWh. The company is part of the Pohjolan Voima Group.