The modernisation works of the stator of PVO-Vesivoima Oy's Raasakka hydropower plant's second generating unit have been completed and the generating unit is again in operation on the Iijoki river. The replacement investment will ensure the power plant's reliable electricity production and regulating capabilities.
The modernisation works at the Raasakka power plant begun in the beginning of August and were completed according to plan at the end of October. The new stator replaced the original part of the generating unit from the 1970’s, whose condition had degraded.
“The modernisation of the stator, which is a fixed part of the generator, were conducted according to schedule and plans. The power plant is again generating electricity with all of its three generating units. The renewal of the stator was a continuation of the long-term modernisation programme of our hydropower plants that helps us to take care of our power plant’s uninterrupted operation for decades to come. At the same time, the modernisation will improve the energy efficiency of the generating unit. Reliable operation of the machinery will also strengthen our capability to a flexible production that can be regulated according to the electricity need and situation of the water environment”, says Juha Kähkölä, Development Manager of PVO-Vesivoima.
The new stator is supplied by the Spanish company Indar, part of Ingeteam Group. The modernisation of the second generator’s stator is a continuation of the electrical and automation systems of the Raasakka power plant, completed in 2018.
Additional information: Juha Kähkölä, Development Manager, PVO-Vesivoima Oy, juha.kahkola@pvo.fi, tel. +358 50 303 8622
Raasakka power plant, located on the Iijoki river 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
- The Fisheart fishway supports the upstream migration of migratory fish from spring to autumn
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. www.pohjolanvoima.fi