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Pohjolan Voima Oyj’s joint venture Teollisuuden Voima Oyj announces: Damage has been detected in the internals of the feedwater pumps at Olkiluoto 3 EPR’s turbine island

Pohjolan Voima Oyj’s joint venture Teollisuuden Voima Oyj has announced that damage has been detected in the internals of the feedwater pumps located in Olkiluoto 3’s turbine island during maintenance and inspection work. This will most likely have an effect on the continuation of Olkiluoto 3’s nuclear commissioning and the start of regular electricity production. A schedule estimate is to be completed during the upcoming days. 

According to plant supplier consortium company Siemens, the schedule impact of the feedwater pumps’ damage is not yet known. TVO is actively taking part in advancing the investigation together with the plant supplier.

In the feedwater pumps located in the nuclear power plant’s turbine island, water from the feedwater tank is pumped into the steam generators. The damage detected at the pumps has no impact on nuclear safety.

The plant supplier is obligated to complete the plant unit in accordance with the Plant Contract and settlement agreements. The regular electricity production of OL3 EPR has previously been announced to start in December 2022 in accordance with information received from the plant supplier.

Information on electricity production during the test production phase is published on TVO’s website at www.tvo.fi/ol3forecast.



Nasdaq Helsinki


Further enquiries:

Riitta Larnimaa, EVP Communications and Public Affairs, Pohjolan Voima Oyj,
tel. +358 50 438 2466, riitta.larnimaa@pvo.fi

About Pohjolan Voima Oyj

Pohjolan Voima is a versatile and skilful Finnish energy company. Our shareholders are also our customers: a wide range of Finnish industrial and energy companies. We produce electricity and heat at cost price to our customers with hydropower, thermal power and nuclear power. Our share of the total electricity generation in Finland is approximately 20%. Already 96% of our electricity generation is carbon neutral. 

We create decisive power to strengthen competitiveness and contribute to a better tomorrow. 
Pohjolan Voima – Decisive Power. www.pohjolanvoima.fi