Olkiluoto 3 at full power for the first time
Olkiluoto 3’s nuclear commissioning has proceeded to the full electrical power level of approximately 1,600 MW. The plant unit is now the most powerful electricity production facility in Europe and the third most powerful globally. Regular electricity production is to start in December 2022.
Approximately 40 percent of Finland’s electricity is currently produced in Olkiluoto. Olkiluoto 1 and Olkiluoto 2 both produce approximately 21 percent of the current electricity demand and Olkiluoto 3 approximately 19 percent.
- Today, we have reached a historically important figure on our production monitor. We will now focus on completing the tests according to the commissioning programme and reaching regular electricity production in December, says Marjo Mustonen, Senior Vice President for Electricity Production.
Significant tests and irregular electricity production to follow
Ten sets of tests impacting the plant unit’s power level remain, all of which excluding one have already been carried out at the lower power levels. In some of the upcoming tests, the plant unit’s production is either intentionally interrupted or the power level is lowered. A completely new test to be completed is the so-called Fault Ride Through (FRT) carried out together with transmission system operator Fingrid, in which a short circuit is caused in the main grid’s test area. In addition, multiple tests are conducted at full power which have no impact on the plant unit’s power level.
The production forecast during nuclear commissioning can be followed on our website at: https://www.tvo.fi/en/index/production/plantunits/ol3/ol3forecast.html
Teollisuuden Voima Oyj has produced electricity for its shareholders, Finnish industrial and energy companies, safely and reliably for over 40 years. Nuclear electricity generated at TVO's Olkiluoto plant covers approximately 30 percent of Finland’s electricity demand once Olkiluoto 3’s regular electricity production has started. Climate-friendly nuclear electricity not only benefits society but also reduces the environmental impact of energy production. Moreover, the world's first final disposal facility for spent nuclear fuel is under construction in Olkiluoto.
