Originally designed for 100,000 hours of reactor life, Arktikas service life was prolonged another 50,000 hours in 2000, and another 25,000 hours after that, adding eight years to a 25-year planned service life. The life extension was accomplished by means of replacing critical equipment to allow the safe and continued operation of the nuclear plant.
The original design lifespan of Arktikas' reactor was 100,000 hours, and it was extended by an additional 50,000 hours in 2000 and another 25,000 hours after that, extending its planned service life from 25 years to 33 years. This extension was achieved through replacing critical equipment to ensure the safe operation of the nuclear plant.