The Krsko NPP was safely shut down on 4 June 2008 at 8:10 p.m. (local time), after a primary circuit leak was detected at 3:07 p.m. on the same day. The leak of about 3 m3/h has exceeded the limit of the plant Technical specifications and required the plant to shut down. The event was classified as an unusual event. There was no demand on the safety systems. The loss of coolant was controlled by the charging flow. There was no need for off-site protective measures since there were no releases to the environment. The shut down was performed in a controlled way by following the general operating procedures. The exact location of the leak was determined on 6 June early in the morning. The stem seal of the isolation valve 8067 B of the RTD manifold on the hot leg loop 2 was found to be leaking. In order to repair the leakage, the plant needed to be brought into a cold shutdown mode and the primary coolant level decreased to cold leg + 50 to 60 cm. Plant personnel performed replacement of the complete tandem of valves 8063 B and 8067 B. After successful inspection of all the RTD manifold valves the plant was on 8 June 2008 afternoon ready for start-up. The further steps to power operation are pending the SNSA regulatory inspection results.
Everywhere you look, the nuclear industry’s hype machine is in overdrive. Goldman Sachs, Microsoft, and the UK government all tout small modular reactors as the silver bullet for climate change and energy security. Tech billionaires are hiring nuclear veterans. Wall Street is whispering about “round-the-clock power” for artificial intelligence data centers. For those old enough […]
Kernenergie en veiligheid: A wargame sought to test if a major radiological release that would prompt the evacuation of millions of civilians in South Korea could distract key US allies from assisting and rebuffing an all-out military invasion of Taiwan. The short answer was yes. The game originally presumed that China, wanting to keep the […]
Big batteries and EVs to the rescue again as faults with new nuclear plant cause chaos on Nordic grids The Finnish nuclear power plant Olkiluoto was finally connected to the grid last year, at an estimated cost of €11 billion compared to the original budget of €3 billion. That cost blowout forced its developer, the […]
A vast subsea nuclear graveyard planned to hold Britain’s burgeoning piles of radioactive waste is set to become the biggest, longest-lasting and most expensive infrastructure project ever undertaken in the UK. The project [UK's nuclear waste dump] is now predicted to take more than 150yrs to complete with lifetime costs of £66bn in today’s money...The […]
Last year, the Dutch Province of Limburg started an alliance in which, besides the local government, research institutes, small nuclear reactor (SMR) developers, utilities, industrial customers and funders cooperated. With this "Limburg SMR alliance" Limburg tried to lead the way towards an SMR in Limburg. The preferred site for a first SMR would be Chemelot, […]
