Now the investigators have to admit it was a Swedish problem.
It started when the Oskarshamn 3 nuclear reactor (1200MW) was shut down due to a minor problem with a valve. This would not have been an issue, had not a disco failed in another part on the grid just five minutes later. The latter fault meant that the other reactors which were supposed to compensate for the fault went off the grid too. Total loss of production was 3000 MW, too much for the grid to handle.
Part of the problem is that many power plants are still closed for the summer.
[This message has been edited by C-H (edited 09-24-2003).]