As a result of the Fukushima nuclear disaster, NISA is now requiring electric utility companies in Japan operating nuclear power plants to install two backup generators for each reactor instead of one as currently required.
Nuclear power plant operating companies have already moved to ensure backup in depth for power and cooling at Japanese nuclear power plants.
Umm... I'm only familiar with United States regulation, but the way I understood it was this:
1 reactor: 2 backup generators
2 reactors: 3 backup generators
These are demanded based on the probability safety assessment for the reactors by the NRC. I'm wondering if I'm reading this in an over-simplified manner, or if it would actual be legal to operate a single reactor site in Japan with only one backup generator.
Love your blog, great contribution to the discussion going on!
Posted by: Alan | April 11, 2011 at 12:05 PM