A generation II reactor
is a design classification
for a nuclear reactor
, and refers to
the class of commercial reactors built up to the end of the 1990's.
Prototypical generation II reactors include the PWR
, and VVER
contrasted to generation I reactors, which refer
to the early prototype and power reactors, such as Shippingport, Magnox, Fermi
1, and Dresden.
The nomenclature for reactor designs, describing four
'generations', was proposed by the US Department of Energy when it
introduced the concept of Generation