Generation II reactor

[1] Prototypical and older versions of PWR, CANDU, BWR, AGR, RBMK and VVER are among them.

Typically, the modernization includes improved safety systems and a 60-year design life.

[3] This date was set as the period over which loans taken out for the plant would be paid off.

[4] By 2013 about 75% of still operating U.S. reactors had been granted life extension licenses to 60 years.

In 2016, unit 2 at the Watts Bar Nuclear Generating Station came online and is likely to be the last generation II reactor to become operational in the United States.