The Netherlands' only commercial nuclear reactor is Borssele nuclear power plant, which became operational in 1973 and as of 2011[update] produces 485 MW and about 4% of the country's electricity.[1]
The older Dodewaard nuclear power plant was a test reactor that was later attached to the national grid but was closed in 1997.
The Netherlands hosts two active research reactors, the 45 MW HFR in Petten, North Holland, and the 2 MW RID in Delft, part of the physics department of Delft University of Technology. Neither of these two are designed for energy provision, but are used as a neutron- and positron-source for research and medical isotope production.