The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.

Halden, Norway, known in nuclear circles for its long-running (1958–2018) research reactor, is partnering with Norsk Kjernekraft (aka Norwegian Nuclear Power) and Østfold Energi, a hydro, wind, and heat energy provider, to explore the idea of siting a small modular reactor plant in the municipality, located in southeastern Norway, near the border with Sweden.

The Advanced Test Reactor (ATR) at Idaho National Laboratory is getting an overhaul that will keep it off line for nine months. When the ATR is restarted in early 2022, the one-of-a-kind pressurized water test reactor—which is operated at low pressures and temperatures as a neutron source—will be ready for another decade or more of service, with the potential for more experimental capacity in years to come.