construction of a HTR-500, the successor of the THTR-300, but up-rated to a thermal output of 1250 megawatts and an electrical output of 500 megawatts. However nothing is currently in any stage of development. See also Gas cooled fast reactor Pebble bed reactor Gas Turbine Modular Helium Reactor Anti-nuclear movement in Germany References External links General THTR homepage IAEA HTGR Knowledge Base IAEA technical documents The THTR steam generator: design, manufacture and installation Gas-cooled reactor safety and licensing aspects THTR steam generator licensing experience as seen by the manufacturer Accident analysis and accident control for the THTR - 300 power plant Aspects of water and air ingress accidents in HTRs Safety concept of high-temperature reactors based on the experience with AVR and THTR The behaviour of spherical HTR fuel elements under accident conditions Joint undertakings of the European Union and European Atomic Energy Community Energy infrastructure completed in 1985 Former nuclear power stations in Germany Former nuclear research institutes Nuclear power stations with closed reactors Pebble bed reactors Thorium