![]() It is estimated that subsequent commercial fusion reactors could be built for about a quarter of the cost of DEMO. According to timeline from EUROfusion, operation is planned to begin in 2051. To achieve its goals, if utilizing a conventional tokamak design, a DEMO reactor must have linear dimensions aboutÄ¡5% larger than ITER, and a plasma density about 30% greater than ITER. However, the nominal value of the steam turbine is 790 megawatts, which, after overcoming a 5% loss because of the coupling from the turbine to the synchronous generator, results in a nominal value for electrical power output of approximately 750 megawatts. The EU DEMO design of 2 to 4 gigawatts of thermal output will be on the scale of a modern electric power station. ![]() The following parameters have been used as a baseline for design studies: the EU DEMO should produce at least 2000 megawatts (2 gigawatts) of fusion power on a continuous basis, and it should produce 25 times as much power as required for scientific breakeven, which does not include the power required to operate the reactor. ![]() The most well-known and documented DEMO-class reactor design is that of the European Union (EU). Plans for DEMO-class reactors are intended to build upon the ITER experimental nuclear fusion reactor. ![]() With the possible exception of the EU and Japan, there are no plans for international collaboration as there was with ITER. Most of the ITER partners have plans for their own DEMO-class reactors. Artist's concept of DEMO connected to the power gridÄEMO refers to a proposed class of nuclear fusion experimental reactors that are intended to demonstrate the net production of electric power from nuclear fusion.
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