"DEMO" is planned as the first prototype fusion power plant following on from JET and ITER in the mainstream fusion technology .
With the transition from ITER to DEMO, fusion will go from a science - driven, lab -
based exercise to an industry - driven and technology -driven programme. A key criterion for DEMO is the production of electricity, although not at the price and the quantities of commercial power plants.
There are several DEMO - like projects in different around the world .
This website uses the European Union DEMO project as reference and this is sometimes referred to at EU-DEMO or just DEMO?
The timescales advertised for the various DEMO projects differ, but it seems very unlikely that any prototype fusion reactor could operate before 2060. After DEMO the first commercial fusion reactor could, very likely, not operate before the end of the century .