JET (JOINT EUROPEAN TORUS)

Location: Culham, Oxfordshire, UK Date founded: Operation began 1983 Type of reactor: Conventional large tokamak Estimated cost: €200m (£178m approx) Current status: Holds world record for fusion output power: 16MW in 1997 Ultimate goal: Experimental device to study fusion under conditions approximating those in a commercial power plant (already achieved)