# ITER — World's Largest Fusion Experiment
## The Energy Codex
Session 14 | 2026-05-03

GPS 43.6944N 5.7729E, Cadarache Saint-Paul-lès-Durance Provence France. 35-nation project (EU, USA, Russia, China, India, Japan, South Korea). Budget ~$22bn. Target Q=10 (500 MW fusion from 50 MW input). NOT a power plant — scientific experiment only. Tokamak design, 840 m³ plasma volume, 11.8T magnetic field, 15 MA plasma current, 10,000t superconducting magnets at 4.5K. First plasma target 2025 (revised). Full D-T fusion 2035+. India (ITER-India/IPR Gandhinagar) manufactures vacuum vessel ports and cryostat thermal shields. SST-1 device at 23.27N 72.64E Gandhinagar. Sources: ITER Organisation, ITER-India, EUROfusion, Fusion Industry Association.