Well, DEMO, the demonstration power station to follow ITER is estimated to have a Q of 25 and output of 2GW. Whether that's viable will then be less about the p

Well, DEMO, the demonstration power station to follow ITER is estimated to have a Q of 25 and output of 2GW. Whether that's viable will then be less about the physics and more about the cost that they can get subsequent designs down to when they have to compete with high capacity factor offshore wind, battery firmed utility solar, pumped hydro, etc. in 2040. It'll be a fascinating engineering challenge. I hope they can make it happen, but I doubt it.