DaveMart wrote: Focus fusion should be hugely switchable – nothing to heat up or cool down, no building up to any critical level, not even any boilers to heat up.
Should be power at the flick of a switch.
I agree. According to info on the Focus Fusion site:
https://focusfusion.org/index.php/site/article/focus_fusion_reactor/
fusion energy is initiated by a pulse of electricity lasting a few milliseconds. The pulse can be repeated (switched on) several hundred or several thousand times per second. The amount of energy produced per second is proportional to the number of electrical pulses per second, which is completely controllable, within certain limits. Other controllable factors involved are the charge size of the electric pulse, the fill gas pressure and fusible ratio of the fill gas.