Assuming working commercial designs can be up and running within 28 years (Hmmm....!), one then has to stamp them out in adequate numbers to meet demand; plus transmission and, most crucially, the distribution capacity to use them in all the places where oil and gas need to be substituted.
Given the lead time on even a bog standard CCGT is at least 5 years one does not suppose the transition away will be especially quick.
I don't dispute the potential of fusion to end a lot of the worlds problems with energy, but companies don't just decommission perfectly good equipment with decades of life left in it.
Not unless you outlaw / hard end date the older technology through other means.
Biting the hand that feeds IT
