It’s a fair point. But there are industrial processes that need consistent high levels of power. So large cities will probably want fusion for industrial custom

It’s a fair point. But there are industrial processes that need consistent high levels of power. So large cities will probably want fusion for industrial customers, and that power will be made available to others. Actually if you have fusion you start to think of power hungry things to use it for that were previously infeasible. Carbon capture is one. For tritium, I’m a little fuzzy on this but I thought maybe the system generates the tritium from duterium inside the reactor? It sounded like it only needs duterium as an input.