So basically, the battery-powertrain efficiency is about 3-4 times better than with diesel. You need 3-4 nuclear plants worth of energy now. But lets see about

So basically, the battery-powertrain efficiency is about 3-4 times better than with diesel. You need 3-4 nuclear plants worth of energy now. But lets see about your math as well. One reactor (of which there may be several in a plant) is lets say 1GW. The semi will charge at say 1MW. So 1000 of them can charge at the same time. It takes about 1 hour to charge the battery so we are already at 24000 charges per day. Each of them can cover ~800km so about 19 million fleet km or 480 trips around the earth or about 25 round trips to the moon.