Power plant containing 40 nuclear reactors, capable of generating up to 6.8GW. The reactors will turn on and off in pairs acording to your energy consumption, saving fuel if you don't use the maximum amount of power.
64 water pumps are needed to run this layout (32 pipes on each side).
Due to the simple circuit used to control the fuel consumption (no combinators), you have to manually insert 1 fuel cell on each reactor to start the process. Subsequent refueling is done by bots.