If you want to properly do it, put either small conduits or power pylons along the top of the building or across the side, whichever is more aesthetically pleasing to you. Only the lights that are closest to the generator will work, because each point in the electrical network provides power in a radius around it. If you have a big house, it will be harder for power to reach from one side of the house to the other. House becomes powered up – lights are on, TV.To connect the power lines, press SPACE on the keyboard (Y (XboxOne) / Triangle (PS4))