I feel like it would be a good idea to add a way to combine the output of multiple generators that can support more than 64 devices, that way you can use it for a larger base/house without having to have multiple generators strewn throughout, either by connecting the generators together in series or through a new Circuit Breaker block.

Unfortunately I designed the electricity system around the use of a single electricity generator. Have you checked out the configuration options, as you can increase in limit? At some point I may raise the default limit since that's all that really needs to be done.