I wish you could eventually run a large powerplant from the reactor and then have electricraft wiring everywhere (long runs, many outputs) to replace your on-demand engine power to always on electrical power. Most of the RF mods do that now (ie: BigReactors) where it's always on, and a large network of RF conduits doesn't seem to have a major impact on performance.
I think EC is using an algorithm where each wire transfers power from the one next to it, so each one is using independent logic updates per tick which would be very heavy in CPU load. Again, I just think that's how it works from what I observed in game. If that is the case, would it be more practical to move to a supplier/consumer model where tree discovery is done once by the consumer, and it communicates directly with the provider to draw energy. The tree algorithm could account for resistors and wiring loss calculations, and only perform them at a scheduled interval or on wiring change event?