The thing is, there are issues with handling a grid that go beyond the money aspect. Balancing a grid that relies on a few production plants is already a non-t

The thing is, there are issues with handling a grid that go beyond the money aspect. Balancing a grid that relies on a few production plants is already a non-trivial endeavour. Changing the network is usually a slow process. Adding a new power line to fix some topologic issues can take years to plan and millions to build. Having a robust grid means grid operators have to know details of the network, and be able to know how to reroute power when a line becomes too close to its limits or (worse) when a circuit-breaker opens. Studying the current network takes time. That's why adapting to frequent changes isn't realistic, purely from the carrier's perspective, without even looking into power production aspects.