@Janetgunter that's an excellent post, with some useful ideas.
But, I think I slightly disagree with one aspect you've mentioned.
We've had decades of trying to instill energy literacy. Huge campaigns about LED bulbs and A-rated appliances have all helped. And, as a consequence, domestic usage is down.
I see paying people to shed load as a better alternative to charging variable prices throughout the day.
But very interested to see how this all develops.