Comment by roryirvine

Yeah, it's definitely a bit of a game for me, and my electricity bill was already low enough that the savings are trivial.

But I'm the sort of person who enjoys being flexible when planning my day. I'll fit chores such as laundry around work meetings. Decide whether to go for a lunchtime run (and thus have an extra shower) based on the weather and having an a big enough gap in my day. Buy ingredients for dinner based on the weather and how I'm feeling. Expected energy cost is just another factor in the mix - and one that only rarely becomes decisive.

The closest the UK grid has ever come to not being able to cover demand was a few years ago when most of our nuclear fleet went offline at the same time in the middle of a January cold snap due to the discovery of a potential maintenance problem in the steam plant. If there were to be a repeat of that scenario, then the spread of domestic dynamic pricing would actually help matters by driving load shifting behaviour.