In Chicago, we have an API where we can get pricing updates every 5 minutes. I recently set up my AC (largest power draw) to cut off when the price goes above a certain threshold.

I don't have long-term data yet, as I just implemented this about 6 weeks ago, but last month's bill was 10% lower than the previous month and the same month the previous year. I'm looking forward to seeing the results over time.

I've been trying to think of what other automations I can try out when the price gets high. I thought maybe shorter light timers for automated lights, but all of our lights are LED, so the savings isn't really worth it.