I recently just set up a smart plug I got at LIDL for about €8 to turn on only for the 6 cheapest hours per day. Here in Spain the prices change per hour seemi

I recently just set up a smart plug I got at LIDL for about €8 to turn on only for the 6 cheapest hours per day. Here in Spain the prices change per hour seemingly randomly but they give 24 hours notice. It was pretty easy to do in about 5 lines of YAML in Home Assistant that hits a JSON api with the prices. I use it to charge my electric scooter and battery banks. Remains to be seen if running a Pi with Home Assistant 24/7 actually would save any money overall, but I am already running it for a Pi Hole instance.