@steve @sean I think it depends on the size of your battery vs your usage.Looks like Go is 33p during the day, so to beat Agile, my battery would need to cover our usage between 05:30 - 00:30. Realistically, it might cover a quarter of that.What Go gives you though, is consistency - rather than dynamically load shifting, you can effectively build a routine, whereas with Agile I only find out when's cheap (if at all) the day before