When are Octopus Agile prices usually cheapest?

There is no fixed “always cheap at 2am” rule. Weather, demand, and wholesale markets move the curve. Still, patterns repeat often enough to plan around:

• Overnight — frequently among the cheapest windows.
• Evening peak (~4–7pm) — often the most expensive.
• Sunny / windy days — midday can dip, sometimes deeply.

The reliable approach: check today and tomorrow on the free board after 4pm (public Octopus API rates), then schedule flexible loads into the longest cheap run. Or get a daily digest via email alerts — 7-day free trial, then 99p/mo. See also how to use cheap slots.