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 board after 4pm, then schedule flexible loads into the longest cheap run. See also how to use cheap slots.