Bills and payments
Is Agile Octopus actually cheaper?
When Agile Octopus beats a standard tariff, why the answer depends on when you use power, and how to check with your own half-hourly data.
Edited by Rob Gibbs. Published: . Guidance reviewed: .
Short answer
Agile can be much cheaper for homes that move use away from the 16:00–19:00 peak and into cheap or negative-price half hours, especially with a battery, EV or automation. For a home that uses most power at teatime and cannot shift it, it can cost more than Flexible, and price spikes pass straight through. Price your own usage before switching.
What drives the answer
Agile’s price follows the wholesale market every half hour. Your bill depends on how much of your use lands in cheap half hours compared with the evening peak, which is usually the most expensive part of the day.
Homes that tend to win
The usual winners:
- A home battery charging in cheap half hours.
- EV charging scheduled to the cheapest slots.
- Flexible appliances and hot water on timers or automation.
Check before you switch
Our Agile research report shows how prices have behaved across regions and seasons. The compare-my-usage tool prices your own half-hourly data on Agile and other tariffs, and the plunge tracker shows every negative-price half hour.
Questions people ask
Can Agile prices go negative?
Yes. When renewable output is high and demand low, some half hours fall below zero and you are paid to use power.
Is there a cap on Agile prices?
Check the current Agile terms for any price cap that applies to your product version.
Tariffs in this guide
Related guides
- Why the Octopus app and your bill do not matchCommon reasons the usage or cost shown in the Octopus app differs from your bill, and how to tell which figure to trust.
- What is Octopus Energy? Tariffs and how it differsA plain-English introduction to Octopus Energy: who it is, the kinds of tariff it offers, and how to find the right one for your home and region.
- What happens to your smart meter when you switch to OctopusWhether your smart meter keeps working when you switch to Octopus, why some older meters go dumb, and what to do about it.
- Economy 7 or single rate: which is cheaper?When Economy 7 beats a single-rate tariff, the night share that decides it, and how to check with today’s Octopus rates for your region.
- Understanding your Octopus Energy billWhat each part of an Octopus bill means: unit rates, standing charges, estimated and actual readings, VAT and your account balance.
- Octopus account in credit or debit: what it meansWhat it means when your Octopus account is in credit or debit, when to ask for a refund and when to change your Direct Debit instead.
Primary sources
- Smart Tariffs terms and conditions — Octopus Energy; checked 2026-08-24. Smart-tariff eligibility, rate windows, compatibility and publication caveats.
- Energy price cap and standing charges explained — Ofgem; checked 2026-08-24. What the cap covers, how it is calculated, and why it is not a household bill limit.