Octopus Tracker explained
Independent site. We are not affiliated with, endorsed by or connected to Octopus Energy Ltd. This guide is based on Octopus's own public documentation and the live data shown, which we link below. Tariff terms change, so always check Octopus's current terms for your own situation. This is general information, not financial or energy-switching advice.
Octopus Tracker gives you one electricity unit price per day, worked out from the wholesale market. You do not need to move your usage around within the day, because the price is the same from midnight to midnight. What changes is the price from one day to the next.
Where the daily price comes from
Octopus says Tracker prices follow an independently published wholesale market price. For electricity, that is the baseload average price from the N2EX GB Day-Ahead auction (Octopus's wording: the previous day's auction). Octopus feeds it into a formula that adds its other costs, such as network, environmental and social obligations, balancing and trading.
The formula is a multiplier on the wholesale price plus a fixed amount, and it is different for each region. Octopus publishes the formulas on its Tracker FAQs. For example, for London customers who joined or renewed on or after 1 April 2026, the electricity unit charge is (W × 1.30) + 9.717 pence per kWh, where W is the wholesale price in pence per kWh. Customers who joined earlier can be on older formulas, so check the FAQs for yours.
When is tomorrow's price published?
Octopus's Tracker portal says tomorrow's electricity rates are published between 12pm and 5pm each day. Our Tracker page shows them as soon as they appear in Octopus's data.
| Region | Yesterday | Today | Tomorrow |
|---|---|---|---|
| Eastern England A | 13.87p | 13.78p | not out yet |
| East Midlands B | 12.96p | 12.86p | not out yet |
| London C | 13.77p | 13.67p | not out yet |
| Merseyside & North Wales D | 15.13p | 15.04p | not out yet |
| West Midlands E | 13.04p | 12.95p | not out yet |
| North East England F | 13.31p | 13.22p | not out yet |
| North West England G | 14.03p | 13.93p | not out yet |
| Southern England H | 13.99p | 13.90p | not out yet |
| South East England J | 14.30p | 14.20p | not out yet |
| South Wales K | 14.04p | 13.94p | not out yet |
| South West England L | 14.17p | 14.07p | not out yet |
| Yorkshire M | 12.94p | 12.85p | not out yet |
| South Scotland N | 13.55p | 13.45p | not out yet |
| North Scotland P | 14.43p | 14.34p | not out yet |
Live data as of 25 Oct, 02:27 GMT. Prices in pence per kWh including VAT where Octopus publishes it; standing charges are not included. Times are UK local time.
The cap, the term and leaving
- Price cap: Octopus caps Tracker at 100p per kWh for electricity (30p per kWh for gas), including VAT. Octopus points out that is far above Ofgem's price cap, and says that if you cannot afford prices to go that high you may be better off on a protected tariff such as Flexible Octopus.
- 12-month term: Octopus says Tracker is a 12-month fixed-term tariff. The formula and standing charge stay the same for the term; only the daily unit rate moves. Octopus reviews the formula and standing charge every three months, when the Ofgem price cap changes, and customers join or renew on the latest version.
- Leaving: Octopus says there is no exit fee and you can leave at any time, but if you leave early you cannot rejoin Tracker for nine months.
- Smart meter: Octopus requires a working smart meter to join. Unlike its other smart tariffs, Tracker can still be billed from meter readings if the meter stops reporting.
- Seasons: Octopus says prices tend to be lower in warmer months and are likely to double in colder months.
Is Tracker the same as Agile?
No. Tracker has one price per day. Agile has 48 prices per day. Our guide to Agile vs Tracker compares them with today's real prices.
See Tracker and Agile prices for your region
More guides
- What is Octopus Agile and how does it work? – Half-hourly prices, the 4pm update, plunge pricing and who Agile actually suits.
- Cheapest time to charge an electric car in the UK – Live cheapest 4-hour charging windows by region, and how to work out what a charge costs.
- Cheapest time to run a washing machine or dishwasher – Live cheapest windows while you're awake and at home, plus the fire-safety advice you should know.
- What are negative electricity prices and why do they happen? – Why wholesale prices drop below zero, and where it is happening in today's data.
- Agile vs Tracker: which is cheaper? – An honest comparison, with today's Agile and Tracker prices side by side.
Sources
- Octopus Energy: Octopus Tracker
- Octopus Energy: Tracker FAQs (formula, term, cap)
- Octopus Tracker portal (when tomorrow's rates are published)
- Octopus Energy public API: product data (tariff descriptions, price caps)
- Live prices: Octopus Energy public API, cached by this site and refreshed every 15 minutes.
Last reviewed 2026-10-24. Found something out of date? Octopus's tariff terms and prices change, so treat their own pages as the final word.