I’m Mick Wall, and I started this site back in 2019 as a hobby project to make Octopus Energy smart-tariff data easier to understand.
Using Octopus Energy’s open APIs, the site collects and summarises both historical and daily pricing data for popular tariffs including Agile, Go, Intelligent Go, Cosy, Flux and Tracker as well as export tariffs where you get paid for surplus solar, wind or hydro generation.
We now also provide pricing for EDF FreePhase tariff as well as an in-depth look at underlying wholesale energy pricing, which underpins the majority of the time of use tariffs.
What are Time of Use Tariffs?
A time-of-use (ToU) tariff is an electricity plan where prices change depending on when you use power. It’s cheaper when demand is low and higher at peak times. These tariffs help households save money and make better use of renewable energy.
This What are Time of use Tariffs article goes into what they are, how they work and how they might save you money.
Octopus Energy Tariff Data Pricing
The UK electricity market is split into 14 separate distinct regions, such as Yorkshire, London, Northern Scotland etc.
You can read more about the different regions in this article: https://energy-stats.uk/dno-region-codes-explained/
As the price of electricity differs for each region you will find 14 different pages for each of the various Octopus smart tariffs. This ensures you see the real world price from your region.
Here is a list of the various tariff pricing we currently have on the website
Just click on one of the above links to start exploring the pricing graphs and tariff information.
Or use the Octopus Energy Smart Tariff summary article to learn more about each tariff.
EDF Tariff Data Pricing
The UK electricity market is split into 14 separate distinct regions, such as Yorkshire, London, Northern Scotland etc.
You can read more about the different regions in this article: https://energy-stats.uk/dno-region-codes-explained/
As the price of electricity differs for each region you will find 14 different pages for each of the EDF smart tariffs. This ensures you see the real world price from your region.
Here is a list of the various tariff pricing we currently have on the website
Wholesale Energy Pricing
The UK also runs a day-ahead electricity market where suppliers bid in half-hourly auctions. Prices here can move sharply, especially when gas sets the marginal cost or when renewables flood the grid. These wholesale prices feed directly into tariffs such as Octopus Agile, making them visible to consumers in real time.
On this Wholesale Energy Pricing page you’ll find live graphs, historical trends, and data updated every day.
Octopus Greener Nights
Octopus Greener Nights (formerly Greener Days) is a free overnight forecast (23:00–06:00) showing when the UK grid is greenest. It helps Intelligent Octopus Go customers plan EV charging, earn Octopoints, and cut their carbon footprint.
This dedicated Octopus Greener Nights page shows both current and historical forecasts and how they can potentially influence Octopus Agile pricing.
Download Historical Tariff Data
The majority of the website is comprised of pre-canned graphs.
But you can also download raw historical pricing data for a variety of tariffs.
This data goes back to 2018 for all 14 regional areas in CSV format via our Energy Stats Download Data page.
Support the Site
Join Octopus Energy – Get £50 Free Credit
Homeowners who join Octopus Energy using my referral link get £50 free credit after signing up. Business users get £100 free credit, and if you’re looking at solar or a heat pump, there’s also a £100 gift card through Octopus Tech.
Buy Me a Coffee
If you’d rather just send a small one-off thank you, you can buy me a coffee here. It’s a nice way to show support, and it all goes back into running the site.
Other Ways to Support
You can also see more ways to support the site here via the likes of Plusnet broadband, Smarty Mobile, Havenwise remote heat pump control, Hetzner Cloud hosting and more.
Follow Energy Stats UK on Social Media
Follow @energystatsuk on Twitter / X, Bluesky and Mastodon for daily energy tariff graphs and updates.
Daily Pricing Graphs via Twitter / X, Mastodon and Bluesky
Octopus Energy release the pricing data from the Agile tariffs (import and export) at around 4pm each day in readiness for the following day. We also post Tracker and Greener Days information each day too.
The Twitter account @energystatsuk summarises the data graphs and publishes the data each day.
And we have also started posting the same graphs over to both Bluesky and on Mastodon.
We now have the website setup with it’s own page on LinkedIn too.
If you are interested in how the graph colours are decided, please visit the dedicated Daily Graph Colour page.
Energy Stats User Configurable Dashboards
Gain more granular access to the underlying data via user configurable graphs.
Find out more over on the Dashboards page.
You can choose from each of the 14 regional DNO areas as well along with any timescale you wish.
There are a whole host of different graphs covering the majority of Octopus Energy smart tariffs.
Recent Blog Articles
Referral information and free credit offer
If you find Energy Stats UK useful, there are a couple of easy ways to support the site and help cover hosting and server costs.
Thinking about switching energy suppliers?
Homeowners who join Octopus Energy using my referral link get £50 free credit after signing up. Business users get £100 free credit, and if you’re looking at solar or a heat pump, there’s also a £100 gift card through Octopus Tech.
Finally, a £25 gift card can be claimed when having an EV charger installed through Octopus.
Or, if you just want to say thanks, you can buy me a coffee.
You can also see more ways to support the site here via the likes of Plusnet broadband, Smarty Mobile, Havenwise remote heat pump control, Hetzner Cloud hosting and more.
Follow @energystatsuk on Twitter / X, Bluesky and Mastodon for daily tariff graphs and updates.
Note: The current and past performance of energy pricing is not necessarily a guide to the future.
