Octopus Go versus Agile (Southern Wales)

Octopus Go is an electricity tariff with a cheap 5p / kWh rate for four hours every night (between 00:30 and 4.30 am) and a competitive flat rate for the other 20 hours of the day.

The Go tariff is perfect for Electric Vehicle (EV) owners, those with Solar PV batteries, immersion / storage heaters or anyone that can run high usage appliances overnight.

You can find out more information about the Go tariff on the Octopus Energy website.

Alternatively, the Octopus Agile tariff works by tracking daily wholesale energy prices and providing the next days pricing by 5pm the day before. Pricing changes every 30 minutes so you can plan your usage accordingly.

Which ‘time of use’ tariff is right for you totally depends on your household daily usage.

  • Go has a very cheap daily 4 hour period through the night but then has conventional fixed pricing for the rest of the day.
  • Agile is usually much cheaper than Go from 04:30 am to 4pm, but then has the higher cost 4pm to 7pm peak period.

Swings and roundabouts? You can see the ebb and flow of the daily pricing in the graphs below.


If you find this information useful and are thinking of joining Octopus Energy, please consider using my referral code to help support running costs of the website.

Using this referral code will gift you £50 of free credit after signup: https://share.octopus.energy/linen-pearl-869

If you’re planning to join Plusnet broadband please consider using my referral username: zarch1972 of use this joining link.

Finally, we can also be found on Twitter, please follow us @energystatsuk for daily Agile tariff pricing graphs and summaries.

Note: The past performance of energy pricing is not necessarily a guide to the future.


Octopus Go versus Agile for the last 365 days

So here we are directly comparing the daily 4 hour cheap period of Go with the same time-frame on Agile.

Note: Because of the dynamic nature of Agile, 00:00 to 04:30 may well NOT be the cheapest 4 hours of the day. To help with comparisons we also show an average of the cheapest 4 hours Agile pricing from each day.


Octopus Go versus Agile for the last 365 days (grouped by week)

So here we are directly comparing the daily 4 hour cheap period of Go with the same time-frame on Agile, but grouped by week.

Note: Because of the dynamic nature of Agile, 00:00 to 04:30 may well NOT be the cheapest 4 hours of the day. To help with comparisons we also show an average of the cheapest 4 hours Agile pricing from each day.


Octopus Go versus Agile for the last 7 days

This graph shows all day with each 30 minute price change on Agile


Note: There is a 25p (including VAT) standing charge per day on the Go tariff and 21p per day (including VAT) on the Agile tariff.