One of the headline grabbing features of Octopus Energy Agile tariff is when prices go negative and us end users get paid to use energy.

This occurs when there is too much generated energy on the grid, which usually coincides with high levels of renewable energy on the grid, so windy days/nights and/or lots of sun producing Solar energy.

When this happens, rather than turn equipment off its easier for the National Grid just to dump the energy cheaply onto the grid and pass on the savings to the end user.

National Grid have an article on the subject here: The weekend of free electricity?

And Octopus Energy produced a blog about the daytime plunge in April 2020.

See below for an example of when pricing went negative one afternoon in April 2020. Graph from Twitter @energystatsuk.

So to answer the recurring question “How many times has Agile gone negative?” I’ve pulled that data from all the Agile data (back from Feb 2018) and charted it below.

Note: this data is the from Yorkshire region, but the pricing varies so little region to region, its not worth created 14 different tables.

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

Using this referral code will gift you £50 of free credit after signup:

If you’re considering owning part of a wind farm through Ripple Energy, get £25 of free credit (if investing more than £1000) using my Ripple referral link.

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

Also, be sure to check out our Dashboard, Download Historical Data and OctoChargeCalc features to help you decide whether these tariffs are the right fit for you.

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

Negative Pricing 30 minutes slots on Agile in the last three years