With Agile Octopus, you get access to half-hourly energy prices, tied to wholesale prices, updated daily. When wholesale electricity prices drop, so do your bills – and if you can shift your daily electricity use outside of peak times, you can save even more. With a few changes we've managed to halve our electricity bill last month, saving over £80, that's nearly £1000 a year!

If you would like to calculate how much switching to Agile might save you, I've designed a script to calculate your last weeks usage. Click on the calculator for more details.

If you're not already an Octopus customer, they are offering a £50 credit just for changing your supply to them. With suppliers all offering the same prices, its basically free money. Once you're on board, you can move between tariffs any time. You can even try Agile and if you dont like it, change back the next day, without any penalty. To claim your free £50, click on the sign up link here.