If you go to any of the major switching sites like uswitch or the energy helpline, you will see that they say they can save you about £380.
So let’s say we save you £380 in January, but then we see that in four months we can save you a further £150, either because the new supplier raised their price or because we found a cheaper tariff, you will now have saved a total of £530. Since we could switch you another 2 or 3 times that year, we only have to save a further £170 to achieve a total saving of £700.
That’s why for some customers we have saved far more than £700. It will all depend on the size of your property, number of occupants and how much energy you use.