In its February 2020 review, the cap was reduced again, this time by £17 to £1,162.
But by April 1, 2020, the new rate came into force, meaning the level had changed to £1,126 due to a change in the way Ofgem calculates average usage.
The next review in In August 2020 set the price at £1,042.
In February 2021, the cap level was increased by nine percent to £1,138, which came into effect from April 2021.
Now, the price has jumped to £1,277 – an increase of £139, the biggest jump since the cap was first set.