The latest electricity switching data also shows 113,780 customers switched to smaller suppliers in November, which is above average at 29% of all switches for the month.
By July this year, there were a total of 29 companies selling at least one energy source to household customers – also an all time high.
This will provide comfort to the UK Energy Minister Amber Rudd – whose policy is to encourage new suppliers to enter the market to provide competition to the Big Six ‘legacy’ providers and to keep prices lower for consumers.
Lawrence Slade, chief executive of Energy UK, said: “We have seen a record number of switches so far this year which proves people are engaged with their energy providers and shopping around to find the best deal for them.
“The industry and government’s commitment to make switching simpler and quicker for customers has been reflected in the increase in switches this year.”