More than 3.2 million customers have switched supplier so far in 2018, figures from Energy UK reveal.
Last month just under half a million (477,106) customers switched supplier, up by nearly a quarter (23 per cent) compared to the same time last year.
The figures, released today (13 August) show 182,814 customers switched to small and mid-tier suppliers in July, which accounts for 38 per cent of all switches.
Over a quarter (26 per cent) of switches were between larger suppliers, while 19 per cent were between small and mid-tier suppliers.
According to research from the Energy Switch Guarantee, confidence in switching is high with 90 per cent of customers happy with the process.
The guarantee is a set of commitments to ensure switching is simple, speedy and safe and now covers more than 90 per cent of the market.
Lawrence Slade, chief executive of Energy UK, said: “It is positive to see that nearly half a million customers switched to a better energy deal in July despite the record high temperatures.
“It has never been a better time to shop around or call your existing supplier to see if you could be on a better deal for you – whether that’s a cheaper deal or a green tariff or better customer service.
“Switching can take as little as ten minutes and, with the Energy Switch Guarantee in place, customers should feel confident it will be simple, speedy and safe.”