The number of houses switching their energy provider in Great Britain rose by 15% in 2015, Ofgem confirmed that 6.1m gas and electricity accounts had switched supplier or tariff during the year; that's about 800,000 more than in the previous year.
"It's encouraging to see switching levels at their highest level for four years," said Ofgem's Rachel Fletcher.
The big six energy companies have all cut prices for their gas customers this year by at least 5.1%, but there have been no reductions to electricity tariffs. However independent suppliers like GB Energy continue to undercut the major brands in the market.
The average saving for householders using PowerSwitch.com has been £364 a year based on switches made in 2016.
For 10% of people, they were saving as much as £567 a year. Compare supplier and switch online in 5 minutes here