Figures from OFGEM show that savings of around £300 this year are achievable per household just by switching as a new Ipsos MORI survey from the Energy Saving Trust found more than one million homes to be on ‘Energy Autopilot’.

Nearly 60 per cent of non-switchers believe they’re on the cheapest energy tariff available, despite only 30 per cent of all bill payers believing energy suppliers actively encourage customer loyalty.

By contrast, households are more than twice-as-likely to change home insurer than they are energy provider – with 24 per cent having switched at least four times in the last 10 years.

The figures have been revealed ahead of Big Energy Saving Week, a UK-wide campaign between the Energy Saving Trust, Citizens Advice, Citizens Advice Scotland and the Department for Business, Energy and Industrial Strategy (BEIS). Running from 31 October - 6 November, events will be held throughout the UK to offer advice on reducing energy costs and help people keep their homes warm ahead of winter.

An online price comparison tool from Citizens Advice can help bill payers find a cheaper supplier. Completely impartial and including quotes from all energy suppliers, it offers a quick and easy way to see if you can unlock a better deal.

Philip Sellwood, CEO of the Energy Saving Trust, said: “Many bill payers in Scotland are missing out on substantial annual savings because they assume they are on the best tariff without actually checking. Prices fluctuate every year, so by not switching and being on ‘Energy Autopilot’, consumers may be sleepwalking towards having less money.”

Minister for consumers Margot James said: “Millions of people have already switched and saved this year, but we know that some people can find it difficult to find the best deal. Big Energy Saving Week will help people up and down the country find out how they could save on their energy bills, many could save around £300, as we create a country that works for everyone.”

Anne Lavery, acting chief executive of Citizens Advice Scotland, added: “Switching gas and electricity can help people cut their bills.

“Checking their current tariff and comparing prices regularly means people can spot the best new deals and switch to a supplier that gives them the best value for money.

“Scottish Citizens Advice bureaux will be hosting events in local communities throughout Big Energy Saving week, where people can learn how to save energy, insulate their homes and compare prices to minimise their bills. Those who can’t make an event or access the online tool can still get advice about saving money on their energy bills by contacting their local Citizens Advice Bureau for help.”