Homeowners have been urged to find out if they are eligible to receive reductions on their bills through the Warm Home Discount.
During the 2014-15 winter season, the scheme will offer £140 discounts on electricity bills. It does not affect the Cold Weather Payment or Winter Fuel Allowance, which are available to older people and those on certain benefits.
Eligibility for the programme is based on various criteria, including receiving the Guarantee Credit element of Pension Credit.
According to research by the Home Heat Helpline, 3.5 million vulnerable and low-income households around the UK are missing out on the financial support they are entitled to through initiatives such as the Warm Home Discount.
The report highlighted a number of areas where a high proportion of homes are eligible for help but not receiving it, with East London, Coventry and Doncaster at the top of the list.
After receiving almost 80,000 calls last winter, the Home Heat Helpline is preparing for another rush of requests for assistance towards the end of this year and into 2015.
Most people contact the helpline because they are struggling to stay warm or keep up with their energy bills. The service’s expert advisors offer confidential guidance on grants and support with bills, as well as tips on energy efficiency.
Barbara Vest of industry group Energy UK said: “Now is the right time to make energy efficiency changes to homes; whether it is getting a new boiler, double glazing or changing old light bulbs to energy efficient ones. It is also the best time to apply for the Warm Home Discount.”
Last month, the industry association responded to a uSwitch report on energy efficiency by pointing out that replacing old boilers is one of the best ways for homeowners to save money and be more efficient.
It also recommended turning down thermostats by one degree and fixing dripping hot water taps.