Close to one million households who were initially missed from a programme designed to help people with their energy bills will be able to apply for support from the start of next year.
Care home residents, people who live on houseboats or in park homes and those who live off-grid will be able to get £400 in support - matching what is being paid out to millions of households with a more traditional energy set-up.
The support - which will also allow Travellers access to the cash for the first time - will extend to the 900,000 households in Great Britain that do not have a direct relationship with an energy supplier.
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The Government also said it would pay £200 to British households which use alternative fuels such as heating oil or wood pellets this winter.
The support comes on top of the energy price guarantee, announced under Liz Truss's government, which caps the price that a household pays for electricity at 34p per unit and 10.3p for a unit of gas.
For a household using an average amount of energy, this will mean an annual bill of around £2,500. But this is relative to how much energy you use.
Most households are also receiving £400 this winter either taken directly off their bill, or in the form of vouchers.
Payments of the £400 to households without a direct relationship with a supplier will be made through local authorities across Great Britain. Online applications open in January. There will also be a helpline for those without internet access.
Those who benefit will also include people in sheltered accommodation, those who pay through a landlord on a commercial supply deal, homes on a heat network and farmhouses that are only used for domestic purposes.
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