Ofgem's £24.2 billion investment to "upgrade and renew" the country's gas and electricity infrastructure includes funding to connect around 80,000 fuel poor households to the gas grid, "helping them benefit from cheaper fuel".
Families are considered to be in fuel poverty when they have to spend more than 10% of their incomes on keeping their homes warm.
Campaigning organisation the Fuel Poverty Action Group said that nearly half of the UK's fuel poor households are pensioners, a third contain people with some sort of disability or illness, a fifth contain a child aged five or under and one in 10 house someone aged 75 or over.
The Fuel poverty ratio is therefore defined as: Fuel poverty ratio = fuel costs (modelled consumption x price) ÷ income
In the calculation of this ratio, the fuel consumption is modelled, to ensure the household achieves the satisfactory heating regime.
Therefore, if the dwelling is actually heated to a temperature below the level defined as being satisfactory, the estimated bill for that household will be higher than the actual bill and vice versa.
Some 300,000 more homes are likely to have been pushed into "fuel poverty" by Christmas amid soaring energy prices, an advisory body warned today.
The Fuel Poverty Advisory Group (FPAG) urged Prime Minister David Cameron to take stronger action to ensure there is a more widespread and ambitious effort to tackle "spiralling" fuel poverty levels.
It said the latest round of energy price rises has increased the average annual energy bill by 7%, taking it to £1,247 for direct debit customers and #1,336 for cash and cheque customers.
These increases are likely to have pushed a further 300,000 households into fuel poverty and estimates have already shown that over nine million households could be living in fuel poverty by 2016, the FPAG said.