Shadow Housing Minister Grant Shapps has outlined how a Conservative Government will give up to £6,500 in energy home improvements.
In a keynote speech to the Building Research Establishment, he explained how this would mean both lower power bills and lower carbon emissions.
The announcement is part of an ambitious programme to get 25 million homes "greened up" to help save money for consumers while meeting environmental commitments under the Climate Change Act.
Utility companies, high street retailers and charities will supply the re-fit of homes. In return they will be able to claw back the money from new lower customer bills spread over 25 years.
Shapps painted a picture of how it would work: "Imagine if you could walk into your favourite store, buy some clothes or do your weekly shop and then at the checkout, as you hand over your Clubcard; the cashier offers you the prospect of permanently lower utility bills. There’s nothing to pay, now or even later.
Your home will be retrofitted and all you’ll notice is that it costs you less to heat and power it. Behind the scenes this retailer is working with the banking sector to fund the £6,500; resulting in home improvements like energy-efficient lighting, modern boilers, cavity and loft insulation. They make their money back through a 25 year investment."
Read Grant's speech in full.