The government's recently announced Eco+ scheme could see hundreds of thousands of homes across the country receive loft and cavity wall insulation, saving consumers around £310 a year, according to the energy secretary. 

The £1bn scheme will run for three years from Spring 2023 and target households that do not currently get support to upgrade homes. Around 80 per cent of the funding will be made available for those households who are in some of the least energy-efficient homes in the country – that is, those with an EPC rating of D or below – and in the lower council tax bands.

A fifth of the funding will also be targeted to those who are the most vulnerable, including those on means-tested benefits or in fuel poverty, the government said.

In addition, approximately £18m will be spent on a public information campaign giving advice about how to save energy. The advice is expected to include reducing boiler flow temperatures from 75°C to 60°C and...