Question to the Department for Business, Energy and Industrial Strategy:

To ask Her Majesty's Government what assessment they have made of the (1) quantity, and (2) mix, of insulation that will be needed for typical homes to enable the UK to hit its 2050 Net Zero target in respect of the built environment.

The Government has not made a public assessment of the quantity and mix of insulation required to reach Net Zero. There are multiple pathways to achieving Net Zero, all with varying degrees of insulation installed. In pathways where less insulation is installed, more heat demand must be met by low carbon heat. The optimal mix will depend on a number of factors, such as the cost of low carbon heating technologies, and the ability for the electricity grid to meet peak heat demand.