Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, whether his Department has published recent guidance for the (a) owners and (b) operators of large buildings in Greater London on replacing ageing (i) gas boilers and (ii) combined heat and power units with zero or ultra-low emission alternatives.

The Department has not published guidance for owners or operators of large buildings in London on replacing ageing gas boilers. Powering Up Britain sets out the Government's ambition to phase out new and replacement natural gas boilers by 2035.

In September 2021, the Government issued a call for evidence – ‘Combined heat and power: pathway to decarbonisation’ – in which it sought views on potential decarbonisation options. The feedback has been published and is informing future Government policy.