Written Question·Department for Energy Security and Net Zero·UIN 99152

Boiler Upgrade Scheme: Biofuels

Tabled: 11 December 2025

Answered: 16 December 2025

Named Day

Question

Mr Gregory Campbell

Democratic Unionist Party — East Londonderry

To ask the Secretary of State for Energy Security and Net Zero, how many biomass boilers granted and installed under the Boiler Upgrade Scheme have had to be replaced due to faults in the installation or in the boiler in each of the last three years.

Answer

Martin McCluskey

The Government does not hold specific data on the number of biomass boilers that have subsequently been replaced under the Boiler Upgrade Scheme. Ofgem, the scheme administrators, continue to work closely with the Microgeneration Certification Scheme (MCS...

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