Written Question·Department for Energy Security and Net Zero·UIN 69993

Biofuels

Tabled: 22 July 2025
Answered: 4 September 2025

Question

Adrian Ramsay

Green PartyWaveney Valley

To ask the Secretary of State for Energy Security and Net Zero, if he will set out the (a) review process and (b) changes for the greenhouse gas conversion factors for (i) bioenergy (ii) well-to-tank bioenergy each year since 2015.

Answer

Kerry McCarthy
A proportionate risk-based approach is taken to reviewing and updating conversion factors, considering size of UK emission among other factors. As part of the annual peer review process, priority improvements for each year are advised by a Steering Group,...

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