Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what estimate her Department has made of the total capital and operational cost of transitioning its vehicle fleet to 100% Zero Tailpipe Emissions by 31 December 2027; and what assessment has been made of the difference in cost compared with retaining and maintaining a petrol and diesel fleet over the same timeframe.

The estimated cost to transition 309 vans from diesel to electric to achieve 100% Zero Tailpipe Emissions (under 3.5 tonnes) by 31 December 2027 is £10.1 million compared with a diesel equivalent of £12.2 million. These costs are based on “whole life costs” of five years and include electric maintenance costs forecast at 60% less than comparable diesel.

Defra also operates a fleet of 4x4s (1,132 vehicles). The department applied to the Department for Transport for an exemption from the requirements of the Government Fleet Commitment, with the productive engagement with Office for Zero Emission Vehicles. This was granted on 28 May 2025.