Kier has completed the first phase of decarbonisation works at its emulsion factory in Wymondham, marking a key step in cutting carbon emissions from its highways operations across Norfolk.

The programme included a £20,000 conversion of the site's thermal oil and hot water boilers from diesel to hydrotreated vegetable oil (HVO), a lower‑carbon alternative. The switch is expected to remove 130,000 litres of diesel from annual operations and reduce direct (Scope 1) emissions by about 330 tonnes of CO₂e. It also contributes to Kier Transportation’s 2030 net zero targets for Scopes 1 and 2, with further Scope 3 benefits linked to a cleaner fuel supply. Colleagues have been trained to operate and maintain the upgraded low‑carbon assets to support long‑term performance and resilience. Set against Kier Transportation’s FY25 Scope 1 and 2 footprint of 9,539 tonnes CO₂e, the cut is notable.

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The upgraded boilers underpin critical processes at the Wymondham facility, including heating for bitumen tanks, the polymer‑modified bitumen (PMB) plant and emulsion production. The conversion was completed seamlessly with no interruption to output.

Kier said the improvements form part of its commitments to Norfolk County Council after being appointed to deliver the Norfolk Highways and Infrastructure contract, which begins on 1 April 2026.

Bobbie Perks, general manager at Kier Infrastructure, said: "This milestone is the first of a longer-term programme to decarbonise our activities in Norfolk. To have reached this ahead of our go-live date is a demonstration of our commitment to partnering with Norfolk County Council and creating a positive legacy for the local community by delivering lower-carbon highways services across the county."