Keltbray, a leading UK specialist engineering business, today announces it has swapped 80% of its red diesel demand for Hydrotreated Vegetable Oil (HVO) and is committed to completely removing red diesel from across all of its projects by the end of the year.

The decision follows a successful trial using the fuel supplied by hire and services provider Speedy, which is a Hydrotreated Vegetable oil (HVO), and analysis on two identical Caterpillar 25tonne machines, one on standard red EN590 diesel and one on HVO fuel.

Earlier this year, Keltbray announced it was the first major construction firm to trial HVO fuel. Before the announcement, the fuel was yet to enter Keltbray’s excavator fleet and was being trialled to assess whether it could reduce the impact from construction plant operations.

Following analysis of the results and verification by Imperial College London (UCL), the local air quality benefits calculated saw an 8% reduction in CO2 when testing newer machines. There was a 20% reduction in CO2 when Keltbray carried out tests on older machines.

Keltbray is the first organisation to gain third party results of the local air quality benefits by working with Imperial College London (UCL).

To further reduce the carbon emissions, the fuel is stored on site in bowsers with telematics which communicate with the supplier, Speedy, to indicate when the tanks need topping up. This in turn reduces the frequency of fuel deliveries to site.

Kiro Tamer, Head of Environmental Sustainability at Keltbray, said, “Keltbray has committed to net-zero by 2040 but until hydrogen and other zero emissions technologies mature, HVO can play a key role to assist the industry reducing reliance on fossil fuels. The great thing about HVO is that it can help reduce CO2 emissions from the newer machines by almost 10% without the need for any modification, and its overall embodied and reporting carbon emission is over 90% less than ordinary diesel.”

Mike Derome, Head of Fuel at Speedy, said, “We’re delighted that our trial with Keltbray was successful and the business is now rolling out HVO fuel to the entirety of its operations. Speedy’s standard low emission fuel is the only HVO fuel approved for use in Speedy equipment. For every 350 litres of HVO fuel used, 1 tonne of CO2 is saved versus fossil fuel so we’re pleased to see the trial results yielded significant reductions in CO2.”




Media Enquiries:

Nina Fairfowl, Corporate Communications and Group Inclusion Manager

Keltbray Holdings Limited

Tel: 07395 792301

Email: [email protected]


Philip Pashley

Group Proposals and Communications Director

Keltbray Holdings Limited

Tel: 07860 954620

Email: [email protected]


Notes for Editors

About Keltbray

Keltbray is a leading multi-disciplinary engineering and construction services business, offering a uniquely integrated delivery capability spanning key phases of the client value chain.

Keltbray provides certainty of outcome for prestigious public and private sector clients often in highly regulated markets like rail and energy, contributing to the development and maintenance of Britain’s rapidly changing economic and social infrastructure.

Our professionally accredited teams of engineering and construction professionals take pride in delivering safely and sustainably to enhance, upgrade and decarbonise our clients’ capital assets.

About Speedy

Founded in 1977, Speedy is the UK’s leading provider of tools, equipment and plant hire services to a wide range of customers in the construction, infrastructure and industrial markets, as well as to local trade and industry.  The Group provides complementary support services through the provision of training, asset management and compliance services. Speedy is certified nationally to ISO50001, ISO9001, ISO14001 and OHSAS18001. The Group operates from 200 fixed sites across the UK and Ireland together with a number of on-site facilities at client locations, and through a joint venture in Kazakhstan.