CommercialFleet

Retrofit guide published to help fleets tackle CAZ launch

Zemo Partnership (formerly the LowCVP) has published an updated Clean Vehicle Retrofit Technology Guide to coincide with the launch of Bath’s clean air zone (CAZ).

The guide highlights the role that the wide range of retrofit technologies can play in improving air quality by cleaning up the existing vehicle fleet.

Following the introduction of Bath’s CAZ yesterday (Monday, March 15), Birmingham will launch its CAZ on June 1 and other CAZs will follow in cities throughout the UK.

Zemo Partnership’s project manager, Dan Hayes, said: “Cleaning the air is one of the most urgent challenges we face and the introduction of the UK’s first Clean Air Zone – following London’s ULEZ and Glasgow’s LEZ – will help to focus more minds on how we can tackle this challenge.

“Retrofit solutions have been one of the key tools in the box to help owners of existing vehicles meet the strengthening emissions requirements without completely replacing their fleet in one go.

“Twenty year ago, the uptake of particulate traps was accelerated in this way and, today, NOx reduction technologies, mandated on all new vehicles, are now available to be retrofitted to a wide range of commercial vehicles. With funding support available in many local areas, retrofitting can be an attractive option for hard pressed operators to clean up emissions from existing vehicles.”

The Clean Vehicle Retrofit Technology Guide aims to give vehicle operators and local authorities an understanding of national air quality frameworks for reducing roadside NO2 concentrations, providing case studies with examples of a range of accredited retrofit technologies that achieve Euro VI-equivalent levels of emissions through the Clean Vehicle Retrofit Accreditation Scheme (CVRAS).

The guide covers technologies accredited for buses, coaches, trucks, refuse collection vehicles and black cabs. Many are also applicable to vans and minibuses.

NOx abatement technologies such as Selective Catalytic Reduction (SCR) and Euro VI engine repower can provide cost-effective alternatives to purchasing new CAZ or ULEZ-compliant vehicles, it says.

Of course, retrofitting a fully electric drivetrain will also eliminate tailpipe emissions, but these too need to be accredited to ensure robust standards.

Case studies and total cost of ownership (TCO) examples for accredited technologies are included in the guide to direct readers to the most suitable solution.

The CVRAS standards have also been adopted by Transport Scotland and Transport for London (TfL), so that a vehicle with CVRAS-approved technology installed is identified in the central national database and can enter Low Emission Zones in Scotland, CAZs across England and the ULEZ in London, without receiving a penalty charge. It’s important to note that only CVRAS-approved retrofits are compliant with the emission zone standards.

Nick Harvey, senior programme manager at Energy Saving Trust, said: “Delivered with Zemo Partnership, the Clean Vehicle Retrofit Accreditation Scheme (CVRAS) provides valuable assurance for operators of buses, coaches, heavy goods vehicles, minibuses, taxis and vans to help identify which companies and emission reduction systems best suit their needs while conforming to the requirements of clean air zones.

“The introduction of clear air zones is welcomed as we work towards improving local air quality and lowering carbon emissions.”

The CVRAS Register is a free tool to identify which CVRAS-approved companies and emission reduction systems suit vehicles best, based on make, model and engine type to support companies’ efforts to improve their fleets, and lists the only retrofit options available that comply with the Clean Air Zones, Ultra Low Emission Zones, and Low Emission Zones. 

For a map of UK CAZ zones, click here

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