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As part of the UK’s commitment to end its climate change contribution, the government has committed to supporting the growth of green, zero emission technologies. Access to public electric vehicle (EV) charging infrastructure has been defined as a key part of supporting the transition to greener transport, and to meet this challenge, we have been working to assess gaps in charging infrastructure at UK motorway service stations.
We were commissioned by the UK’s Department for Transport (DfT), Office for Low Emission Vehicles (OLEV) and the Department for Business, Energy & Industrial Strategy (BEIS) to assess the electrical grid infrastructure requirements needed to accommodate EV charging on motorways in the UK until 2040.
Our analysis has fed into the publication of a policy paper outlining the UK government’s vision for the rapid chargepoint network in England in May 2020. The vision aims to ensure that there is a rapid-charging network ready to meet the long-term consumer demand for electric vehicle chargepoints ahead of time.
Plugging the charging gaps
Grid requirements are based on the minimum viable charging network needed to meet the EV charging demand. This is effectively a network of ultra-rapid (150KW+) hubs to meet long-distance charging needs. Arup assessed the barriers to rolling out the infrastructure and the potential size of any gaps, with a focus on grid connections. This work will help inform decisions for potential government interventions supporting the development of national EV charging infrastructure at 120 Motorway Service Area (MSAs) locations.
Plugging the charging gaps
Grid requirements are based on the minimum viable charging network needed to meet the EV charging demand. This is effectively a network of ultra-rapid (150KW+) hubs to meet long-distance charging needs. Arup assessed the barriers to rolling out the infrastructure and the potential size of any gaps, with a focus on grid connections. This work will help inform decisions for potential government interventions supporting the development of national EV charging infrastructure at 120 Motorway Service Area (MSAs) locations.
Modelling future needs
To help develop an accurate estimate of likely energy requirements for each site, we analysed individual movements from regional transport models to better understand how people are likely to use charging stations throughout the day. We then translated it into infrastructure required (the number of chargepoints and capacity needed) for three demand levels, including 100% EV uptake. We provided cost estimates for multiple connection options per site to give a sensible range. The grid costs vary by location, based on electricity network constraints and the size of that site’s demand.
Reducing carbon in collaboration
We worked closely with a variety of stakeholders to deliver the study, including MSA operators, charging operators, distribution network operators, National Grid, Pivot Power and Highways England. The UK Government’s Rapid Charging Fund is currently being defined with our work feeding into it and we are now undertaking further similar work, focussing on A-roads in England.
National Grid / Pivot Power / Highways England
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