The trials for Optimise Prime, the world’s biggest trial of commercial electric vehicles (EVs) have come to an end, and demonstrated how barriers, such as cost and energy demand, can be overcome through digitisation and new product offerings.

The trials for Optimise Prime, the world’s biggest trial of commercial electric vehicles (EVs) have come to an end.

The outcomes of this landmark study follow a year-long trial, and could help unlock the mass rollout of EV fleets across UK and beyond – vital for the UK to meet its net zero goals.

The Optimise Prime trials began in July 2021 and have been led by Hitachi Europe and electricity distributor UK Power Networks. The trial saw over 8,000 electric vehicles from Centrica, Uber and a large UK depot-based parcel carrier take to the roads across the UK, supported by distribution networks including Scottish and Southern Electricity Networks, and partners Hitachi Vantara and Novuna Vehicle Solutions. The trials included depot, home, and on-the-road charging.

The project delivered an end-to-end overview of what the switch to EVs means for the cables and substations that deliver electricity to the community, for the businesses that need to invest in new infrastructure, and for the fleet owners that need to power their vehicles. Advice was also provided to fleet operators to ensure they were getting the most out of the project.

Key interim findings of the trial found that:

• EV models can cover the typical range requirements for all three types of fleets, making electrification feasible and achievable

• To enable the private hire EV transition, a London Borough such as Tower Hamlets alone will need around 3,200 more chargers by 2025

• In the longer term, the trials highlight how EV fleets can generate revenue and support network operators by offering ‘turn-down’ services where fleets can be charged only when needed, and stop charging during peak times on the electricity network

• Digitalisation can allow for charging to be forecast by fleet and network operators to help manage demand at peak times on the network

Ian Cameron, director of customer service and innovation at UK Power Networks said: “Electrifying your vehicle fleet is a big step to take, but we are making it cheaper, quicker and easier than you ever thought possible; our project has proved that. We set out to come up with practical solutions to cut the cost of fleets going electric and that’s exactly what we have done – along with a mass of insights and learnings to help fleet managers. Just one example is how using smart charging can go a long way to lowering your up-front costs. And perhaps the best feedback we’ve had is from a fleet manager in the trial who said they had no idea of all the clever things happening in the background because it happened seamlessly without impacting on operations.”

Careful planning is essential for fleet managers as they consider transitioning to EVs. Hitachi has put together a comprehensive guide based on the experiences of Optimise Prime which considers business needs, site constraints (both physical and electrical) and the management of changes to business processes.

This, plus the final results and datasets on commercial EV charging and use will be shared openly on the UK Power Networks’ open data platform in the coming months to help the wider industry be better prepared for making the switch.