ELECTRIC TRANSPORT OVERCOMING EV CONCERNS


Electric vehicle uptake is increasing, but many potential buyers are still raising concerns. Are electric and zero emission vehicles any cheaper to run? What’s their true environmental


impact? Will my EV have enough range for my journey? Simone Bruckner, managing director of resistor manufacturer Cressall, answers these important questions and more…


T


here were more than a quarter of a million new electric car registrations last year, and


more than one in five of us expect to be driving an EV within the next five to ten years. But there are still a lot of misconceptions surrounding EVs that keep potential buyers on the fence:


EV’S HAVE INSUFFICIENT RANGE Many potential buyers are concerned about EV range. Their concern is well-founded in part, with the Nissan Leaf’s lowest range sitting at just 73 miles back when it was launched in 2011. However, EV technology has improved in


leaps and bounds since then, and most EVs now sit comfortably within the 200-300 mile range mark. And these figures aren’t restricted to high-end models either, with models like Hyundai’s Kona and Kia’s e-Niro entering the market at around £35,000 and offering modest real-world ranges of around 250 miles according to Autocar. 99% of car journeys in England are less than 100 miles, and the average length of a trip was less than ten miles pre-pandemic. Based on these numbers, EVs have a perfectly sufficient range for the vast majority of travel.


EVS AREN’T ENVIRONMENTALLY FRIENDLY A lot of the energy available through the Grid is produced through non-renewable sources. Yet, a report from the International Council on Clean Transportation found that the life-cycle emissions of EVs on the roads today are still almost 70% lower than equivalent petrol vehicles. In addition, EVs powered entirely by renewable energy sources cut their emissions by a further 11%. The same trend rings true for hydrogen fuel cell vehicles. Despite the vast majority of hydrogen being produced through environmentally damaging methods, fuel cell electric vehicle (FCEV) emissions are still 26% lower than gasoline vehicles. This is even after factoring in the emissions from the


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additional infrastructure needed to support the complex production and transport of hydrogen fuel.


EVS COST MORE TO REFUEL Petrol and diesel prices spiked mid-2022, but the price of electricity has also drastically increased over the past six months, causing uncertainty for those who may have been considering the switch to an EV. Research from the RAC found that, in January 2023, the cost to refuel an EV using a public rapid


There must be more charging facilities made


available on-street and at workplaces for drivers to charge at, and these shouldn’t be charged at a premium if we want to give consumers the incentive to switch. Automotive manufacturers should be looking


to how they can design their vehicles to get the maximum range possible to alleviate consumer concerns and also help cut their fuel bills. One of the easiest ways to do this is by implementing regenerative braking. The electric motors that usually move the car forward can be reversed when the brakes are applied. By reversing the direction of the motors, the electricity can be put back into the battery rather than leaving it to be wasted. These small amounts of saved energy can add up to be significant over time. But, regenerative braking cannot act


alone. If the vehicle’s battery is already full, the excess energy can cause an overload, leading to component damage or even failure. To prevent this from happening, a dynamic braking resistor (DBR) can be added to the system to safely dissipate the excess energy. As well as safely dissipating excess energy, DBRs are also able to convert this energy for use elsewhere in the


charger was £92.69, only slightly lower than the cost to refuel an equivalent diesel at £95.68. Consumers who are able to do the majority of their charging at home, however, still enjoy considerable savings. These EV owners can still save between £38-50 compared to the cost of refuelling an equivalent petrol or diesel car.


ACCELERATING EV ADOPTION Though many of the questions surrounding EVs can be easily broken down, there’s still a clear disparity between consumer expectations and the current provision for EVs.


vehicle. If a DBR is water-cooled, this excess heat can be used to heat the vehicle’s cabin for a more enjoyable and efficient driving experience. There’s still a long way to go before EVs make up the majority of vehicles on our roads. But the progress that the sector has made just within the last decade is undeniable. Furthermore, by making clever use of the technology available, the EV market is set for future success.


Cressall Resistors T: 01162 733633 www.cressall.com


ENERGY & SUSTAINABILITY SOLUTIONS - Spring 2023 23


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