Why electric cars cost more to insure

Electric vehicles (EVs) currently face insurance premiums 10% to 25% higher than internal combustion engine counterparts due to significantly higher repair costs and longer servicing times. Research from Thatcham Research indicates that EVs are 30% more expensive to repair on average, often resulting in total vehicle write-offs even after minor low-speed collisions. Addressing these insurance hurdles is considered critical for sustained market growth as EV sales continue to rise, accounting for nearly one in three new UK car sales in June.

Thatcham Research has identified that the integrated design of many electric vehicles significantly contributes to high repair costs and insurance premiums. During a controlled 6mph crash test of a Dacia Spring, senior test engineer Sean Hoad demonstrated how a minor impact shattered the front-mounted high-voltage charging port. Because the port is part of a single large unit including the charger and inverter, the repair cost reached approximately £4,000, making a total write-off likely. Engineer Dan Harrowell noted that manufacturers often glue components together to save weight, which prevents the replacement of individual parts and forces the purchase of entire systems.

The battery pack presents another major financial risk, as it typically represents 40% of an EV's total value. Even minor damage to the protective casing can require a full battery replacement if the assembly is not designed to be modular, a situation that frequently leads to vehicles being declared a total loss. Furthermore, the industry is struggling with a shortage of specialized technicians and parts, resulting in repair durations that are 14% longer than those for petrol or diesel models. These delays force insurers to cover the costs of loaner vehicles for longer periods, which directly inflates the premiums passed on to consumers.

To combat these rising costs, researchers are working with manufacturers to improve vehicle repairability and design. This includes advocating for the relocation of vulnerable components like charging ports and the development of replaceable battery casings so that the entire power unit does not need to be discarded after a minor scrape. The challenge is particularly acute with the surge of Chinese EV makers entering the UK; Thatcham is working to help these brands understand that high European labor rates necessitate simpler repair processes compared to their home market. While experts like Stuart Masson note that overall EV running costs are falling, industry leaders emphasize that making EVs cheaper to insure is crucial for maintaining the momentum of the transition to electric mobility.