Unsurprisingly, a lot of effort is going into finding something better. New, so-called solid-state batteries are being developed that should charge more quickly and could be about a third of the weight of the current ones – but they are years away from being on sale, by which time, of course, we will have made millions of overweight electric cars with rapidly obsolescing batteries. Hydrogen is emerging as an interesting alternative fuel, even though we are slow in developing a truly “green” way of manufacturing it. It can be used in one of two ways. It can power a hydrogen fuel cell (essentially, a kind of battery); the car manufacturer Toyota has poured a lot of money into the development of these. Such a system weighs half of an equivalent lithium-ion battery and a car can be refuelled with hydrogen at a filling station as fast as with petrol.
If the lithium-ion battery is an imperfect device for electric cars, it’s a complete non-starter for trucks because of its weight; for such vehicles hydrogen can be injected directly into a new kind of piston engine. JCB, the company that makes yellow diggers, has made huge strides with hydrogen engines and hopes to put them into production in the next couple of years. If hydrogen wins the race to power trucks – and as a result every filling station stocks it – it could be a popular and accessible choice for cars.
But let’s zoom out even further and consider the whole life cycle of an automobile. The biggest problem we need to address in society’s relationship with the car is the “fast fashion” sales culture that has been the commercial template of the car industry for decades. Currently, on average we keep our new cars for only three years before selling them on, driven mainly by the ubiquitous three-year leasing model. This seems an outrageously profligate use of the world’s natural resources when you consider what great condition a three-year-old car is in. When I was a child, any car that was five years old was a bucket of rust and halfway through the gate of the scrapyard. Not any longer. You can now make a car for £15,000 that, with tender loving care, will last for 30 years. It’s sobering to think that if the first owners of new cars just kept them for five years, on average, instead of the current three, then car production and the CO2 emissions associated with it, would be vastly reduced. Yet we’d be enjoying the same mobility, just driving slightly older cars. (...)
Increasingly, I’m feeling that our honeymoon with electric cars is coming to an end, and that’s no bad thing: we’re realising that a wider range of options need to be explored if we’re going to properly address the very serious environmental problems that our use of the motor car has created. We should keep developing hydrogen, as well as synthetic fuels to save the scrapping of older cars which still have so much to give, while simultaneously promoting a quite different business model for the car industry, in which we keep our new vehicles for longer, acknowledging their amazing but overlooked longevity.
Friends with an environmental conscience often ask me, as a car person, whether they should buy an electric car. I tend to say that if their car is an old diesel and they do a lot of city centre motoring, they should consider a change. But otherwise, hold fire for now.
by Rowan Atkinson, The Guardian | Read more:
Image: A Volvo hybrid car undergoes emissions tests for the campaign group Transport & Environment in 2021. Photograph: Emissions Analytics/Reuters
