Motorsport has traditionally been about noise, speed and the smell of burning rubber. Spectators loudly cheering the high-octane thrills and spills in racetracks around the world might not spare much thought about what damage it could be doing to the environment. But despite this, racing recently appears to have got something of an environmental conscience – and the world of green racing is slowly but surely growing.
Promises of a green racing revolution have yet to get off the grid, though. Last year, a fuel cell car was due to race in the prestigious Le Mans 24-hour race in France in June, but had to pull out at the last minute due to technical problems. In 2008, Formula Zero – a race between hydrogen-powered cars built by six competing universities – tried to show that sustainable energy needn’t be po-faced, and while the zero-emissions race is no longer going, it boosted the idea of a cleaner, greener brand of motorsports.
One of the biggest issues for green motorsport, however, is how to turn around public perception. Can fans be convinced that environmentally friendly cars can also be fast and exciting?
There are encouraging signs that this is happening. Nascar has takensteps to becoming greener, running cars on ethanol and turning its race meets into centres for recycling everything from waste engine oil to old mobile phones. And on Monday Formula E demonstrated its new, fully electric race car for the first time in Las Vegas, capable of reaching speeds of more than 150mph (240kph), and going from 0-60 in under three seconds. The first Formula E championship begins in September, and will see the cars competing in 10 world cities, including London, Beijing and Los Angeles.
The key is how effective the tech will be. At last year’s failed attempt in Le Mans, one piece of technology did prove itself in the grueling race – the humble flywheel. This is currently being exploited by German carmaker Audi, which uses it to recapture energy usually lost when braking, and then use it for acceleration. F1 cars have used hybrid tech in the form ofkinetic energy recovery systems, or KERS, since the 2009 season.
Power boost
Regenerative energy recovery is also at play in the vehicle I was allowed to throw around a test track; a modified hybrid Chevrolet Corvette, usually viewed as an all-American muscle car. This car also runs on a blend of biofuel, known as E85. In this case, the car uses a type of advanced cellulosic 85% ethanol – renewable fuel from woody biomass. This manages to avoid some of the main problems associated with biofuels; that they use land and water that would be better used for food production.
The car also has hybrid technology with regenerative brakes. When the car is slowed, energy is recovered and stored in a battery. When an added burst of speed is needed, a paddle behind the steering wheel provides a boost using that stored energy.
“In racing, if you’re not going to make it faster, or more exciting, why even do it?” asks Forrest Jehlik from the Argonne National Laboratory, part of the US Department of Energy, outside Chicago, where I’m test-driving the car. “But if you can do that, and at the same time remove yourself from the environmental debate, it’s a win for everybody.”
In this case, the car I am driving is a simulator – perhaps fortunately as I continually crash it into the barriers. It is one of several in a large show trailer designed to be taken to events such as races and car meets, so that enthusiasts can witness the benefits of green tech, first hand. The simulator consists of a racing seat, a large flatscreen in front, and immersive sound. The experience is like a racing game, but with much more realistic controls.
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