Green Options

The Salamander of myth and legend: a creature which lives in water but renews its life in fire. It’s rubbish, Bunkum, steaming horse manure…  a bit like an electric car with neither plug nor solar panels.

Except no one’s told those clever boffins over at Advanced Power and Energy Sources Transportation (APET) in Hong Kong. According to them, the Salamander and the cordless EV are about to step out of myth and into reality.

APET’s revolution centres upon how zinc air batteries can power EVs. The technology is proven on the small scale: hearing aid battery adverts dominate any Google search for “zinc air battery”.

Furthermore, as zinc air batteries need only zinc, air and water to produce electricity they are likely the most environmentally friendly ones around.

However, upscaling the technology from a hearing aid to a car has always been a problem.

Until now.

Could this be what the future of fuel looks like?

Pee. What can’t it do? From its reputable use as a fertilizer to questionable use as a hangover cure, urine has way more uses than you might imagine (or even want to know in the first place). Seriously. Some people even claim drinking it makes you healthier. Sounds completely quack to me, but what do I know?

Actually. Scratch that. This I know: drinking your own pee is universally questionable behavior.

But in the realm of interesting uses for your own bodily fluids, using urine as a source of hydrogen to power the cars of the future is a serious undertaking and based on completely sound science.

A modern team of Italian researchers has uncovered a device invented by fellow Italian G.D. Botto in 1833 that can be used to generate hydrogen with inexpensive, everyday parts. By reflecting sunlight from two parabolic mirrors onto a hollow tube wrapped in metal and filled with water, the device generates enough electricity to produce hydrogen through electrolysis. Theoretically, the device is so simple that anybody could build it in their garage.