Monday, January 28, 2008

Could the humble lemon hold the answer to South Africa's national electricity crisis?


Wind, water, sunshine, manure. Everywhere you look these days, there is an alternative energy source ready for the picking. (You pick the manure, thanks, I’ll take care of the sunshine.)

And yet, you hardly ever hear anyone talking about one of the most abundant and fresh-smelling sources of renewable energy on the planet. That’s right, I’m talking about lemons.

Not many people know that lemons are capable of transforming chemical energy into electrical energy, through a process known as “lemontricity”, according to a word I just made up. But don’t take my word for it.

You can prove it for yourself, by conducting a simple experiment with a lemon, a nail, and a copper coin.

Unfortunately, as you will discover, a lemon is capable of producing no more than about seven-tenths of a volt of electricity, so you will need quite a lot of lemons to power the average household.

So in answer to the question in the headline above: sorry, no. Still, there can be no harm in hoarding a few lemons until the electricity crisis is over.

You can always use them to make lemon meringue pie on your gas stove, or even better, you can throw them at Alec Erwin when he knocks on your door to tell you to switch your lights off.