
I was driving home the other night and noticed that all our street lights were out. At first I thought the power must be out, but then noticed that the houses on the street had electricity. So the next morning I talked to our guard and inquired how long the street lights were out. According to him, they were out for as long as he could remember. Now, I'm assuming that this is a electricity conservation method used by the local city council, which, if it is quite foolish. Dark streets provide a wonderful opportunity for crime, anywhere in the world.
So I got to thinking. SA has a electricity issue, in that there is not enough to go around. Hence the rolling black/brown outs, aka load shedding. The 40,000 megawatts currently being generated by the coal and nuclear plants is just not cutting it for this fast developing country. I've read that Eskom is building another power plant, at the cost of R30 billion in Limpopo. However, this is a coal powered plant. Since coal is not a renewable resource, in a couple years we're going to be back were we started- not enough power to go around. So what are the alternatives?
Lets start with the issue that got this thought process going. The street lights being out can be solved by solar powered street lights. A Canadian company called Hybridyne Power Systems has developed a technology where the lights can be powered by the sun (via a solar panel on top) or by the wind (via a vertical wind turbine). Furthermore, the lights can be placed anywhere, as there is no need to dig up the street to lay cable to power them.
Also,instead of spending billions on fossil fuel based plants, how about wind power or wave powered plants? SA has some amazing waves, just ask the surfers in Durban. I've heard of wave powered plants popping up in Europe, (see Ocean Power Delivery in Scotland) and a while back I read that there was a test project proposed for Mossel Bay, which is a step in the right direction.
South Africa is an amazing country and it would be wonderful to see this nation at the forefront of alternative power technologies.
