Sun and wind for SA energy needs

I think there is more to suggestions of just building a wind farm here solar powering there. One of these is not going to make a world of difference but combining multiple solutions together will create something alot more effective.

I have just moved over to Ireland where the Green Party rules and they have the slogan Synergy Energy Ireland. By combining multiple green power sources they are curbing CO2 emissions and ensuring everyone has a sustainable power source for many years to come. Some of the things I have seen while over here is some monstrous wind farms in the middle of nowhere so as not to be an eyesore, there is even a large one of the coast in the irish sea.

Geothermal energy(http://en.wikipedia.org/wiki/Geothermal_energy) is also huge with most new houses making use of this to heat their home.

The last thing which I think is probably missed by most but hugely critical is that as of next year it is a legal requirement for any new home being built to be 40% more energy efficient. Imagine all the new housing estates going up in JHB being 40% more energy efficient? Its a lot easier to save something thats there than to create something new...
 
I've been looking at setting up for solar (heating and PVC) sometime soon, but I'll be damned if I can find anyone doing PVC stuff in Gauteng-they all seem to be based in the Cape. I realize the full carbon footprint of PVC isn't ideal, but living in gatties wind wouldn't be a sensible option at all. Has anyone come across a Gauteng based business doing alternate energy installations?
 
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