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Solar Water Heating

Solar Collectors

A cleaner, greener energy future today

Solar water heating (SWH) is now the BEST green investment you can make for your home.

SWH basics

Solar Electric

Rooftop PV

Generate electricity from the sun on your rooftop, today

Enhance your energy security & reduce your energy costs with solar photovoltaics (PV) 

Solar PV basics

Energy Efficiency

Energy Efficiency in the Home

The are better things to spend your money on than electricity

Make your home or office more energy efficient with these simple steps & save

Energy Efficiency Basics

Confused by Numbers

The confirmation last week by South Africa’s super telescope, of the distance of the latest supernova found by Chile last year at 3.8 billion light years away is confusing. As the speed of light travels a little over 1 billion kilometers an hour, it is just a very long way away.

More down to earth figures of Citibank withdrawing SAA’s line of credit of R250m, I can get my head around. Even the universities needing an extra R3billion at a minimum is understandable, and probably R30 billion. The cost of the drought at untold billions, and then what about South Africa’s nuclear plans? Estimates were a trillion Rand, but since the Rand has crashed that has probably increased in cost by a couple of hundred billion or more. A billion here, a billion there, the numbers just don’t seem to be really understood by anybody. Even a Presidential jet at R4billion is a sort of understandable figure.

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Change of heart at Eskom regarding consumer renewables in the future?

Has Eskom acknowledged that consumer renewables are going to force it out of its prevailing mindset of ‘buy power on our terms and at our prices’? I was pleasantly surprised at the SAIREC renewable energy conference earlier this year when listening to Barry MacColl (GM for Eskom research) at a session on energy storage, when he said, referring to the potential growth of solar PV and battery storage it “would be the end of the power company as we know it”.  Adding “It’s a worry for us, to be totally honest with you, we do have these discussions about what if everyone said, well, that’s it, we’re off the grid.” 

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