Category Archives: Energy Efficiency

Being efficient – Roof insulation – keep it cool in summer, and hot in winter!

Energy efficiency is something everyone can aim for – its typically only a minor expense and long term you save. Heck, given our electricity costs, short term we save!

Today, I look at roof insulation.

In Cape Town, we have hot summers, and coldish winters. Sure, it *feels* cold to us, but I’ve spent many a winter in far colder places.
The worst being Harbin at -40c!
I can safely say:
#1 it does freeze before it hits the ground.
#2 don’t eat the yellow snow 🙂

Back to warmer climes though –

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I have the power! (Ripple Control, and load shedding in power systems)

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As I have a vested interest in consistent electricity back home (see my other recent post on Solar for details) and have been in discussion with the council about net metering and grid tie, I’ve been doing quite a bit of random reading regarding electricity distribution and its various facets. Continue reading