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The negative consequences of energy efficiency policy

I’m going to touch on a couple of things in this post – a recently formed research group out of the US about how people impact energy efficiency and also how house energy efficiency policy such as Basix is increasing the use of air conditioning. First up the impact of people Researchers from the MIT […]

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How to be green – Ceiling Fan versus Airconditioning

I got asked recently whether running ceiling fans all night consumed more energy than running an airconditioning unit at night. So here are the calculations. Lets take a three bedroom house, assume that all three bedrooms will either have the ceiling fans or airconditioning on all night.

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The most efficient air conditioning system is one that’s turned off

A big thanks to one of my first bosses for telling me this keeper – “yes, heat exchangers make air conditioning more efficient but the most efficient air conditioning is one that’s turned off” – priceless and spot on. And so in that vein we have soldiered through our hot Sydney summer avoiding the use […]

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Parisians see the light, but not between 1am and 7am

While we see TV screens being fitted to rubbish bins in London, Paris is taking steps in the right direction. Starting in July 2013 all shops, offices, public buildings will be legally required to turn off their internal and external lights. Street lights will of course be left on. It has been reported as both […]

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