Energy efficiency

Energy sobriety: Japan shows the example

Further to the Fukushima catastrophe in March, Japan has been decreasing in a massive way its electricity consumption. Indeed, only 17 nuclear reactors are bringing power to the grids out of the 54 existing ones. As the New York Times notes : ” Preliminary figures indicate that regions under conservation mandates have been able to …

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Great technologies for our computers

To Clean Technica : ” Samsung has developed a new computer that is solar-powered! The Samsung NC215S netbook it will be the first computer of its kind. The power will come from a solar panel embedded in the lid. “ Still to Clean Technica : ” a team of researchers at Australia’s RMIT have demonstrated a new, …

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More efficiency, wind power and nuclear for China

As the world’s first energy consumer and greenhouse gases emitter, the People’s Republic of China is under closed scrutiny from energy analysts. Last week, not one or two but three different news caught my attention on this country. The climate situation there is dreadful as according to CNN massive floods forced 1.6 million people to …

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Subsidies and drilling won’t solve our problems

You know probably know it : America – and to be fair, many other countires –  is giving a lot of subsidies to Big Oil and companies that are making billions of profits. This doesn’t make sense economically nor environmentally. You might also remember that I have been advocating changing this for years and have …

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IPCC : Renewables could answer 77% of our needs

This week was published another new landmark report from the International Panel on Climate Change (IPCC). This one is focusing on renewable energies as no less than 164 scenario where studied. You may have read it, one of them notes that energy sources like solar, wind and biomass could answer up to 77 % of …

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Carbon Capture and Storage fails to deliver

You may perhaps remember it, the International Energy Agency is banking a lot on carbon capture and storage (CCS). Indeed, the IEA believes that it could account for 15 % of greenhouse gases emissions reductions. However, CleanTechnica got an interesting article on how this solution fails to deliver. One of the main reasons is that …

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On the Jevons paradox

Have you heard about the Jevons paradox ? Or the rebound effect ? Neither of them ? However they both refer to an interesting fact related to energy, efficiency and conservation. In a nutshell : we have been using more and more energy since the Industrial revolution, centuries ago, however, appliances and processes are more …

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Can the world be powered by 100% renewables ?

The WWF believes it can be done in four little decades. As they state on their website: ” All of the world’s energy needs could be provided cleanly, renewably and economically by 2050. “ They are right on one point : energy efficiency’s potential is gigantic. Indeed I am reading a book which thesis is …

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A staggering figure on energy efficiency

You know it if you have read this blog for some time : energy efficiency is the single best solution to solve all our energy and climate problems. It can be used literally everywhere and in anything and save huge amounts of money. Now, here comes Dr. Julian M Allwood from the University of Cambridge. …

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Will 2011 be the year of energy efficiency ?

Late last year GreenTech Media published an article stating that this year will be the one dedicated to energy efficiency. As you know the potential of energy savings is quite huge. As the author notes there : ” I believe that this is the year that we will really see cleantech companies which are focused …

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