Cleantech

Brazilian wind energy is really cheap

So cheap that it is disrupting the Brazilian energy market as Cleantechnica reported : ” Wind farms have won 55% of contracts awarded by Brazil’s national energy agency (…) and wind power now costs about 4.5 cents/kWh in the country. “ This is really really cheap as generally wholesale prices in Europe are three to […]

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IEA : Cleantech is progressing too slowly

In another wake up call, the prestigious Paris-based International Energy Agency has called for a significant increase to clean up the global energy system as the effort ” has stalled “. As the IEA Executive Director Maria van der Hoeven stated : “Despite much talk by world leaders, and despite a boom in renewable energy

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Air pollution kills more than HIV and Malaria combined

Here is another article I wrote  for Cleantechies. It is on air pollution, a widespread phenomenon that is stricking both developed and developing nations all around the world. As one can see, it is also a most killing one : ” The combustion of fossil fuels are a huge health hazard as to a recent

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Portugal : Renewables supplied 70 percent of electricity

According to the Portuguese utility REN, renewable energies supplied a massive 70% of domestic consumption of electricity in the first quarter of 2013. As the press release notes, this is due to particularly favorable conditions. Hydro supplied 37 percent of the total while wind provided 27 percent. Last year, both energy sources only accounted for

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The climate movement can succeed. In time ?

US advisor on sustainability and author Paul Gilding recently published on his blog a compelling, fantastic and stunning piece on how victory is at hand for the climate movement. You might believe this is some hyper optimistic hype. However, Gilding keeps piling arguments in his article ; arguments that I have developed on this very

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Teen boost efficiency of algae-based biofuels

What were you doing when you were 17-year old ? Sara Volz, A Colorado, USA, teen created a biofuel lab in her bedroom. Even better, she developed more efficient algae that produce higher oil content just by selecting them artificially. This is seen as an important boost to algae based biofuels. It was done with

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Worth an article – my February 2013 tweets

I have been committed since January 2007 to bring you each month a selection of the latest headlines and best researches on sustainable development, climate change and the world energy sector. However, I don’t blog as much as I would like to and generally write around 25 posts per month. But many more news are

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Graphene could bring solar PV efficiency to 60%

According to TreeHugger, graphene could offer 60% solar cell efficiency if it were to replace silicon in PV panels. As they note : ” Researchers from the Institute of Photonic Sciences in Spain have just published results from their experiments.” ” While their results so far will probably be more useful to make better image

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