Energy

Image: Wind Share of Electricity Generation in Leading Countries, 2013

earthpolicy.org - May 27th 2014 - J. Matthew Roney

Denmark produced one third of its electricity from the wind in 2013. In no other country has wind’s share of annual electricity generation yet topped 30 percent. But the Danes are not stopping there—they are eyeing a goal of 50 percent wind by 2020, with most of the needed expansion coming from offshore wind farms.

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Image: The tin-based perovskite layer acts as an efficient sunlight absorber that is sandwiched between two electric charge transport layers for conducting electricity to the outside world.

economictimes.indiatimes.com - May 5th, 2014 - Mercouri G. Kanatzidis

In a breakthrough, scientists have developed a new low cost, efficient and environment-friendly solar cell that uses tin instead of the hazardous lead.

Researchers from Northwestern University are among the first to create a solar cell that uses a structure called perovskite, with tin as the light-absorbing material instead of lead.

"Exculding the use of lead is a quantum leap in the process of creating a very promising type of solar cell called a perovskite," said Mercouri G Kanatzidis, an inorganic chemist with expertise in dealing with tin.

Image: A street light in front of the EDF London Eye. Photograph: Andrew Winning/Reuters

theguardian.com - April 25th, 2014 - Terry Macalister

Boris Johnson has announced plans for the London mayor's office to become the UK's latest electricity supplier with an official launch next year of a scheme aimed at lowering bills and bolstering the capital's energy independence.

London will be the first public authority to receive a "junior" electricity licence from industry regulator Ofgem as part of the plan to produce 25% of the capital's power from local sources by 2025.

Energy for London, as the scheme is likely to be named, will initially buy power from small-scale generators owned by London boroughs and public bodies and then sell it on to Transport for London and the Metropolitan police.

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'The negative impacts of Keystone XL will affect the whole world, our shared world, the only world we have.' Photograph: Sue Ogrocki/AP

We must stop climate change. And we can, if we use the tactics that worked in South Africa against the worst carbon emitters

theguardian.com
by Desmond Tutu
April 10, 2014

Twenty-five years ago people could be excused for not knowing much, or doing much, about climate change. Today we have no excuse. No more can it be dismissed as science fiction; we are already feeling the effects.

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