Features
24 January 2013
Silicon wafers destined to become photovoltaic cells can take a bruising through assembly lines, as they are oxidised, annealed, purified, diffused, etched, and layered to reach their destinies as efficient converters of the sun's rays into useful electricity, writes Bill Scanlon from US National Renewable Energy Laboratory.
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11 January 2013
2012 was a seminal year for three industries that share some fast moving technologies and vertical markets, Electronic Security, Energy Management and the emerging Smart Grid, writes Allan McHale, author of smart grid blog Memoori.
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4 January 2013
It takes outside-the-box thinking to outsmart the solar spectrum and set a world record for solar cell efficiency. The solar spectrum has boundaries and immutable rules. No matter how much solar cell manufacturers want to bend those rules, they can't. Bill Scanlon from US National Renewable Energy Laboratory asks, how can we make a solar cell that has a higher efficiency than the rules allow?
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2 January 2013
No doubt the Indian solar market has strong fundamentals; irradiation is very high, power is expensive and in short supply and solar is getting cheaper. In addition, there are now a host of new policies promising upwards of 4GW of new solar. On the other hand, there are only a few players really enjoying themselves. Tier 1 Chinese module manufacturers find price pressures too high – as do many EPCs. Project developers still face difficulties in getting their projects financed. The question is; does anyone earn any money? The answer is no, but those who are ready to try new approaches will do so in future, according to Tobias Engelmeier, founder and managing director of Bridge to India.
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20 December 2012
The traditionally conservative mining sector is beginning to invest heavily into renewables and efficiency processes, driven by rising costs, stakeholder pressures and tightening regulations.
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17 December 2012
Development needs data: water security, oceans governance and food security need data, information, knowledge, networks and imagination to shift power in the public interest, according to James Cameron, chairman of Climate Change Capital, who shares his perspective on climate change.
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4 December 2012
One year ago Germany decided to quit producing nuclear energy by 2022. Since nuclear power plants are a central pillar the German energy mix, contributing some 22.5 per cent to the entire electricity output in 2010, this means that until 2022 the equivalent of 140.6 TWh has to be replaced by other sources, writes Manfred Jacobi, CEO of consultancy firm VMIS Energy.
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3 December 2012
Germany´s decision to quit electricity production from nuclear power plants by 2022 raises a number of challenging questions. How big is the task to replace all existing nuclear capacities by renewables and/or conventional power plants? Which alternatives are available and what is their potential? And, Manfred Jacobi, CEO of consultancy firm VMIS Energy asks, what consequences might be expected by consumers?
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26 November 2012
Climate chaos, natural resource scarcity, demographic changes and macro economic burdens are challenging governments, especially urban areas, to deal with massive infrastructure issues, writes Ben Goldsmith, partner at WHEB Partners.
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21 November 2012
While high-profile bankruptcies in cleantech companies such as Solyndra are denting investor confidence in green markets, Tesla Motors tells NewNet how since its initial public offering (IPO) it has gone from strength to strength and is now able to pay back its $465m US loan early as it moves towards profitability.
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