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20 Aug 09

A new generation of wind turbines helps battle rising energy costs | Technology | The Guardian

  • Wind turbines came back on Gregg's agenda when he realised that hot-water tank heater elements don't mind variable voltages or frequencies. "That's why we can make it cheaply and why it performs well because we are not handcuffed by the necessity to deliver 240V 50Hz," he says.
03 Jul 09

Interactions interview « Adam Greenfield’s Speedbird

  • The legal scholar Eben Moglen has identified three elements of privacy: anonymity, secrecy and most importantly autonomy.
  • ambient situational awareness to lower decision costs – that is, to lower the information costs associated with arriving at a choice presented to you, and at the same time mitigate the opportunity costs of having committed yourself to a course of action. When given some kind of real-time overview of all of the options available to you in a given time, place and context – and especially if that comes wrapped up in some kind of visualization that makes anomaly detection a matter of instantaneous gestalt, to be grasped in a single glance – your personal autonomy is tremendously enhanced.
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23 Jun 09

Renewable energy: Hot tub technology to the rescue? | Technology | The Guardian

  • A tank with an immersion heater may be just an oversized kettle, but there are thought to be around 19m in Britain's homes, which collectively have the ­capacity to store huge amounts of energy as hot water. And this could be key to achieving an almost wholly renewable electricity supply.
  • heaters could be switched on and off rapidly to compensate for the erratic output of wind turbines and solar panels, each heater controlled by a gadget that responds to signals sent through the electricity grid
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02 Mar 09

Clean Coal: It's Not a Misnomer, But is it the Answer? | Fast Company

Conclusion:
We need clean coal in the mix while even safer alternate-energy technologies such as wind, solar, geothermal, and biomass prove themselves. Make no mistake: It's a stopgap measure. It's hard to see how keeping coal as "the backbone of the U.S. electricity system for decades if not centuries," as the coal industry suggests triumphantly, is a good idea in the long run

www.fastcompany.com/...een-business-mr-right-now.html - Preview

environment green energy

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