Search results: 52 results

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• From utopia to urban ecosystems

  Alternatives magazine n° 22, 4th quarter 2009 Category: Perpectives

  From Milet in Greece to Brasilia in Brazil, politicians have tried to build utopian cities embodying an ideal social organization. Today, these dream cities must also preserve the environment. That is not as difficult … Read more

• A new laboratory for utopia: the United Arab Emirates

  Alternatives magazine n° 22, 4th quarter 2009 Category: Perpectives

  The ideal cities of tomorrow may well be found in the desert. In the United Arab Emirates, for example, where in 2006 Abu Dhabi announced its plan to invest 10 billion euros in a model eco-friendly city called Masdar (“… Read more

• What about the effects on the environment?

  Alternatives magazine n° 21, 4th quarter 2009 Category: Perpectives

  At 5.8 GHz, microwaves from space fall within the range of FM radio frequencies and conventional television. They are not likely to change the molecular structure of living organisms, unlike ultraviolet rays, X-rays and… Read more

• Panel assembly stations as big as Manhattan !

  Alternatives magazine n° 21, 4th quarter 2009 Category: Perpectives

  Large assemblies of photovoltaic panels concentrate reflected solar light with clusters of mirrors, producing electrical energy that a powerful scanning electron transmitter sends to earth in the form of directional … Read more

• Can we capture energy in space?

  Alternatives magazine n° 21, 4th quarter 2009 Category: Perpectives

  The vagaries of the weather here on earth and the nightly blackout limit the power we can get from solar energy. But this energy could take on a whole new dimension if it can be captured in space 24 hours a day by … Read more

• Panel assembly stations as big as Manhattan !

  Alternatives magazine n° 21, 4th quarter 2009 Category: Perpectives

  Large assemblies of photovoltaic panels concentrate reflected solar light with clusters of mirrors, producing electrical energy that a powerful scanning electron transmitter sends to earth in the form of directional … Read more

• Smart Grids: a new era of interactivity between power consumers and power suppliers

  Alternatives magazine n° 20, 2nd quarter 2009 Category: Perpectives

  An ever growing number of suppliers, new opportunities for consumers to produce energy themselves... the complexity of the electricity market is growing. New interactive tools are available to manage these developments,… Read more

• Lessons from Italy

  Alternatives magazine n° 20, 2nd quarter 2009 Category: Perpectives

  Italy was the first European country to deploy a vast network of smart meters. Enel, its first utility, equipped 30 million customers with them. In 2000, Enel launched a major push to install the meters throughout the … Read more

• Line losses: unnecessary, expensive kilowatts that add to pollution

  Alternatives magazine n° 19, 3rd quarter 2008 Category: Perpectives

  In France, line losses from Joule effect power dissipation on high voltage lines (50 kV or more) and very high voltage lines (225 kV–400 kV) averaged 2.5% of total power consumption in 2006, or approximately 11.5 TWh … Read more

• First industrial application of superconductivity

  Alternatives magazine n° 19, 3rd quarter 2008 Category: Perpectives

  Long considered a lab experiment, superconductivity has been implemented on a production scale for the first time in a spectacular project: a 600-meter, 138-kV underground cable was installed in New York City to … Read more

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