All articles by Heidi Vella

  1. In-pipe power – developing hydropower from urban water-systems

    In every Western urban city, gallons of high pressure water relentlessly shoots and flows around a hidden labyrinth of water…
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    9 Apr
  2. The Grand Renaissance Dam – Ethiopia’s greatest risk

    These people live near Lake Turkana, Kenya. Ethiopian dams could dry up the lake In April 2011 Ethiopia unveiled its…
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    24 Feb
  3. Wind turbine bases: letting concrete and gravity do the work

    SeaBreeze is a concrete gravity base, which has been developed over ten years, that utilises both gravity and buoyancy As…
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    15 Jan
  4. Video feature: floating solar power takes to the seas – SUNDy and Hydrélio

    SUNDy combines as many as 4,200 thin-film 560W solar panels It’s fair to say the solar power industry has kicked…
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    6 Jan
  5. Marine-life and offshore energy – can new technology help the two coexist?

    With little scope for solar power in the UK, there is no doubt that much of the country’s renewable energy…
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    7 Oct
  6. Extracting liquid fuel from air – pipe dream or the future of renewable energy?

    Turning air and sunshine into affordable renewable fuel sounds like an improbable and costly idea. Not according to researchers at…
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    19 Sep

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