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February 20, 2007

'Green energy' Project gives Swiss the Shakes

Swiss prosecutors are investigating a green energy project after it was revealed that it caused earthquakes.

The inquiry was launched after experts confirmed that the Deep Heat Mining project to exploit geothermal energy near the north-west border city of Basel had caused tremors measuring 3.3 on the Richter scale.

The project involved injecting large quantities of pressurised water into three-mile-deep boreholes, where underground temperatures reach 200C. The super-heated water is circulated back to the surface where it is used to produce steam and drive a turbine to generate electricity.

But Geopower Basel, the company behind the scheme, was forced to stop pumping water into the hot rock layer following a series of powerful earthquakes, which were felt up to 10 miles away.

Jean Ueberschlag, the mayor of nearby Saint Louis in France, wrote to the Swiss authorities demanding a halt to the experiment. He said: "You don't have the right to play with the safety of our populations."

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Table-top Fusion, Back with a Pop

Reports that the bubble had burst for a form of cheap, table-top nuclear fusion may have been premature. Rusi Taleyarkhan, the physicist at the centre of a furore surrounding so-called bubble fusion, was last week cleared of scientific misconduct.

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January 14, 2007

N.S. Power To Test New Tidal Power Generator

N.S. Power to test new tidal power generator
Last Updated: Friday, January 12, 2007 | 5:27 PM ET

CBC News

Nova Scotia Power is looking at introducing in-stream tidal power, an alternative to placing dams across inlets or rivers to capture the energy of huge volumes of moving water.

The company has a deal with an Irish partner, which will build a test model of an in-stream tidal turbine in the Bay of Fundy, the Canadian Press reported Friday.

The one-megawatt installation, to be built by OpenHydro of Dublin, uses a different system than Nova Scotia Power's current 20-megawatt plant at Annapolis.

The existing plant harnesses the tidal action of the Bay of Fundy, site of the world’s highest tides, where a dam funnels the water into generators as it flows in and out with the tide.

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