Library filed under Technology from UK

Tough test for wind power

One of the two biggest offshore windfarms in Britain when it opened two years ago, Scroby Sands will find itself dwarfed by three-times-the-size Robin Rigg when it is built at Solway Firth, and further down the line, windfarms 15 times the size are envisaged further out to sea. But for technology to advance that rapidly, vast investment that will dwarf the £75m spent on Scroby Sands, will be required, so the eyes of the industry really are on the Norfolk coastline.
30 Aug 2006

New green energy bridge proposed

A system of causeways that doubles as a renewable energy scheme has been proposed as a new link between North Uist and Harris in the Western Isles. Offshore wind turbines would be installed next to the bridge, which would have built-in tidal generators.
23 Aug 2006

A blow for power in the North Sea

The 280ft towers will stand in up to 150ft of water and will generate enough electricity to meet up to 75% of the needs of the oilfield which pumps 3500 barrels of oil ashore a day. This £35m, five-year pilot could be the first step towards establishing a 200-turbine farm on the site which could meet 20% of Scotland's energy needs.
22 Aug 2006

Farmers to 'plant' mini wind turbines

Thousands of wind turbines could be "planted" in hedgerows on farmers' land in a new £200m energy scheme. Proven Energy, a Scottish wind turbine manufacturer, claims that the miniature turbines - at 14.9m tall - will be less obtrusive than the much taller, traditional machines.
20 Aug 2006

Time has come for tidal energy

One of the knocks against "green" energy is that its generating capacity tends to be too intermittent. When the wind doesn't blow, it pulls the plug on windpower. And solar panels won't collect energy once the sun goes down. But a green energy source that is predictable is tidal power. Charts accurately reveal when tides ebb and flow.
13 Aug 2006

Energy From the Restless Sea

A group of entrepreneurs is harnessing the perpetual motion of the ocean and turning it into a commodity in high demand: energy. Right now, machines of various shapes and sizes are being tested off shores from the North Sea to the Pacific — one may even be coming to the East River in New York State this fall — to see how they capture waves and tides and create marine energy.
3 Aug 2006

Radical turbine aims to take wind power to towns and cities

The designers say they may have overcome two drawbacks of traditional turbines. The turbine's triple helix form and vertical axis are said to make it almost silent, and it is believed to perform better in urban areas, where wind direction can vary by the minute. While there are other vertical-axis turbines, this is believed to be the first with three blades.
2 Jun 2006

The allure of deep-water wind power

Compared to conventional shallow water offshore wind farms that cost about $2 million per MW installed, the fixed-pile foundation Talisman project at $5.8 million per MW is almost three times as expensive and prohibitively uneconomical in the near term.
1 Jun 2006

Tidal energy heads to market

Advocates of tidal energy say it is more reliable than the other marine technology, wave power. Unlike wave - and wind - farms, tides are predictable. The devices use technology similar to wind farms or hydropower, with underwater turbines being driven by the force of the tide to generate electricity.
22 May 2006
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