Library filed under Technology from UK
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.
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.
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.
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.
The future of green energy has been thrown into doubt after a new report revealed that the region's biggest windfarm was producing less than a third of the electricity it should be.
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.
ROBIN Ball (Letters, August 5) has been a victim of the wind-energy deceivers. Those sails in Germany were not producing any energy at all.
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.
"By being 25 miles offshore it doesn’t have any visual impact and the wind is steadier there," he added.
RESIDENTS in conservation areas could be allowed to erect rooftop wind turbines without planning permission, under plans to encourage people to generate renewable energy. The move could see some of Scotland’s most historic skylines blighted by the generators, which are the size of a satellite dish.
A Scottish firm behind a massive wave power scheme in Portugal has claimed that Scotland is on the verge of similar developments.
As Britain's longest river with the second biggest tidal range in the world, the River Severn has huge potential as a renewable resource. It is estimated that if the water's power could be harnessed, it could account for as much as 10% of the UK's electricity needs.
LONDON (AFX) - Talisman Energy (UK) Ltd, a wholly-owned unit of Talisman Energy Inc, said it has received UK government approval for the development of a deepwater wind farm demonstration and research project adjacent to its Beatrice oilfield, 25 kilometres off the east coast of Scotland.
Researchers from the University of Southampton have successfully built an electric motor which is powered by flowing water.
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.
If the Government endorses a programme to build new nuclear generating plants, there are a number of measures that might be taken to improve the planning system. These measures could have implications for a number of forms of development.
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.
Once in place, the clean coal boiler is expected to save around 500,000 tonnes of carbon dioxide a year, equivalent to the development of 230 megawatts of wind farm capacity.
Wind energy is expected to play a big part in meeting this target, but doubts remain over the cost of turbines and the difficulty in finding suitable locations for large-scale wind farm projects.
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.