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CHEYENNE, Wyo. - Recent howling winds have been like sweet music to one local company, which says its new vertical wind turbine is substantially more efficient than traditional propeller designs.
Officials at Terra Moya Aqua Inc. unveiled their new turbine Friday, saying the design already had attracted interest from both domestic and foreign buyers.
"We have people nationally and internationally who want to buy this turbine now," said Ron Taylor, TMA's founder and chief executive officer.
"One of the new initiatives involved using carbon fibre instead of fibreglass as the material for a number of components in the blade spar. In fact, the new 44-metre blades for the V90 rotor are lighter than the 39-metre blades"
The weight of the turbine has an appreciable influence on factors such as material consumption, production costs, transport costs and the erection process itself. In addition, the weight of a turbine is often crucial to its suitability for offshore sites.
Today, customers are looking for the best possible combination of price, weight and efficiency so as to keep costs per kWh as low as possible.
Originally posted by Hellmutt
Hydro: Floating windmills
A demonstration project is currently being planned based on wind turbines with a power generation capacity of 3 megawatt (MW). The windmills will reach 80 meters above the sea’s surface and will have a rotor diameter of about 90 meters.
According to plans, the demonstration project will start operating in 2007. We eventually envision wind turbines with a power capacity of 5 MW and a rotor diameter of approximately 120 meters.
“The future goal is to have large-scale offshore wind parks with up to 200 turbines capable of producing up to 4 terawatt hours (TWh) per year and delivering renewable electricity to both offshore and onshore activities.
Hydro: Floating windmill positioned off Karmoy
Test results demonstrate that offshore windmills will be able to withstand very rough conditions.
"Deep waters close to land, as well the proximity of established shipyards and supplier industries, make the sea off Karmoy on the west coast of Norway the perfect location for the world's first floating windmill," said Alexandra Bech Gjorv, head of the New Energy unit in Hydro, at the company's energy seminar in Bergen on Wednesday.
This autumn Hydro tested how floating windmills will perform in different wind and wave conditions. The trials were conducted in the ocean basin of Sintef Marintek in Trondheim and results show that the concept can withstand some very rough weather conditions. Hydro has therefore decided to proceed with its research and demonstration project, called Hywind.
The floating windmill will extend 120 metres beneath the surface and therefore requires a water depth of at least 200 metres. Ocean depths meeting this requirement are found 10 to 15 kilometres west of Karmoy.