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A 750 kW wind turbine is being developed by Swedish company Zephyr, which currently markets a two-bladed, 250 kW self-regulated turbine with passive pitch control (Windpower Monthly, February 1994). The first Zephyr 750 kW has been ordered by Hushällningssällskapet in Halland, a regional agency for the development of the countryside. Swedish energy authority Nutek will pay 50% of its cost. Zephyr is not just scaling up its 250 kW, although the basic two bladed, passive pitch concept is being retained. Blade material is being reconsidered (the 250 kW has heavy steel blades) along with other components. Variable speed is also a new option, says Zephyr's Lennart Nilsson.

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