Pushing the technology limits

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Beyond the fuss of its divorce with utility Iberdrola, EHN continues trail blazing in wind power, not just in scale but also in scope. The company's Llanas de Codés wind plant in Navarra region now stands as a turbine technology showcase of megawatt machines and lower-rated direct drive turbines.

Twenty 1.3 MW turbines designed and developed by EHN between 2000-2001 are now going up at the site. The first seven are online and completion of the remainder is expected by the end of November. EHN's Jose Arrieta will not confirm if the company will continue to produce the machines. But he has always been unequivocal on EHN's motive behind its move into wind turbine manufacture: to stir up other manufacturers into providing machines tailor-made to EHN requirements and Spain's complex winds (Windpower Monthly, July 2001).

The 20 units follow testing three prototypes that have gone up since 2000: one for windy sites and two for medium wind speeds. EHN's turbines stand next to 12 GE Wind, 1.5 MW turbines. Together they form part of a handful of megawatt machines to have gone up in Spain to date.

Meanwhile, all 28 of EHN's Lagerwey 750 kW machines from the Netherlands have come online, making EHN only the second company to operate series-produced direct drive technology in the whole of mainland Spain. The first was Burgersa, which developed 25 MW of German Enercon direct drive machines in the province of Burgos.

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