World’s First Offshore Wind Facility Completely Dismantled

DONG Energy announced its Vindeby Offshore Wind Farm, the first offshore wind farm in the world, has been dismantled.

The company established Vindeby as a demonstration project to prove offshore energy generation was possible. However, after 25 years the company determined the 11 wind turbines were worn down.

Blades, nacelle and the towers were dismantled individually by a mobile crane and placed on board a jack-up vessel. The concrete foundations were broken down with hydraulic demolition shears, a hydraulic hammer and milling tools.

“This is the first time we’re dismantling an offshore wind farm, but luckily, we’ve been able to draw on our vast experience from constructing offshore wind farms and working offshore,” said Leif Winther, Senior Lead Business Developer in DONG Energy. “In cooperation with the winning contractors, we developed the dismantling method and entered a long process with the authorities to obtain all necessary permits.”

Many of the components will be reused as spare parts for other wind turbines, while the blades will be reused in a noise barrier concept and a research project at DTU Risø. One turbine will become part of the exhibition at the Danish Museum of Energy.

Over its lifetime, Vindeby generated 243 GWh of power from its 11 turbines. Each of the turbines had a capacity of 0.45 MW, and had a blade length of 17 meters and a hub height of 37.5 meters.

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Established in 1896, Power Engineering magazine is the comprehensive voice of the power generation industry that provides readers with the critical information needed to remain efficient and competitive in today's market. For three years in a row, Power Engineering has been named the most read and useful magazine in the power industry. Power Engineering Online provides up-to-the-minute energy news, stock quotes, five years of searchable editorial archives, power generation conference schedule and details, and an industry product and services guide. Power Engineering is part of the PennWell energy group, the largest U.S. publisher of electric power industry books, directories, maps and conferences.

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