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Repowering onshore wind farms: A technical and environmental exploration of foundation reuse

Abstract

With the need to increase energy generation from renewable sources and a desire to move towards subsidy-free wind energy generation, the industry is considering repowering existing wind farms to create systems which generate more energy per unit area and wind speed. This will likely involve an increase in turbine generation capacity and size. This report considers whether existing wind turbine generator (WTG) foundations can be re-used when the turbine is replaced.