New blade retrofit boosts wind turbine output Wind start-up Evoblade and Deutsche Windtechnik created a retrofittable spoiler that increased output from a 1.5MW Neg Micon turbine by 6% in recent testing by Craig Richard Evobalde said that the spoiler can be glued on without needing to remove the blade from the hub, reducing work and costs Sign in to continue Breaking industry news and email bulletins Analysis of the lastest trends to help you make informed decisions Searchable content archive dating back to 1994