It said the Siemens Gamesa patent is invalid and that "neither the fully assembled Haliade-X nor its hub fall within the scope" of the patent claim. GE also has contracts to supply the turbine model to several offshore wind farms in the country. "The patent enforcement strategy as a means to protect market share is hopefully dead as a business strategy," Totaro told ENR. "Excluding competition from the market has never been a good thing for the industry," he added.