In Louisiana bayou country a major builder of supply and service vessels for deep water oil drillers is building a new kind of vessel — one that will serve the offshore wind industry. Louisiana shipbuilding giant Edison Chouest Offshore is building the Eco Edison for Orsted, a Danish firm that builds and operates wind farms worldwide, and Eversource, a New England energy provider. The ship will serve as a floating hotel for U.S. offshore wind technicians and a warehouse for their tools as they operate and maintain wind farms.