Energetx Composites, a progeny of long-time yacht builder S2 Yachts, is busy carving out a niche in wind turbine blade manufacturing. The Holland, Mich., company was formed in 2008 when S2 Yachts decided to diversify as the recession began to affect yacht sales. In addition to wind blades, Energetx builds structural composites for the defense, aerospace and transportation markets.