The Wind Turbine Arms Race

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Siemens says its B75 wind turbine blade is the world’s largest fiberglass component cast in one piece. It will be used first used later this year off the coast of Denmark. (Photos by Siemens.)

Siemens says its B75 wind turbine blade is the world’s largest fiberglass component cast in one piece. It will be used first used later this year off the coast of Denmark. (Photos by Siemens.)