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alternative, america, blade, california, clean, desert, ecology, electric, electricity, energy, environment, farm, field, generation, generator, grid, industrial, industry, innovation, lattice tower, lattice wind turbine towers, low angle view, mill, power, production, propeller, renewable, renewable energy, resource, sky, supply, sustainable, technology, tower, turbine, two, usa, valley, wind, wind farm, wind turbine, wind turbines, windfarm, windmill, windpower,