The earliest wind turbine that was able to generate electricity dates as far back as the 1880s, although today's modern windmills bear no resemblance to those early models. The windmill pictured is able to operate during spells of low wind, due to its modern design and efficient generator engine / gearbox.
Relevant image keywords:
aerodynamic, agricultural land, agriculture, alternative energy, carbon footprint, concepts and ideas, countryside, crop, electrical power, electricity, emissions, energy, environmental, environmental conservation, environmentally friendly, equipment, farm, field, fuel, fuel and power generation, generating, generator, ghg, global warming, grass, green, green power, greenhouse gas, hill, industry, kinetic energy, landscape, manufacturing equipment, mast, meadow, metal, mill, motion, pasture, power, power supply, propellor, propellor blades, renewable, renewable energy, rotating, service, sky, spinning, spinning round, summer, technology, three blades, turbine, turning, vertical, weather, white, wind, wind farm, wind power, wind turbine, windmill
