what factors make wind energy imperfect as an energy source?
Brainstorming: Have students engage in open discussion to think of how wind could be used as an energy source. However, if costs over the lifespan of energy projects are taken into account, wind and utility-scale solar can be the least expensive energy generating sources, according to asset management company Lazard. Overall, using wind to produce energy has fewer effects on the environment than many other energy sources. When the wind blows past a wind turbine, its blades capture the wind’s kinetic energy and rotate, turning it into mechanical energy. And since the wind is free, operational costs are nearly zero once a turbine is erected. Wind is actually a form of solar energy. Wind is an emissions-free source of energy. Making electricity directly circumvents this thermal loss. Assessment Pre-Activity Assessment. Harnessing the wind is one of the cleanest, most sustainable ways to generate electricity. wind turbine: A machine that converts the moving energy of wind into mechanical and/or electrical energy. Wind is a renewable energy source. Wind is a domestic source of energy. The amount of wind electricity generation has grown significantly in the past 30 years. Over the past 10 years, U.S. wind power capacity has grown 15% per year, and wind is now the largest source of renewable power in the United States. This form of energy generation has become increasingly popular in recent years. Estimating your wind resource and checking your local permitting and zoning requirements are key factors to consider in order to pursue this option. It offers much the same benefits that many other alternative fuel sources do in that it makes use of a renewable source and generates no waste. Wind turbines do not release emissions that can pollute the air or water (with rare exceptions), and they do not require water for cooling. This rotation turns an internal shaft connected to a gearbox, which increases the speed of rotation by a factor of 100. Electricity generation with wind. Wind is a clean source of renewable energy that produces no air or water pollution. Using coal, over 60% of the energy in the coal is lost as waste heat. Wind: Harnessing the wind as a source of energy started more than 7,000 years ago. In fact the main energy losses with wind power comes from the energy used to make the turbines in the first place. Remind them that no idea or suggestion is "silly." Multiple studies have concluded that wind has an energy return on energy invested of around 20. Small wind systems can reduce your energy-costs by as much as 90 percent, but they do require careful planning. The nation's wind supply is abundant and inexhaustible. It's sustainable. 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