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es muy interesante ese tipo de energía.
The future looks bright for wind energy because the world is moving away from fossil fuel energy.
What is wind turbine?
In the future, will wind turbines be everywhere?
A great advantage of using wind energy is that, unlike power generation from combustion of fossil fuels, it produces no gas emissions.
Even a small 750 kW wind turbine operating with wind speeds just above that of turbine cut-off would reduce annual emissions to the atmosphere by 1200 tonne of carbon dioxide, 6.9 tonne of sulphur dioxide and 4.3 tonne of nitrogen dioxide, compared with the equivalent power output from coal-fired generators.
Nevertheless, wind turbines and their infrastructures are substantial constructions with a short life span (around 30 years), so production of the materials used in their construction (e.g. concrete) would not be effect-free.
However, wind energy is inexhaustible and free of fuel costs. Given advanced technology, wind energy could provide up to 20% of the energy needs of the United States. This is equivalent to the amount currently provided there by nuclear power.
The main practical problem with wind turbines is their variable output. Obviously, wind speed does not match the variation of electricity demand. Wind energy suffers from intermittency of supply.
Whereas higher overall consumption of electricity in winter coincides with generally higher average wind speeds than in summer, demand varies by a factor of around two during normal days - plus the legendary power-demand surge at half time in televised sports matches.
The high capital investment in wind turbines requires that they maximize income, except when wind speed is too high or too low. That requires either complex switching between power sources or an energy storage system when wind-power output is high.
One strategy is the use of excess wind power to pump water to high-elevation hydropower reservoirs. Another is to ensure that the electricity grid accepts all power supplied by wind generation, while more controllable sources are deployed to match demand.
Wind energy is also geographically variable. In windy places, small-scale development combined with power storage devices could supply all the electricity needs of individual dwellings and small communities - an ideal environmental solution, but not an equitable one.