Wind-powered Electricity
Affordable, Renewable, Abundant, Domestic, and Clean
The Future of Wind Energy
The fact of the matter is that fossil fuels will run out one day and we need to be prepared for that when it happens. Wind energy will probably not be able to satisfy all of the worlds energy needs but it will contribute a percentage of its electricity combined with other renewable sources to reduce our dependence on fossil fuels. One day wind energy will find a way to become more environmentally friendly and become more widely used source of electricity all around the world.
Pros
- Renewable energy
Doesn't produce pollutants or require any harmful chemicals
- Wind is free
- Their sleek design is considered modern
- Reduces our need to rely on foreign countries for fossil fuels
Cons
- Wind doesnt blow consistently
- Severe storms can cause damage
- Quite noise; sound averages 60 decibels
- May be hazardous to wildlife
- All about location
Wind Power
3 main types of wind turbines
Horizontal axis
The most common turbine that resemble fans and typically have 3 blades. The blades turn a rotor shaft that is connected to an electrical generator, and that generator turns the energy into electricity.
Vertical axis Savonius design
the Savonius features a center rotating shaft, which usually has a number of aerofoils. Doesn't need a separate starting motor, otherwise it is very similar to the Darrieus design.
Vertical axis Darrieus design
two or more steel blades curve up from the bottom and meet again at the top of the center shaft. The darrieus design can accommodate different wind speeds and directions.