The world is moving towards renewable source of energy like solar energy, wind energy, hydropower, geothermal, etc. which can be replenished. Wind turbines are now being used in many places over vast landscapes especially on hilly areas. The wind turbine consists of 3 main parts: the rotor blades, the shaft and the generator. The design of blades makes it rotate against wind current. The rotators have shaft at its centre which spins with their rotations. This mechanical energy generates power for generator, this power is converted into electrical energy and provided to homes. If more energy is generated it is fed back to the power grid.Mainly based on energy production there are three types of wind energy :
- Utility-scale windturbines These wind turbines are very large scale and generate power in terms of megawatts with right conditions.They deliver energy to power grid which gets distributed to users by power system operators. These are mostly used by the government operated electrical boards.
- Distributed windturbines A small wind turbines generates electrical energy below 100 kilowatts that can be directly utilised by the userfor household purposes or small business and it does not require any connection to the grid. Many small scale industries gets benefits from this.
- Offshore windturbines Wind turbines that are found vertically fixed in water bodies usually on the continental shelf. These turbines are larger than land based turbines and can generate more power than land turbines as they are constantly in atmosphere of waves. This is a very useful approach for locality near sea.
Now, this renewable source of energy can be utilised well to power home with correct placement based on factors like usual wind speed, height of blades, safe distance, quality of material etc. The over-generated electricity can be stored for future use purposes. It have its own benefits and downsides which are described below :-
• It is free and totally renewable.
• The cost can be replenished with time.
• If over production happens and this electricity is sent to power company then they pay the owner.
• There are government schemes as promotional policies to support this technology like financial incentives from the state government for those who install wind turbines.
• Cost is high and needs open land area for its installation.
• Cannot be installed in a location with low wind speed.
• It is still not very efficient.
• Blades can be injurious to local birds.
• Maintenance can be a tedious task.
Considering all the facts and scenarios, people who live in areas having above average regular wind current and enough land for the accommodation of the wind turbine can work for betterment of the environment by investing in wind energy, with proper maintenance, a wind turbine will return back the value with coming years.