== Onshore and Offshore Wind Turbines ==
{|border="2" cellspacing="0" cellpadding="4" width="100%"
| align = "center" bgcolor = "#83caff"| '''Onshore wind turbines'''
| align = "center" bgcolor = "#83caff"| '''Offshore wind turbines'''
|-
| Advantages
* It requires cheaper foundations
* Easily intergrated with the electrical- grid network
* cheaper Installation and access during the construction phase.
* It can be operated and maintained easily and cheaply
Source:[http://www.house-energy.com/Wind/Offshore-Onshore.htm Onshore Vs Offshore Wind Turbines]
| These are two types, namely Near shore and Off shore.
Advantages:
* The roughness of the water surface is very low Wind and obstacles to the wind are less.
so, large turbines can be installed
* Noise pollution is also not a factor because these are too far from shores
* Less affected to turbulance in wind and low wind shear<br/>
|-
| Disadvantages
* Neagtive visual impact or noise.
* Limted avaliability of lands
* Restrictions asscociated with obstructions like buildings, mountains, etc.
* Noise pollution
* Afftected to more turbulance
Sources:[http://library.thinkquest.org/06aug/01335/wind%20Power.htm Wind Power],[http://www.ehow.com/list_5938067_types-wind-farms-there_.html Types of Wind Farms]
| Disadvantages:
* Installing offshore windturbines is much more complex and costly
* Connection to the utility grid is also much more complex and expensive
* Operation and maintanances is also a complex task with off shore wind turbines
Source:[http://www.offshorewindenergy.org/ca-owee/indexpages/Offshore_technology.php?file=offtech_p2.php Offshore Technology]
|-
| align = "center"|[[Image:Onshore.jpeg|center|thumb|Fig 5(a) [http://www.eco-trees.org/europes-biggest-onshore-wind-farm-goes-online/ Onshore Wind turbines]]]
| align = "center"|[[Image:offshore.jpeg|center|thumb|Fig5(b) [http://www.house-energy.com/Wind/Offshore-Onshore.htm Offshore wind turbines]]]
|}
==Parts of a Horizontal Axis Wind Turbine==
