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V. Kaushik and R. N. Shankar
power. There are two kinds of wind turbines based on the placement of the blades:
(a) horizontal axis wind turbine mainly deployed in large-scale use and (b) vertical
axis wind turbine [1, 2]. VAWTs are better than HAWTs due to simple assembly
and installation process, less maintenance cost, better self-starting capacity and less
noisy, less wear and tear of mechanical components, and multidirectional trapping of
air. For urban and household, the use of Savonius-type VAWT is best suited as they
can be operated at very less wind speed of 4–10 m/s and have very less installation
cost [3]. Figures 1 and 2 represent the share of top global markets in terms of Mega
Watts and show the emerging trends in the field of VAWT to meet the desirable
targets in green energy [4].
Fig. 1 Top ten cumulative installed capacity (Dec 2006) [4]
Fig. 2 Global cumulative installed capacity 1995–2006 [4]
V. Kaushik and R. N. Shankar
power. There are two kinds of wind turbines based on the placement of the blades:
(a) horizontal axis wind turbine mainly deployed in large-scale use and (b) vertical
axis wind turbine [1, 2]. VAWTs are better than HAWTs due to simple assembly
and installation process, less maintenance cost, better self-starting capacity and less
noisy, less wear and tear of mechanical components, and multidirectional trapping of
air. For urban and household, the use of Savonius-type VAWT is best suited as they
can be operated at very less wind speed of 4–10 m/s and have very less installation
cost [3]. Figures 1 and 2 represent the share of top global markets in terms of Mega
Watts and show the emerging trends in the field of VAWT to meet the desirable
targets in green energy [4].
Fig. 1 Top ten cumulative installed capacity (Dec 2006) [4]
Fig. 2 Global cumulative installed capacity 1995–2006 [4]