WHAT IS THE CURRENT SCENARIO OF WIND ENERGY IN INDIA?
Wind Energy in India has grown tremendously over the last two decades. As a result of this boom, the wind potential in most major wind sites has been tapped and a point of saturation has been reached. Presently setting up a wind farm to harvest energy from wind requires huge capital investment and involves a rat race for wind rich land. This has led to a situation where only large players operate and benefit from technological advancements in this sector.
WHAT IS VAWT ?
Vertical Axis Wind Turbines are wind turbines that rotate about a vertical axis. Generally, we are used to seeing horizontal axis wind turbines (HAWTs) which have been the norm of wind-energy for decades now. But slowly, Vertical Axis turbines are capturing the imagination of many innovators in the field.
WHY VAWT NOW ?
VAWTs have historically been the understated siblings of the HAWTs. It has been impossible to design good VAWTs over the years because they were generally less efficient and more expensive than HAWTs. But the growth of computation technology and computer-aided engineering has helped people worldwide design better VAWTs over the last few years. VAWT is an up and coming, exciting technology in the field of wind energy.
WHAT ARE THE ADVANTAGES OF VAWTs ?
VAWTs have been proven to generate more power per unit land area than HAWTs; this is because micrositing of VAWTs can be done in a way such that there is a better use of the wind rich land. Also, smaller VAWTs, like SMART are easy to transport and maintain and demand fairly inexpensive captial costs.
CHALLENGES IN VAWT TECHNOLOGY ?
Vertical Axis Turbines have historically had a problem with generation efficiency, structural stability, generator and gearbox configurations and crucially, robust braking. Most of these challenges have been overcome in HAWTs, and these challenges need to be overcome in order to deliver a commerically viable VAWT.
WHAT IS SPECIAL ABOUT SMART ?
- SMART taps all the advantages of VAWTs
- Two models to operate in opposite directions (Clockwise and Anti-clockwise) work as a couple.
- Cuts in at low wind speed and also performs in higher wind speeds.
- Innovations in Rotor, Drive, Motor and Control Systems design.
- Includes first of its kind Aerodynamic VAWT Braking Mechanism.
- Innovative erection mechanism for crane-free installation, thus minimizing the access requirement to erection site of the turbine.
- Modular design for ease of transport.
- Technology innovation scalable for offshore wind