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  Wind Power and Hybrid Systems
Multiple sources for maximum energy
 Page at a glance
Using sun and wind to generate power
Optimal solution, lower cost
The SunTechnics wind turbine
Hybrid systems are usually a combination of photovoltaics with wind turbines and/or generators running on diesel or biofuels. Power generated by the PV array during the day is stored in the battery bank through an energy manager, which controls the complete system.

The most common hybrid system involves Photovoltaic cells with fossil fuel generators approximately 78%

The Indian wind energy programme is one of the largest in the world, having an installed wind capacity of over 800MW.

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SunTechnics' hybrid systems
SunTechnics' hybrid systems make optimal use of sunlight and wind speeds - the two main resources readily available in the South Asian sub-continent. When the solar resource is low during the monsoon, the wind is quite strong and vice versa. The resultant hybrid system thus offers an optimal solution at a substantially lower cost. It is ideal for electrification of remote villages in India.

SunTechnics India is equipped to offer reliable off-grid and hybrid solutions for all energy needs for telecom connectivity, especially rural connectivity, where powering critical loads are often a challenge. Diesel generators are expensive to run, and may also require frequent maintenance support. A judicious mix of solar and other renewable technologies, coupled with a diesel generator / grid, can offer a techno-commercially viable solution that will power the backbone of rural connectivity.

How does it work?
The SunTechnics wind generator starts generating power when wind reaches the cut-in speed of 3m/s and the output is stored in the battery bank. This energy is drawn by the electrical loads through the inverter, which converts DC power into AC power. The inverter has in-built protection against short-circuit, overheating, low battery voltage and overload. The battery bank is designed to feed the loads up to a certain number of days with no sun or wind, depending upon the system requirement.

The wind turbine is self-regulated with a patented pitch control mechanism which guarantees a stable energy output during strong winds. It also ensures storm protection and is much lighter than conventional small wind turbines. During very windy periods, the excess energy is dissipated through a dump load, which can be used for heating purposes.

SunTechnics 7500 DC
The SunTechnics Wind Turbine STT 7500 DC is a very robust small wind turbine adapted for stand-alone power supply. It is,
Designed to withstand extreme climates
Equipped with a bi-directional inverter hybrid energy manager
Can be integrated into a hybrid with different energy sources such as PV or diesel generators
Requires very little maintenance and can be easily assembled and installed on site
Typical applications range from house or village electrification, small enterprises to water pumping
Wind turbine and solar panels

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