Remarks of Solar-wind Hybrid street light system

Accept solar and wind energy and transfer them to electricity in one system or supplying current to lights to brilliant is so called “Solar-wind hybrid street light system “.Adopt this system could guarantee get and store as well as provide electricity to lights under the situation that sunshine and wind is week or unsteady.

 Unsteady weather days like cloudy day: In this time, the solar panel can not receives sunshine as energy, but the wind could provides energy to the 300W high efficiency wind turbine . The high efficiency wind turbine requires start wind speed just 2m/s(Under this wind, people’s  face could fells wind, leave of the trees can wave a little, boat’s fan can works);  Full load requires 8m/s wind(under this wind,  small trees can be shake and waves on the sea); As to the situation that wind is too strong, in order to protect the wind turbine, the device named Electromagnetic brake adopts mechanic yawing to shut down the turbine work, the shut down wind speed stronger than 20m/s( under this wind, it could destroy chimney and roof of the houses).  With monthly maintainence, the wind turbine’s life could reach to 25years or more.

The direction and force of the wind is unsteady, so while we calculate the daily generation power of the wind turbine would cut 50% of the power capacity in general way. The calculation as bellow:

1,Daily generation of the wind turbine=300w*24h*0.5=3600w/h;

2,Expenditure of the 60w LED light=10h*60w=600w/h;

3,Full load power of the two pieces 12V-150AH batteries =(12V*2)*(150AN*2)=7200w/h.

Assume there is no sunshine and wind in the near future days. The electricity stored in the batteries could provide the lights time =(3600w/h-600w/h)/600w/h= 5 days. Furthermore, the situation that no sunshine and no wind appears is quite impossible in the world. The wind turbine we assembly in this system could obtains energy just by breeze , and it could get the MAX overload power is 470w, but coz the unsteady wind, that’s why we said, it could keep light brilliants within 5-7days.（Note: Because we adopt good quality inverter and controller which has high efficiency , so the energy lost during the procedure of transfer and flu can be ignored.

However, you can know how to calculate the sunshine energy  transfers in this system as above steps. After do, you will know this system could keep light brilliants within 5-7days also.

  Meanwhile, we sincere invite you come to ours factory to investigate.

 Serve for you is our the best pleasure.

 Thank you!