Most current wind turbines are only capable of starting the generator when wind speeds are above 3m/s. However, in the majority of regions and localities in Vietnam, the average wind velocity is just from 1m/s to 3m/s at positions near the ground. This leads to the fact that most of the wind turbines often stop working if they are not installed at appropriate heights. In order to produce electricity in low wind areas, this paper proposed a new wind turbine concept in which the electrical power is generated intermittently via a spiral spring performed as an energy accumulator. Theoretical and experimental results show that the combination between spriral spring and speed - reducer will decrease significantly the staring torque and convert easily the wind's kinetic energy into electrical energy under weak wind conditions.