If you are planning for a rooftop solar plant please follow the below link. Wind Voltz is providing an advanced solar product which is producing hybrid energy.
The solar mill SM1 - 1P is a hybrid solar wind energy system. This system is good for the rooftop solar plant. If you install this product in your home, office or company you will get enough electricity from renewable energy sources.
This product can be used as an on-grid power management system. If you add this to the main grid you can earn money by selling the excess electricity. If the sunlight is low due to cloudy weather then the wind turbines can collect energy from the wind. The wind turbines start to function if there is 2m/s speed wind.
Please visit the below for more details about solar mill SM1 - 1P
Wind Voltz Hybrid Solar Wind Energy System - Solar Mill SM1 - 1P