Efficiency of wind turbine vertical axis generator

A single vertical turbine has an efficiency in the range of 35 to 40 percent (though vertical turbine researchers are sure that number will soon reach 50 as well). [pdf]

Electric vehicle energy storage modules in developed countries

The electric vehicle (EV) technology addresses the issue of the reduction of carbon and greenhouse gas emissions. The concept of EVs focuses on the utilization of alternative energy resources. However, E. [pdf]