Green "e-Genergy" by closed cyclus of a generator and an electromotor ! The proved and very efficient emergency generator who is driven not by fuel motor but by an electromotor who delivers electricity for free ! The "e-Generator" just need battery to start and works also very efficient,  constant and everywhere ! "E-generators" are ideal for constant electricity for free and no more CO2 emission for buildings and for the loading units for electric vehicles ! Also "e-generator" for electric cars , trucks , trains, other vehicles and even for airplanes, drones ! This is allready proved by scientists as green "free energy" on youtube !