Our Generator doesn't use Fuel, 
it doesn't uses, petrol, Diesel, Gasoline neither does it uses Engine Oil..
Our Generator uses Inbuilt battery to power the Dynamo

The Dynamo is responsible for Generating the Electricity 

And the electricity is high voltage
.
So there is step down on the Generator that step the Electricity down before passing it to your home

There is an Altanator that was attached to the Inbuilt battery, the is a wire connected from The step down to the Altanator