The following article as published by Airport International concerns Steeltrac's Hybrid towing truck.
This towingtruck has many applications. Additionally the truck´s capacity to pull very heavy things you also can load up till 500kg on the truck. With this truck which is called a hybrid you can switch from diesel to acumalator.
This is very practical when you work both indoors and outdoors.
E3-30 Hybrid G10 is common at airports and terminal work for example.