Internal transport is a process whose purpose is the transport of raw materials, products in production and finished products within the industrial plant. Internal transport is necessary for the good functioning of the production flow in an industrial enterprise. Internal transport is categorized as an auxiliary process, and its energy consumption constitutes only in a few exceptions a significant part of the company's energy consumption, usually the energy consumption of internal transport is small. For companies where, for example, a large part of production is automated, internal transport can, however, be a significant part of the company's energy consumption. Examples of different types of internal transport are forklifts, traverses, cranes and other lifting devices and various types of trucks. Several energy carriers can be used for internal transport, the most common being electricity and diesel. Optimizing the company's internal transport is a key element of effective logistics management. With proper planning, innovative technologies and the application of Lean Management principles, companies can increase the efficiency of their materials handling, reducing waste, increasing productivity and improving overall operational efficiency.