Doctoral Thesis / Dissertation from the year 2010 in the subject Environmental Sciences, The Slovak Technical University (Faculty of Chemical and Food Technology), language: English, abstract: In the last years an increased discussion around bio fuel has been recognised. The motivations for more intense focus on this sector have been for different reasons. This start with the decoupling the dependency of crude oil and what mean more independent form other countries. Our economical system is also depending on the constantly delivering of the demand amount of crude oil at all time and also for a reasonable price. This has direct impact in our competition delivering of product on the world marked and therefore also for the gross income of the state. The goal of this study is an interdisciplinary scientific work. Main focus is on business economics, but on the base of existing technology to produce bio diesel fuel. The subject should for the bio diesel fuel plant follow the economic efficiency as well as economically and technically aspects. At the moment there are none published data or support for investors or companies, who wants to aim this market strategically. This contribution explains the most important parameters for a management decision of a investing into a bio diesel fuel plant and penetrating this market or not (cut off for market information is calendar week 26 in July 2010). The study will reinforces and supported through all part of the work with literature research.