The project of prediction models was developed in the Data Miner graphic environment, which allows one to determine the hourly electric energy demand for an agricultural and food industry plant. Whilst using data mining techniques, it is not necessary to know apriori the form of the theoretical model of the examined phenomenon; it is also not necessary to meet the assumptions, whilst it is possible to model very complex processes.
We have analyzed a meaning and position of some agro engineering branches in the Polish industrial economy structure. We have used statistical methods in this aim, allowing analyzing the impact of many different structural variables on the agro engineering potential development.