Selected models of energy systems

One of the most important sector of the national economy is the energy sector. A number of changes in the sector depends on a number of factors, not only technical and economic, but also social and political. At present Polish energy sector faces serious challenges. High demand on final energy , inadequate level of manufacturing and industrial infrastructure, dependence on the external supply of natural gas and oil, climate protection commitments, give rise to the need to take decisive actions. To achieve the objectives of the proper functioning of the energy system an essential element of the process is continuous observation and prediction of changes in the system in different timeframes. The complexity of the problems of the fuel economy and energy causes computer models to be an essential tool for their analysis. No decision about the introduction of regulations in the field of energy and ecology can do without previous studies of the effects which can be therefore estimated by using models.