[en] The relationship between demand for power and economic growth - in the past, these quantities have usually shown the same growth rates - is liable to change as a result of structural changes in the economy, saturation in the field of comfort, a more economical utilisation of energy and novel energy conversion technlogies. The author discusses the development of a model that can be used as a help in energy policy decisions, with account being taken of various energy scenarios, nuclear energy policies and ecological aspects. (Auth.)