DETERMINING THE OPTIMAL INVESTMENT AMOUNT OF AN INTELLIGENT HOUSE - POTENTIALS OF INFORMATION AND TECHNOLOGY TO COMBINE ECOLOGY AND ECONOMY

Innovations in the field of information systems (IS) open up new possibilities to increase energyefficiency and carbon reduction. For this, real estate is an industry sector with remarkably highpotential. Here IS are integrated into 'Intelligent Houses'. But many of these ecologicallyadvantageous investments are not made yet, because they do not seem to be economically profitable.We therefore develop an IS-specific model to identify investment alternatives out of all ecologicallyadvantageous investment alternatives which are also economically profitable. For this, we comparethe investment amount with the achievable energy cost reduction and the raise of the buildings' resalereturns. Out of all identified investments we determine the economically optimal investment amount.In this connection we put special emphasis on the valuation of risk and for the first time point out theapplicability of Intelligent Houses as insurance against energy price volatility. Thus the quantity of allecologically advantageous and economically profitable investments is enhanced as well as theeconomically optimal investment amount. IS' potentials to combine economy and ecology can thus bedetected and made useable. An example illustrates how the model can be applied.[...]