Electricity demand forecasting is an imperative tool for the planning and operation of electric utilities. With today's uncertainty and turbulent economies, the development of long term forecasting models requires careful consideration. The mixed forecasting model proposed in this paper was developed for the long term electricity demand forecasting for the countries of south Europe andis capable of determining the per person annual electricity demand by using economic variables alone. The forecasting model displays excellent fit to historic data for all four of the countries under study, namely Greece, Spain, Portugal and Italy, the four of which were hit the hardest by the latest economic recession. Furthermore, the economic variable's coefficients need not to be recalculated for each country as the proposed model was developed in order to fit the electricity consumption profiles of all 4 countries. Finally, additional investigations revealed that the proposed model also fits the historic data of countries in central Europe, with the variable coefficients still unchanged.