An integrated time-depending feasibility analysis is presented in order to improve the reliability, of the computational methods to simulate the economic behaviour of commercial wind parks in Greece. in view of the continuous technological improvements or the sector and the important worldwide political and economic transformations. According to the proposed model, the time-dependency of the governing parameters is taken into account, based on almost 20-years data front the local market records, Additionally. information concerning the technology depended parameters front several European and local wind parks is also incorporated. The application of the developed computational frame to several cases, concerning the economic behaviour of wind parks erected during 1985-95 in Greece, significantly improved the accuracy of predictions in comparison with the results based on time-mean values of the corresponding parameters. Finally, the proposed model satisfactorily explains the evolution of wind energy applications in Greece during the last 15 years. on the basis of pure economic terms.