“…In this paper, three different load range technologies, including base, peak and wind plant are considered as the candidate units for investment and each technology has different options for investment capacity. However, candidate units for investment in [5,21,25,27,30] are wind unit and in [14,19,20,22,26,[31][32][33][34][35][36][37][38][39] are other technologies. In addition, in this paper, the subsidy is considered in order to stimulate investment in the wind unit.…”