analysis and optimization using renewable energies to get net-zero energy building for warm climate

Due to low energy price, economic optimization of consumption has no justification for users in iran. nowadays, the issue of ending fossil fuels, production of greenhouse gases and the main role of building in consumption of considerable amount of energy has drawn the focus of global researches to a new concept called net zero energy building. in this study, modeling, simulation and energy analysis have been used for considered building in zahedan weather condition which has a dry and warm climate to draw the related equations and perform analysis. multi-objective optimization has been performed for simultaneous reduction of total energy consumption and total cost where the main decision making variables including thermal comfort, cooling, heating and lighting systems and other variables have been influential. the comparison of an ordinary optimized building and the intended optimized building which uses renewable energy resources indicates that it is possible to get to net zero energy building in addition to selling surplus 2 mwh electrical energy to electricity grid with simultaneous use of solar and wind renewable energies.