Techno-Economic Optimization of a Sustainable Energy System for a 100% Renewables Smart House

The continuous increasing negative effects of fossil fuel consumption on society and the environment, opens a major interest into environmentally friendly alternatives to sustain the increasing demand for energy services. Despite the obvious advantages of renewable energy, it presents important technical and economic challenges. One such challenge is the discontinuity, or
intermittency, of generation, as most renewable energy resources depend on the climate, which is why their use requires complex design, planning and control optimization strategies. This paper presents a model and optimization for a sustainable energy system for a 100% renewables based Smart House (SH). We have devised and analysed an innovative high-efficiency approach to residential energy supply. The analysis involves detailed technical specifications and considerations for providing optimal supply of electricity, heating, cooling, and hot tap water demand, balancing fluctuating wind power and both solar power and solar thermal supply utilizing advanced heat pump and both electro-chemical electricity storage, and hot and cold thermal storages. Our research is basically concerned with the question of how to design 100 % renewable based energy supply systems. Our results show this is indeed both possible and relatively feasible.