Renewable energy sources are considered as the key solution to tackle the energy-related problems—including global energy supply and environmental challenges facing our society. However, the need for utilizing the renewable energies is increasing, but their dependency on weather conditions makes them unable to provide continuous power supply to the load, because of the uncertainty and intermittent nature. Renewable energy sources, like wind, solar, hydro and biomass can be integrated to form a hybrid system which is more reliable and environmentally friendly. This paper aims at introducing a novel Hybrid Renewable Energy System (HRES) based on the integration of renewable power generation and hydrogen generation from supercritical water gasification of wet biomass feedstock. The Techno-Economic Analysis of the proposed HRES is carried out in order to support the annual electricity demand of a selected household area, in a subject district around the Shinchi station which is located in Shinchi-machi, Fukushima prefecture.