Totalized Hydrogen Energy Utilization System

The totalized hydrogen energy utilization system (THEUS) proposed here is a hydrogen-based energy system originally designed to have both functions of load leveling and cogeneration in commercial buildings. In addition, THEUS has the potential to capture fluctuating energy input from renewable energy sources such as solar photovoltaics (PVs) and wind power. The main components of THEUS are a unitized reversible fuel cell (URFC) and metal hydride tank (MHT). In this chapter, first, the performances of URFC and MHT were verified individually. Then, a 3-day continuous operation of THEUS was evaluated. Finally, the potential of THEUS for capturing fluctuating energy input was verified experimentally. These experimental results clearly indicate the promising potential of THEUS as an innovative energy facility in stationary applications.