Sustainable and safe energy supply with seawater uranium fueled HTGR and its economy

It is concluded that the HTGR fueled by seawater uranium with the current technology enables the energy sustainability for approximately 72 million years with superior inherent safety features and lower cost of 6.07 cents/kWh (7.28 yen/kWh) than the 7.34 cents/kWh (8.80 yen/kWh) cost of LWR using conventional uranium.