The necessity for Japanese nuclear power at 2050

To avoid the severe energy crises estimated at 2050s and to face the growing global climate crises. This paper proposes to enlarge Nuclear energy to supply enough surplus power to yield Hydrogen for multi-purpose (C₁ Chemical with Blast Furnace Gasification in ironworks, Refinery, Petrochemical, Fuel cell) and to replace fuel with Heat Pump and EV and utilize Small Modular Reactor efficiently with illustrating some examples. Example A: Small Modular Reactor co-generate heat and power to dry Victoria-lignite in Australia and to resolve it into Char, water and tar, this Char is useful for C₁ Chemical in Japan. Example B: Small Modular Reactor co-generate heat and power to extract Methane of Methane-Hydrate well in the bottom of the sea. (author)