Hydrogen release/storage system, hydrogen release/storage method, ammonia production equipment, gas turbine, fuel cell, and steel mill

A hydrogen release and storage system comprising:

• a first hydrogen release and storage unit composed of a first hydrogen compound member,
• a first container that accommodates the first hydrogen compound member,
• a first heating apparatus configured to heat an inside of the first container,
• a first cooling apparatus configured to cool the inside of the first container,
• a first water supply apparatus configured to supply water to the first container,
• a second hydrogen release and storage unit composed of a second hydrogen compound member,
• a second container that accommodates the second hydrogen compound member,
• a second heating apparatus configured to heat an inside of the second container,
• a second cooling apparatus configured to cool the inside of the second container, and
• a second water supply apparatus configured to supply water to the second container, and
• a switching apparatus configured to switch between a first state and a second state,
• the first state is a state where, in the first hydrogen release and storage unit, the first heating apparatus is driven and the first cooling apparatus and the first water supply apparatus are stopped, and in the second hydrogen release and storage unit, the second heating apparatus is stopped and the second cooling apparatus and the second water supply apparatus are driven, and
• the second state is a state where, in the first hydrogen release and storage unit, the first heating apparatus is stopped and the first cooling apparatus and the first water supply apparatus are driven, and in the second hydrogen release and storage unit, the second heating apparatus is driven and the second cooling apparatus and the second water supply apparatus are stopped.