Producing green hydrogen is one of the most important problems today. The main method is pure water electrolysis, which is not very profitable from a business point of view. Our project seems to solve this problem. We propose to obtain hydrogen and sodium hydroxide from the electrolysis of brine, and then to obtain hydrogen again from the hydroxide and recycled aluminum. In this process we also get chlorine gas and sodium aluminate. Taking into account the demand for chlorine and the use of sodium aluminate in modern construction, we can say that the abundance of manufactured materials makes production more attractive and profitable.