In this work, the central issues related to Green Hydrogen technology will be discussed from a critical and rigorous perspective, taking into consideration its main characteristics, both positive and negative. After this, we will make an exhaustive review of the value markets in which this industry will play a leading role in the future. In the following term, we will focus this study on the territory of Chilean Patagonia, placing special emphasis on its territorial effects, considering its social, economic and environmental effects. A review will be carried out of the main current and future projects in the area of said technology and finally, a cycle of proposals for legislative improvement will be made in order to remedy the problems or conflicting nodes evidenced.