How we utilise it has been an issue since people first settled in Iceland and many statues can be found in Grágás, Járnsíðu and Jónsbók.In the beginning of the 20 th century considerable changes wear made in the water legislation because men had learned to use water to produce energy.
Á fyrri hluta 20. aldar voru gerða umtalsverðar breytingar á vatnalöggjöf landsins þar menn hefðu lært að nýta sér vatnsafl til orkuframleiðslu.