A wind farm is a cluster of wind turbines (up to several hundred) set up in areas where there is a nearly steady prevalent wind, either on on land or offshore. The number of wind turbines in the array varies from no more than two or three in a small cluster to the thousands of machines in California's windy passes.
Though it may seem a feature of the modern landscape, the use of multiple wind turbines to perform a task is nothing new. Only by tapping the power of multiple windmills could Jan Leeghwater, and the engineers that followed him, drain the polders and make the Netherlands what it is today. The Dutch called these early wind farms gangs of windmills and a group can still be seen southeast of Rotterdam at Kinderdijk. This water pumping wind plant was in use until the 1950s.