A solar park (also known as a free-field photovoltaic system or solar power plant) is a photovoltaic system that is not installed on a building or facade, but at ground level on an open surface. An open space system is a permanently mounted system in which the photovoltaic modules are aligned at an optimum angle to the sun (azimuth) by means of a substructure. In addition to these fixed free-standing systems, there are also tracking systems that follow the position of the sun. As a rule, several thousand modules are installed in solar parks, which often have a total output of several (hundred) MW photovoltaic power.
The largest solar park in the world
Currently (December 2018), Longyangxia Dam Solar Park on the Yellow River in China (Qinghai province) is the largest photovoltaic plant in the world with a capacity of 850 megawatts. More than four million solar modules supply the electricity for the gigantic plant.
Worldwide installed PV capacity:
The worldwide installed photovoltaic capacity is approx. 403GW, of which approx. 43GW are installed in Germany (end of 2017).
Source: Wikipedia, SolarServer, photovoltaik.one