This statistic represents global investment in solar energy technologies between 2004 and 2015. In 2013, global investment in this field came to a little under 120 billion U.S. dollars. Europe, China and the United States are the main investors in this area. In 2015, some 67.44 billion U.S. dollars were invested into small-scale solar systems and 94 billion U.S. dollars into utility-scale systems. However, it must be noted that different entities may utilize varying minimal thresholds for the definition of utility-scale, which has been found to range from 5 to 50 megawatts. As of February 2015, one of the largest solar photovoltaic power plants, the Gujarat, is located in India and has a capacity of 856.8 megawatts.