Spanish clean energy company Acciona Energía has connected the 246MW El Romero solar plant in Atacama desert, Chile to the county’s Interconnected Central System (SIC), becoming Latin America's largest. The US$343m El Romero Solar plant features 776,000 polycrystalline silicon photovoltaic modules, spread across 280ha area in the municipality of Vallenar, 645km north of the Santiago.