Mainstream is one of the largest renewable energy companies in Chile. It entered the Chilean market in 2008 and now employs over 150 in its Santiago office. It has a development portfolio over 3 GW, and 1.4 GW in construction (seven wind and three solar PV projects). In addition, it has delivered 332 MW into commercial operation for its joint venture platform, Aela Energía.
Mainstream has three solar projects (380 MW) in development in Colombia.