Leadership Teams

Manuel Tagle stepped into the role as General Manager of Mainstream’s LatAm business in April of 2018.

He has extensive experience in the energy industry, particularly in renewables. Prior to joining Mainstream, Manuel was CEO of SunPower and Commercial Manager of Sociedad GNL Mejillones.

Manuel has a degree in civil industrial engineering and an MBA from the Universidad de Desarrollo, Chile. He is currently the Treasury Director of ACERA, the Chilean Association of Renewable Energy.

Bryan joined Mainstream in June, 2022 as COO for Latam and has over 30 years’ experience leading multinational energy projects. Prior to his arrival at Mainstream, he was Operations Director at Prime Energía. Given his background, he has a strong understanding of engineering disciplines, including mechanical, automation and electrical, with a methodical and structured approach to project engineering.

Bryan has a Bachelors degree in Engineering (honours) from University of Limerick.

Nicole Herbert is Head of HR & Business Facilities for the Americas region and has held this position for over 10 years.

Nicole joined Mainstream US in 2008 to hire a team of developers to work on wind energy projects in North America.

Prior to joining Mainstream, Nicole worked for four years in the global renewable energy company, Airtricity Inc. and has over 16 years of experience working in the renewable energy sector in Ireland, the United States and Chile.

Nicole has a business degree from Portobello College, Dublin.

Mariangel is a lawyer from the Pontificia Universidad Católica of Chile, with studies in International Business from the University of London, UK. After twelve years of experience in the energy and mining sector as Regional Legal Manager for LATAM at Vestas, lawyer at AES Andes, Freeport McMoran in Madrid and standing out as part of the 3rd Generation of Women in Energy Chile 2021 of WEC-Chile; she joined Mainstream in March 2022 to lead the Legal area providing important results in actions of modernisation of contracts, review of management and corporate structure, transparency and contribution in policies of greater order, availability of information for shareholders, among others.

Ana María Argandoña joined Mainstream Renewable Power Chile as Head of External Affairs, Communications and Communities in December of 2019.

Ana María is a communications specialist with a Masters in Corporate Communications Management from the Universidad Politécnica de Cataluña in Barcelona.

She has over 15 years of experience in the public and private sectors, particularly in the mining, water and energy industries.

Ana María has also held various roles in the Ministry of Internal Affairs and the Ministry for Health. Ana María is highly experienced in communications management, community development, crisis management and conflict resolution, institutional relations, social corporate responsibility and public affairs, among others.