Grid Stability and
Renewable Energy

EnfraGen is an infrastructure market leader in the energy transition process towards more sustainable, greener energy sources through our Grid Stability and Value-Added Renewable assets

1.9+ GW


1.6+ GW


90 MW


90 MW




About Us

EnfraGen is a developer, owner, and operator of grid stability and value-added renewable power and power infrastructure businesses across Latin American investment-grade countries. EnfraGen’s business model supports the process of energy transition towards a more sustainable, lower carbon energy matrix with a strategy to deliver efficient, high quality essential services to improve the energy matrix which benefits the communities and economies in which we operate.

Our Business

EnfraGen has two operating divisions which specialize in owning and operating energy transition assets.  Prime Energía is a developer, owner and operator specialized in grid stability solutions with operations in Colombia and Chile.  Fontus Renewables is a developer, owner and operator of smaller scale, distributed renewable energy power plants, such as run-of-river hydro and solar power plants that support the process of transition towards zero-carbon emission electric grids.

Our senior management team has extensive experience in the development and operation of power plants in Latin America and other emerging markets.  Each of our divisions is staffed with qualified personnel, allowing for a fully integrated and scalable approach to administration, operations, maintenance, development and construction activities across the platform.


Brendan Duval

Chief Executive Officer

Mr. Duval has served as EnfraGen’s Chief Executive Officer since 2015 focused on the development, acquisition and operation of power assets in the Americas. He has led EnfraGen’s focused, accretive, and successful growth strategy. Mr. Duval also serves as Founder and Managing Partner of the Glenfarne Group and has more than 20 years of experience developing and operating infrastructure and real assets. Brendan founded Glenfarne in 2011 and is responsible for the strategic direction of the firm. He also maintains the role as an active executive chairman for its operating entities. Prior to launching Glenfarne Group and becoming CEO of EnfraGen, he was a Senior Managing Director of Macquarie Capital in its New York office. He was a founding member of the US Management Committee and Co-Head of the Diversified Industries Group, having P&L responsibility for approximately 100 staff members across five office locations focused on infrastructure industrials. He was also CEO of a number of direct investment vehicles and built the US principal toll road investment business. Brendan’s business-building experience commenced in 2000, when he was a founding member of Macquarie’s US infrastructure merchant banking business (including principal and fund investing). Immediately prior to launching Glenfarne Group, he was tasked with building Macquarie Capital’s Latin American initiatives.

Bryan Murphy

President and General Counsel

Mr. Murphy assumed the role of General Counsel for EnfraGen in 2015. He serves as President of EnfraGen. He also serves as President of EnfraGen company Prime Energía Colombia. Mr. Murphy is also Managing Director and General Counsel for the Glenfarne Group and has more than 17 years of experience in law, engineering, infrastructure investment, asset management and project development. Prior to his leadership positions, Mr. Murphy was an attorney at Vinson & Elkins LLP, representing clients in the financing, acquisition and development of energy and infrastructure projects in the Americas. Early in his career, Mr. Murphy worked as an engineer, including as an independent engineer advising on power asset transactions. Mr. Murphy has a B.S. in mechanical engineering, a M.A. in Latin American, Caribbean and Iberian Studies and a J.D. from the University of Wisconsin.

Enrique Reus Jimeno

Chief Financial Officer

Mr. Reus became EnfraGen’s Chief Financial Officer in 2015 and also serves as Managing Director and CFO for the Glenfarne Group. He has more than 15 years of experience in finance and accounting. Before joining Glenfarne Group, Enrique worked at Ferrovial, S.A, a leading global infrastructure and services operator, as a consolidation specialist and spent almost 5 years as Deputy CFO of the US Ferrovial subsidiary, Webber LLC. Prior to that, Enrique worked at Ernst & Young’s Madrid office as an auditor on various auditing projects within the energy, infrastructure and industrial sectors. Enrique is a native Spanish speaker and fluent in English.

Jim Pontiff

Executive Vice President, General Manager

Mr. Pontiff serves at EnfraGen’s Executive Vice President charged with overseeing operations, primarily in Chile. He also serves as COO of EnfraGen company Prime Energía Chile.  He has over 30 years of energy sector experience in the U.S., Latin America and Africa including several executive roles within Latin American subsidiaries of Duke Energy Corporation, CFO and VP of Business Development for Maple Energy plc, and Deputy General Manager and CFO for an African subsidiary of Hess Corporation.  He earned a Bachelor of Science in accounting degree from Louisiana State University.  He is a Certified Public Accountant in the State of Texas.

Thomas Cimino

Executive Vice President, Finance and Administration

Mr. Cimino serves as our Executive Vice President of Finance and Administration since 2021. He has over 25 years of international experience including in the energy and power sectors.  Prior to joining EnfraGen, from 2016 until 2020 he served as CFO at Vantage Drilling International, and from 2007 until 2016 as VP & Controller and then later CFO at AEI Services, LLC, an international company focused on power generation and distribution. From 2003 until 2007, he served as Director—Global Capital Markets Group at Pricewaterhouse Coopers based in Santiago, Chile. He received his Bachelor of Science degree in Accounting from The Pennsylvania State University and his Executive MBA from Rice University.

Jose Arosa

Executive Vice President, Commercialization

Mr. Arosa serves as CEO of Prime Energia Chile and Executive Vice President, Commercialization for Prime Energia’s parent company, EnfraGen. Prior to joining EnfraGen in September 2021, Jose was president and CEO of AES Mexico overseeing the operating portfolio in Mexico for AES and tasked with the growth strategy for EnerAB, a joint venture with Grupo BAL focused in developing clean energy projects. Arosa has worked in different countries and leadership roles in business development and M&A. He has also led the entry strategy for Inkia Energy as country manager for Mexico and was in charge of the development team for InterGen in the Americas. Jose holds a BS and MS in chemical engineering from Universidad Alfonso X El Sabio, and an MBA from Virginia Darden School of Business.

Marco Fuentes

Executive Vice President of Operations & Safety

Mr. Fuentes joined EnfraGen in November 2021 serving as Executive Vice President of Operations & Safety. Marco joined EnfraGen from Saavi in Mexico where he was Chief Operating Officer responsible for the operational assets and overall Engineering and Operational strategy. Prior to Saavi, Marco held various positions at InterGen with his last role being Commercial & Operations Director. He also previously worked for GE as a Contract Performance Manager and Field Engineer. Marco holds a Master’s in Business Administration and a Bachelor’s in Electrical Engineering from the Instituto Tecnologico y de Estudios Superiores of Monterrey.

John Kistle

Executive Vice President of Generation Strategy and Strategic Operations Initiatives

Mr. Kistle serves as EnfraGen’s Executive Vice President of Operations in the Latin American region with a particular focus on Colombia. He has more than 35 years in Power Generation Operation and Project Development implementing business improvement, turn-around, and growth strategies within the power industry as well as successful development of $5.5B (closed) of various international projects (greenfield and brownfield). Throughout his career, he has held several positions with AES and GE developing, managing and operating projects. Before entering the private sector, John spent 13 years with the US Navy as a nuclear ship superintendent, operator, and test engineer.


EnfraGen recognizes the importance of being a good neighbor and actively participates in the communities in the areas of influence around our businesses.  Our community relations programs are designed around developing long term and stable relationships with key stakeholders by promoting continuous dialogue, fostering local development that promotes safe and healthy living, education, and preservation of local cultures.

The company also recognizes the importance of environmental conservation and the responsible use of natural resources.  We are committed to implementing best practices in the efficient and sustainable use of natural resources that minimizes environmental impacts and complies with environmental laws and regulations.


EnfraGen believes in being a responsible corporate citizen.  In addition to abiding by environmental regulations, we place importance on being a responsible neighbor in the communities where our plants are located.

Our value-added renewable energy power plants provide competitively priced clean renewable energy that operate in an environmentally friendly manner. Our grid stability assets provide critical grid support which facilitates the development of more renewable energy by providing reliable sources of back-up power when needed.  Our plants can be called by the system dispatcher to quickly ramp-up and inject energy into the electric system in order to stabilize and support the grid when and as needed.

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