Leading the Way in Renewables

Tim menzie

Tim Menzie

Interim CEO

Tim is a highly respected leader in the energy, power generation and infrastructure sectors. During his thirty-plus-year career, he has partnered with top-tier financial and strategic shareholders to maximize value across a diverse set of global energy and related infrastructure assets. Tim has a long track record of successfully advising portfolio companies on asset management, governance, long-term growth strategies, and acquisition guidance. Prior to joining Skyline, Tim was President and Chief Executive Officer of InterGen, a global power generation firm.

Tim holds a B.S. in Business Administration from Westfield State University and a MS in Taxation from Bentley University. He is also a Certified Public Accountant.

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James Kim

Director of Finance

Before joining Skyline, James spent 5 years in gaming and leisure, most recently as Director of Strategic Finance at Caesars Entertainment, where he managed a team that evaluated transactions across the company’s global portfolio of assets. Prior to Caesars, James led M&A, capital markets, and investor relations for a growing gaming company until its sale. James started his career in investment banking, executing over $4 billion of sellside and buyside transactions. He was most recently with Houlihan Lokey as a Vice President in its Healthcare M&A group.

B.S. in finance and accounting from NYU Stern and M.B.A., with honors, from Columbia Business School.

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Brad Kallenberger

Vice President, Asset Management

Brad has over 20 years of experience in the energy industry and joined Skyline in 2018 with the goal of building Skyline’s asset management, operations, and energy management capabilities. Prior to joining Skyline, Brad was the Managing Director of Asset Management at Avangrid Renewables, where he led a team responsible for 6,500 MW of wind, solar and natural gas generation assets. His former industry experience includes energy risk management as well as natural gas trading and scheduling in roles at Avangrid Renewables and Williams Power.

Brad holds a B.S. in Mechanical Engineering and an MBA from the University of Tulsa.

Robin Brown

Robin Brown


As Controller, Robin is leading the Skyline financial reporting and accounting functions. With 14 years of experience in the energy industry, he was previously Director of Budgeting and Reporting for Avangrid Renewables and had many years with direct oversight to operational and development/construction accounting.

Robin qualified as a management accountant (CIMA) after obtaining a B.A., with honors, in Accounting from Glasgow Caledonian University.

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Vanessa Rakowitz-Holloway

Director of Human Resources

Vanessa leads Skyline Renewables’ Human Resources department by managing the recruiting, compliance, employment law, payroll, and compensation functions (among others). As the Director of HR, she also oversees the Business Office Coordinator. She brings over 8 years of experience in HR roles, including 5 years as the Director of HR for the Portland Timbers prior to joining the Skyline Renewables’ team.

Vanessa received her B.A. in Psychology from Portland State University, as well as her HR Management Certificate. She additionally holds a SHRM-CP Certification.

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Victor Austin

M&A, Technology

As Managing Director of M&A and Technology, Victor has helped to facilitate the acquisition of Skyline’s first two projects – bringing the initial 225 MW of operating wind assets into Skyline’s portfolio. Victor formerly had a similar role at Avangrid/Iberdrola Renewables and prior to that developed wind projects with Midwest Renewable Energy. In his 20+ year career Victor has acquired and developed over 2,000 MW of wind power currently in operation.

B.S. in Mechanical Engineering from Duke University & graduate work in Aerospace Engineering at the University of Texas.


Manuel Ramos

Structuring & Financial Analysis

Formerly at BlackRock responsible for originating, structuring, and executing investments in infrastructure debt under client mandates of over $2bn and renewable power project acquisitions under a fund of $600m in assets under management and $200m of co-investment. Previously with Iberdrola Renewables, was responsible for structuring acquisitions and divestitures of renewable assets.

B.S. in Industrial Engineering, Operations Research & Statistics from Universidad de los Andes (Colombia), MBA from SUNY 

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Formerly leading Origination, Trading and Risk Management at Liberty Power, Rajiv specializes in structuring innovative energy and risk management solutions for customers. With over 20 years of experience in the energy industry, Rajiv held leadership positions at Constellation Energy, Sempra Energy and Thermax offering solutions to manage energy costs and transition to renewable sustainable solutions in a fast decarbonizing energy industry.

MS Financial Engineering Carnegie Mellon University, MBA National University of Singapore, BS Mechanical Engineering Delhi College of Engg

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Tom leads the legal function for Skyline Renewables and brings more than 20 years of experience as a corporate lawyer to the role, including several years at Vestas, the global leader in wind turbine sales and service. Tom began his career at Aquila (previously UtiliCorp United), a gas and electric utility company based in Kansas City, Missouri, and spent eight years in Atlanta with the aluminum manufacturing company Novelis, where he was the Assistant General Counsel (Finance) and Director of Corporate Compliance. Most recently he served as the Editor-in-Chief of One Page Thinking, an advisory firm specializing in visual communication tools to create clarity from complexity.

Tom holds two B.A. degrees in English/Spanish and Fine & Performing Arts (Voice) from St. Louis University, a J.D. from St. Louis University School of Law, and an LL.M. (International Legal Studies) from New York University School of Law.