We are
Pattern Energy

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We develop, construct, own, and operate high-quality wind, solar, transmission, and energy storage projects across North America.

Transitioning the World to
Renewable Energy


global development portfolio


local payments over the life of our operating fleet


construction and operations jobs


operating facilities totaling ~6 GW installed capacity


commercial solar projects completed through our affiliate Solect Energy


miles of transmission in operation and in development

We are in the business of building opportunities for local communities.

Our approach begins and ends with establishing trust, accountability, and transparency. We aim to sustainably develop, construct, and operate clean, renewable energy projects in a safe and responsible manner and with respect for communities and cultures where we have a presence. 

Building transformational energy projects is not easy. But the toughness, grit, and determination of our people has been the foundation of our success since our inception.

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  • We chose Solect in the end because they were the most responsive. They were the most innovative. They were the ones that were able to make this project a reality.

    Dan Harrison President & CEO, NuPath
  • When I met Pattern there was a sense of belonging. That’s the kind of business you know wants to be a part of your community.

    Myra Pancrazio Executive Director, Estancia Valley Economic Development Association
  • Red Cloud Wind Project is an excellent opportunity to diversify our renewable portfolio with a high-capacity wind power project that taps into one of the richest wind regions in the country. With the combination of ideal wind conditions and the latest high-efficiency turbines, Red Cloud will provide Los Angeles with reliable renewable energy that has the highest capacity of any wind project in our power system.

    Martin Adams General Manager and Chief Engineer of the Los Angeles Department of Water and Power
  • This wind project will secure our land for the foreseeable future. It not only does not detract from the value, it increases it tremendously. This is set revenue for the next 30 years. For those of us that live here, and have been here a long time, this is a godsend.

    Joseph Hindi Landowner, Duran, NM

Our Leadership

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    Hunter Armistead

    Chief Executive Officer

    Mr. Armistead serves as the Chief Executive Officer of Pattern Energy. He co-founded Pattern Energy with Mike Garland in 2009. Mr. Armistead oversees all aspects of Pattern, with a special focus on strategy, growth, capital formation, and company culture.

    Previously, Mr. Armistead served as Pattern’s Chief Development Officer where he had the responsibility for all development and origination activities and had broad responsibility for running the Business Development day-to-day business. He led all global business development, including construction, engineering, and major equipment procurement.

    Prior to joining Pattern Energy, Mr. Armistead spent 10 years overseeing Babcock & Brown’s North American renewable energy business, including development, construction, and operations. In previous roles, he led financing efforts for Edison Mission Energy and developed multiple facilities for Conoco. Mr. Armistead has a Bachelor of Science in electrical engineering from Rice University. He is based out of the Houston office.

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    Daniel Elkort

    Chief Legal Officer

    Daniel Elkort has been with Pattern Energy since 2013, first as Executive Vice President and General Counsel and now in his role of Executive Vice President and Chief Legal Officer. He also is responsible for Pattern Energy’s Project Finance activities.

    Daniel holds a bachelor’s degree from the University of California, Berkeley and a law degree from Harvard University. He is based in San Francisco.

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    Esben Pedersen

    Chief Financial Officer

    Mr. Pedersen is the Chief Financial Officer of Pattern Energy. Mr. Pedersen is responsible for executing capital strategy, corporate development, financial reporting, administration, and treasury activities. With over 20 years of experience, Mr. Pedersen has been involved in various levels of investment oversight and management across the energy sector.

    Prior to joining Pattern Energy, Mr. Pedersen worked for Babcock & Brown, where he focused on the origination and execution of investments in the energy sector. Before that, he worked as Manager for Enron and Senior Director for AEI, serving around the world in numerous corporate development and origination roles. Mr. Pedersen received his bachelor’s degree in Business from Stetson University and holds a master’s degree in International Economics from John Hopkins University. He is also a certified Chartered Financial Analyst.

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    Cary Kottler

    Chief Development Officer

    Mr. Kottler serves as the Chief Development Officer of Pattern Energy. In this role, he oversees Pattern’s business development activities, encompassing the wind, solar, transmission, storage and green fuels sectors. These efforts include the creation and evaluation of new growth opportunities as well as advancing Pattern’s development pipeline through all phases of development, commercialization and into construction. 

    Prior to joining Pattern, Mr. Kottler served as executive vice president of Clean Line Energy. He held a number of roles at Clean Line across the development, commercial and legal sectors, with responsibilities encompassing project development, state and federal permitting processes, FERC matters, corporate compliance, financing arrangements and commercial agreements.

    Previously, Mr. Kottler was a corporate attorney for Vinson & Elkins, focusing on mergers and acquisitions, project development and private equity investments in the energy and power sector, both domestically and internationally.

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    Andre Walker

    SVP, Power Operations

    Andre Walker serves as Senior Vice President of Power Operations for Pattern Energy. In this role, he is responsible for the safe and reliable operations of Pattern’s global fleet of renewable energy facilities and oversees the full range of operational disciplines, including health & safety teams, field operations, engineering, asset management, energy management, regulatory compliance, supply chain, and environmental.

    Prior to joining Pattern, Andre also held a variety of leadership roles over 16 years with Calpine Corporation including Vice President of Asset Management, Vice President of Supply Chain, and Vice President of Investor Relations in addition to several other operational and commercial roles. 

     Andre has over 25 years of experience in the power and energy industries including his experiences at Air Liquide America Corporation and Praxair Inc.  Andre earned his Bachelor of Science degree in Chemical Engineering from the University of Texas at Austin. He is based in Houston, Texas.

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    Frank Davis

    AVP, Green Fuels and Canada Country Head
    Frank Davis is Assistant Vice President, Green Fuels, and Canada Country Head for Pattern Energy. He leads Pattern Energy’s business development activities in green fuels, including green hydrogen and green ammonia production and export projects in the United States and Canada. He also acts as the senior representative for Pattern Energy in Canada, with responsibility for market development, government relations, community engagement, joint venture partnerships, and relationships with customers.
    Prior to joining Pattern Canada in 2011, carried on a commercial legal practice with one of Canada’s largest law firms. He sits on the board of the Canadian Renewable Energy Association (CanREA) and, originally from Newfoundland & Labrador, currently resides in Toronto where he manages the Toronto office of Pattern Canada.
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    Sarah Webster

    SVP, External Affairs & Market Development

    Sarah Webster is Senior Vice President of External Affairs & Market Development for Pattern Energy. She oversees Pattern’s Government Relations, Corporate Communications, Stakeholder Management and Sustainability efforts.

    Sarah has been with Pattern Energy since 2013 and enjoys building relationships with company stakeholders and serving with her team as the “diplomatic core” for the company. She has worked in the energy sector for over 20 years at companies such as InterGen, Shell and Wind Capital Group and has also worked as a music critic for the Houston Press.

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    Deborah McAdam

    SVP, People & Culture and Workplace Operations & Experience

    Deborah McAdam is Senior Vice President of People & Culture and Workplace Operations & Experience for Pattern Energy. In her role, which she has held since 2017, Deborah focuses on building consensus around processes and procedures, with the goal of providing cost-effective enhancements of organizational culture. Her career has spanned renewable energy and consulting industries, where she has led growing, cutting-edge organizations to new phases of their life cycle.

    A native San Franciscan, Deborah holds a bachelor’s degree and a master’s in business administration from the University of San Francisco. In addition to earning the “Woman of the Year 2010/2011” award from the National Association of Professional Women, Deborah holds certifications in project management and employee relations.

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    Justin Sabrsula

    VP, Fundamentals and New Markets

    Justin Sabrsula is Vice President of Fundamentals and New Markets for Pattern Energy. He provides independent analysis and advice on the key fundamental drivers impacting Pattern Energy’s markets and identifies growth opportunities. He is also responsible for corporate strategy planning.

    Prior to joining Pattern Energy, Justin served as Head of Strategy for GE Renewable Energy’s Onshore Wind division where he led global business and product strategy for equipment and services. He has also held a variety of strategy, product management and marketing leadership roles across GE’s wind, energy storage and solar divisions. He values creating opportunities and driving strategy using rigorous research and analysis, to help elevate company performance.

    Justin holds a bachelor’s degree in Public Policy from Duke University and two master’s degrees, in Urban Planning and Business Administration, from The University of North Carolina at Chapel Hill.

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    George Hardie

    VP, Business Development

    George Hardie is the Vice President of Business Development for North America. With more than 20 years of experience in the wind industry, he has been responsible for the development or acquisition of more than a dozen projects in the United States, United Kingdom, and Central America, totaling more than 2,000 MW.

    At Pattern, George has been the lead developer or originator of many of the company’s largest projects including Hatchet Ridge and Spring Valley. He has also led the acquisition of several projects including two in Canada’s Ontario Province (Armow and K2) totaling 450 MW, as well as the 300 MW Finavera Portfolio of wind projects in British Columbia and, most recently, the acquisition of the 200 MW Logan’s Gap Project in Texas and the 150 MW Fowler Ridge IV project in Indiana.

    George founded his first wind company, International Wind Companies, in 1991. He and his investors sold the company to the Zilkha family in 1998, which was subsequently renamed Zilkha Renewable Energy. George stayed on as President and CEO for almost four years, establishing the team that made Zilkha one of the fastest-growing renewable energy companies in the world and paving the way for Goldman Sachs to acquire the company two years later. In 2003, George left Zilkha to start a new company, G3 Energy, which was subsequently acquired by Babcock & Brown in late 2005. G3 Energy projects that were successfully financed, constructed and operated include the 38 MW Buena Vista Repowering Project in California’s Altamont Pass and the 150 MW Spring Valley in Nevada, which was awarded the 2012 Powergen Magazine U.S. Wind Project of the Year.

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    Jenn Ritchey

    AVP, Business Development

    Jenn Ritchey is AVP of Development for Pattern Energy leading her team on solar, wind, storage, and transmission development across the US; she has successfully developed more than 1 GW of innovative renewable opportunities.

    Jenn has 10 years of experience developing utility-scale renewables, including five years at Pattern Energy developing utility-scale renewables across the US, forming innovative partnerships, evaluating new commercial opportunities, and leading development M&A transactions.  Prior to her time at Pattern, she spent five years at Recurrent Energy developing utility-scale solar.  In her prior role, she led more than 400 MW of projects through development and financial close that are now operating in California and led the expansion of strategy on the East Coast.

    Jenn earned her bachelor’s degree in Environmental Science from the University of North Carolina at Chapel Hill, and her Master of Science and MBA from the University of Michigan. She is based in Oakland, Calif.

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    Monica Opderbeck

    AVP, Origination & Power Marketing, Business Development

    Ms. Opderbeck serves as the Associate Vice President of Origination & Power Marketing within Pattern’s North American Business Development group. She and her team are responsible for the commercial leadership of originating, structuring, negotiating, and executing long-term structured revenue contracts, other energy-related procurement contracts, and asset sale transactions for Pattern Energy’s development pipeline and operating assets.

    Prior to joining Pattern Energy, Ms. Opderbeck served as a Director of the Renewable Energy and Environmental Finance portfolio at Wells Fargo. In her time at Wells Fargo, she spent a total of 12 years in energy finance and capital markets. While she held several roles at Wells Fargo, from commodity derivatives to project finance, most of her time was focused on deploying capital for the bank’s renewable energy tax equity investments where she successfully led some of the largest tax equity transactions in the industry.

    Ms. Opderbeck earned a Bachelor of Arts degree in Mathematics from the University of California, Santa Cruz. She and her family reside in the San Francisco bay area.

Our Investors

Pattern Energy’s world-class capabilities, operating assets and development projects, are backed by some of the world’s largest and most knowledgeable investors. As such, Pattern is securely positioned and committed to meeting or exceeding our growth targets and advancing our mission of transitioning the world to renewable energy.