Hello there. Nice to meet you.

Before coming together to form Pioneer Green Energy, the members of our team helped develop competitive projects across the U.S. for a grand total of 5,000+ MW under development and 2,750 MW currently in operation. To help put this in perspective, this is about as many constructed wind projects as have been built in California in the last 30 years. In energy produced this amounts to more than 9,000,000 MW hours per year, an amount almost equal to the state of Michigan's total net electricity generation.

Our team


  • Greg Buis

    Greg Buis
    Greg Buis has managed a wide range of Pioneer's wind energy business including involvement in every stage of key project development and transactions in the Western U.S. and ERCOT markets. Greg's experience with wind energy began as a developer with Airtricity, and continued as Director of Mountain West Development at E.On Climate & Renewables. During that time, he developed and implemented the strategy for entrance into key markets and managed projects from Texas to Alberta. Greg helped co-found Pioneer in 2010 and became its President in late 2014. Greg has a BA in Anthropology from Brown University and, with a fellowship from the National Science Foundation, he received a MSc. in Ecology from Colorado State University in Ft. Collins, Colorado.

  • Bobby Blunt

    Bobby Blunt
    Founder and Vice President
    Bobby manages transactional matters for Pioneer’s wind assets in development. Bobby works with the Pioneer team to resolve critical path development, permitting, interconnection and title issues to satisfy financial closing requirements and meet power-purchase commitments for late-stage projects. Since the company’s inception in 2009, Pioneer’s team has transacted on nearly 800 MW of wind projects that have been financed and are operating or currently in construction. Prior to co-founding Pioneer and in his 15+ years of experience in the utilities and energy markets, Bobby led to completion more than 500 MW of wind projects now in operation in ERCOT and managed more than 2,500 MW of wind projects in development for other leading energy companies. Bobby graduated with a B.A. from Southwestern University in Georgetown, Texas, and received his law degree from the University of Houston Law Center.

  • David Savage

    David Savage
    Founder and Vice President
    David Savage is a developer and attorney with broad experience obtaining permits and approvals for energy projects and addressing the environmental and natural resource aspects of new generation. David manages some of Pioneer's most complex permitting issues as well as sites in the Southeastern US. David's early career was in the field of air quality as Assistant Regional Counsel for the U.S. Environmental Protection Agency. Prior to founding Pioneer, he was a partner at the law firm Baker Botts, L.L.P., focusing on project permitting, climate change, regulatory compliance and renewable energy. David is a graduate of UNC Chapel Hill and received his JD from the University of South Carolina Law School in Columbia, South Carolina.

  • Cyrus Tashakkori

    Cyrus Tashakkori
    Founder and Vice President
    Cyrus Tashakkori is a solar and wind project developer with experience in all stages of project development throughout the U.S. Cyrus has particular expertise in solar development, having lead Pioneer’s successful solar activities since the company’s founding in 2010. Prior to founding Pioneer Green Energy, Cyrus spearheaded efforts by a major incumbent developer to enter the US solar market, working to establish the market entrance and development strategy and to create a substantial pipeline of solar projects. Cyrus is a graduate of UNC Asheville and received his MBA from UT Austin’s McCombs Business School and his MPAff from the LBJ School of Public Affairs.


  • Craig Adair

    Craig Adair
    Development Manager
    Craig is a wind developer in Pioneer’s Austin office.  Craig has managed development of some ofPioneer’s key Texas wind projects including the Green Pastures wind project.  Prior to joiningPioneer, Craig served as Chief of Staff for a leading member of the Texas Legislature, focusing on energy and environmental policy.  Craig has also served on several political campaigns and has worked in international human rights.  Craig holds a B.S. in Mechanical Engineering from Texas A&M University as well as Masters degrees in Public Affairs and Latin American Studies from the University of Texas at Austin.

  • Patrick Buckley

    Patrick Buckley
    Development Manager
    Patrick has been a member of Pioneer’s team since 2010 and currently manages the development of key wind and solar projects. He has managed some of Pioneer’s most complex projects in various markets, including California, Texas and the Southeast, bringing deep experience in the siting of greenfield sites, real estate transactions, community outreach and market strategy. Prior to joining Pioneer, Patrick worked in the natural gas business managing land rights and lease contracts across Texas. Patrick holds a BA from the University of Texas at Austin in Hispanic Studies and an MBA from the Thunderbird School of Global Management in Phoenix, Arizona with a focus on Global Finance.

  • Janice Davis

    Janice Davis
    Business Manager
    Janice is the Business Manager at Pioneer. She has eight years of experience in the renewable sector with emphasis in contract management. Most recently served as Lease & Title Manager at Eon Climate and Renewables, Inc. where she played an important role in the design and implementation of the company’s land management software. Led performance improvement process for her department and supervised a team of contract administrators. Janice holds a Bachelors degree in Public Accounting with a Minor in Business Administration from University of Campeche, Mexico.

  • Doug Herling

    Doug Herling
    Origination Manager
    Doug manages offtake origination and financial modeling at Pioneer Green Energy. In this capacity, he is responsible for all aspects of responding to RFPs, sourcing commercial and industrial offtake, working with hedge providers, financial modeling and valuation, and market research. Prior to joining Pioneer, Doug worked in the energy efficiency, carbon research, and venture capital industries. Doug holds a B.A. in Geology from Colgate University and received his MBA from UT Austin's Red McCombs School of Business.

  • Katherine Hinton-Rosenberg

    Katherine Hinton-Rosenberg
    Lease and Title Manager
    Katherine Hinton-Rosenberg is a member of the Austin office and manages Pioneer’s wind and solar land contracts. She is also involved with early-stage development and late-stage title work. Prior to joining Pioneer, Katherine worked for an Austin-based e-learning software company managing licensing and contracts. Prior to that she was a Paralegal working on legislative matters and finance and intellectual property litigation cases at Baker Botts, L.L.P. for 8 years. Katherine holds a BS from Texas State University and is currently working on a MPA at Texas State University.

  • Rebecca Maag

    Rebecca Maag
    General Counsel
    Rebecca Maag handles legal and transactional matters for Pioneer Green Energy, including negotiation of purchase and sale agreements for the company's wind and solar projects in development. Rebecca is also a certified mediator. Before joining Pioneer Green, Rebecca worked in the appellate division of the Office of the Attorney General of Texas. Rebecca holds an undergraduate degree in business from the Kenan-Flagler Business School at the University of North Carolina at Chapel Hill, and she received her JD from the University of Texas School of Law.

  • Sergio Trevino

    Sergio Trevino
    Development Manager
    Sergio is a wind developer and attorney with Pioneer's Western U.S. Unit. Before joining Pioneer he practiced law, specializing in debt restructuring and bankruptcy. In this capacity, he was responsible for all aspects of litigation, engaging county, state, and federal authorities, and negotiating with regional and national financial institutions. Sergio is also an educator — certified by Texas Teaching Fellows — with experience in challenged school systems and low-income communities. Sergio is a graduate of the University of Texas at Austin and received his JD from the University of Texas School of Law.


©2012 Pioneer Green Energy, LLC. All rights reserved. Pioneer Green Energy, LLC is an independent, closely held company not owned by or affiliated with any of the companies owning projects referenced herein.