Adam Cohen is co-founder and CEO of Ranger Power. Adam has over 18 years of experience in the renewable energy sector concentrated on the development, construction, and operation of clean energy projects. During his career Adam has successfully developed over 4,000 MW of operating energy projects.
At Ranger, Adam leads all high-level project development, corporate management, and company strategy. Under his joint leadership with co-founder Paul, Ranger Power has permitted roughly 3,400 MW and executed over 3,600 MW of utility-scale Power Purchase and Build-Own-Transfer agreements representing some of the largest volumes of solar development in the Midwest. By the end of 2025, over 2 GW of Ranger clean energy projects will be in commercial operation–representing over $1 billion dollars of new investment directly into local communities.
Previously, Adam served as President and founder of Ranger Solar and Ranger Energy (part of the Ranger Group), which developed and sold over 1,400 MWs of utility scale solar projects in the New England and Mid-Atlantic energy markets. These projects are now owned by a leading energy company and represent some of the first long term contracted solar assets in their region that offer on-peak, cost-effective energy to local utilities while providing new economic development to businesses and customers. Prior to forming Ranger, Adam was a founding team member and Vice President of Pioneer Green Energy, which brought to construction and into operation over 1,000 MW of new wind and solar projects under across the U.S. Adam has also led wind development projects into commercial operation while at E.ON Climate and Renewables and Airtricity. Adam is a graduate of Northwestern University in Evanston, Illinois
Paul Harris is co-founder and President of Ranger Power.
At Ranger, Paul is responsible for overall management and strategic direction, as well as overseeing project development, legal, finance, interconnection and business development.
Under his joint leadership with co-founder Adam, Ranger has pioneered the expansion of solar energy over the past decade, developing and constructing first of their kind utility scale projects in the Mid-Atlantic, New England, and Midwest. Ranger Power has permitted roughly 3,400 MW and executed over 3,600 MW of utility-scale Power Purchase and Build-Own-Transfer agreements representing some of the largest volumes of solar development in the Midwest. By the end of 2025, over 2 GW of Ranger clean energy projects will be in commercial operation–representing over $1 billion dollars of new investment directly into local communities.
Previously, Paul was the co-founder of Ranger Solar and Ranger Energy (part of the Group of companies). These companies are credited with developing a market leading utility scale solar projects on the east coast. Leading with Ranger’s community driven approach, Ranger Solar and Ranger Energy successfully permitted and contracted among the largest portfolios in the region. Prior to forming the Ranger Group, Paul managed a portfolio of wind and solar projects at Pioneer Green Energy. Paul is a graduate of the University of Colorado, Boulder.
Danielle Changala serves as Chief Operating Officer of Ranger Power. Danielle has over a decade of experience in the renewable energy industry and previously served as General Counsel of Ranger Power and Ranger Solar. She has worked extensively in renewable energy development, policy, energy regulation, and environmental law. Prior to joining the Ranger companies, she worked in private practice where she represented renewable energy developers and utilities on a variety of regulatory, permitting, real estate, and transactional issues. Danielle is a graduate of the University of California, San Diego and holds an M.A. in Environmental Law and Policy and a J.D. from Vermont Law School. Danielle is admitted to the California and Vermont bars and has published in the Energy Law Journal, the Electricity Journal, and Vermont Journal of Environmental Law. Danielle currently serves on the Board of the Michigan Energy Innovation Business Council.
CJ Walsh leads Ranger Power’s project development work. CJ directs the Ranger Project Portfolio from initial site selection and diligence through the construction process with a focus on stakeholder engagement, permitting process, and local economic benefits to the community. Prior to joining Ranger Power, CJ worked at Ranger Solar as a development manager, responsible for developing a portfolio of early-, mid- and late-stage projects in New England. These sites were some of the first community supported utility scale projects in the region that provided direct economic benefits to the public in the form of tax stabilization agreements, job creation, and new revenues to the town and county. CJ holds a Bachelor of Arts in Environmental Science from University of Colorado, Boulder.
Alexandra leads the Business Development Team’s power marketing efforts, sourcing power purchase and other agreements for projects in Ranger’s portfolio. Alexandra ensures our clients, utilities and C&I customers, have the most cost-effective clean power solutions to meet their energy needs. Alexandra also helps to lead M&A activity for Ranger. Prior to joining Ranger, Alexandra worked for a non-profit in New York City as Director of Development. As Director of Development, Alexandra was in charge of all fundraising activities, including marketing/communications, events, and grants, in order to raise the organization’s annual operating budget. Alexandra is a graduate of Middlebury College.
Larry Borum III is an Engineer I for Ranger Power’s Transmission and Interconnection team. In this role, Larry’s responsibilities include performing transmission power flow studies to enable renewable energy grid integration, and interconnection queue management of Ranger Power’s generation portfolio. Prior to joining Ranger Power, Larry completed a Fellowship with the Department of Energy (DOE) as a Clean Energy Innovator Fellow. During his time there he worked with the Illinois Commerce Commission, supporting the Federal Policy Planning and Integrated Distributed Planning Division. Larry obtained his MS at the University of Michigan in Environment and Sustainability from the School for Environment and Sustainability (SEAS) and his BS from Eastern Michigan University in Engineering Physics.
Oliver Chag supports project development activities across the Ranger Power portfolio. Within this role, his responsibilities focus on land acquisition and management, coordination of necessary environmental studies and permitting, as well as community engagement with local stakeholders. Prior to joining Ranger, Oliver focused on greenfielding efforts across the country for new wind and solar projects. Oliver’s experience crosses several sectors of the solar industry, including residential solar installation and operations. Oliver holds a Bachelor of Science degree in Business Administration from Ithaca College.
Michael Dantzler supports the development efforts of the Ranger Power team as the Senior Director of Transmission. He leads the team responsible for all engineering facets of interconnection, transmission, and grid renewable project integration. Michael’s focus is on developing the strategy for current and future development projects within Ranger’s portfolio, which builds off his 23 years of experience in transmission planning, system operations, business process development and optimization, and compliance management. Michael’s experience includes nearly 15 yeas of work with the Midcontinent Independent System Operator (MISO), where he performed expansion planning studies, and was instrumental in the development of MISO’s first Multi-Value Project (MVP) portfolio, justifying the addition of billions of dollars in transmission system upgrades. His leadership experience also includes a leading role in the development of corporate compliance and incident response teams at MISO.
Chelsea De La Grana serves as Ranger Power’s Head of People and Culture. She oversees people operations, culture, team engagement, professional growth, and HR-related responsibilities. Prior to joining Ranger Power, Chelsea worked for an educational technology company overseeing their people and compliance departments and developing their foundational people systems from scratch. Chelsea has 10 years of experience in people and operations and has worked for several companies in the tech industry supporting human resources, compliance, and operational initiatives. Chelsea holds a Bachelor of Arts from Cornell University.
As the Development Coordinator, Tenzin Dorjee manages corporate responsibilities and broadly assists the development team. Tenzin supports the management of projects across Ranger Power’s portfolio. Before joining Ranger Power, Tenzin served as an AmeriCorps member supervising youth organizations and helping build capacity in youth programs. Tenzin also worked for the UVM Spatial Analysis Laboratory as a GIS Technician, contributing to spatial assessments of environmental challenges. Tenzin is a graduate of Middlebury College with a BA in Geography.
Pete Endres leads project development on several projects in Ranger’s portfolio. With over 15 years in the industry, Pete is an experienced project developer in all aspects of renewable energy development from origination through commercial operation. Pete spent 7 years with juwi Wind in management and project development roles, working on wind energy projects across Midwestern states. Prior to joining Ranger full time, Pete spent 7 more years doing contract development work for various wind and solar clients. Pete has a BA in Geosciences from Williams College and a MA in Energy and Environmental Analysis from Boston University. He was raised on a commercial apple farm in Upstate New York that his family continues to operate.
Becca supports the legal department as Legal Assistant. In Becca’s role, she assists with real estate and legal issues, including real estate contracts, commercial agreements, and the maintenance of corporate records. Prior to joining Ranger Power, Becca worked as a paralegal at an Indianapolis law firm, providing administrative support and managing a large caseload as a direct client liaison. Becca holds a BA in criminal justice and sociology from Indiana University Bloomington.
Devan supports the Business Development team’s power marketing efforts, through strategic research and sourcing power purchase agreements. Prior to joining Ranger, Devan worked at the Soybean Innovation Laboratory, a international development organization, where he was responsible for expanding the labs outreach, creating economic focused reports for stakeholders, and developing educational material. Devan is a University of Illinois Urbana- Champaign graduate for both his M.S in Applied Economics and B.S in Environmental and Consumer Economics.
Claire supports project development activities across the Ranger portfolio, focusing on community outreach, permitting, and land management. Prior to joining Ranger, Claire was an active member of Sunrise Movement Chicago, a youth-led climate action group that focuses on sustainable energy legislation. She also served as a college access coach with AmeriCorps, where she helped underserved Chicago students realize their academic potential and successfully apply to undergraduate programs. Claire graduated from Loyola University Chicago with a Bachelor of Arts in Environmental Studies and a minor in Dance.
Brady Friss supports project development activities throughout the Ranger Power portfolio, specializing in permitting, community outreach, and land acquisition. Prior to joining Ranger, Brady worked in restoration ecology as a conservation crew lead for the City of Ann Arbor Natural Area Preservation department. He also spent time as a student ambassador for the Earth Day Network’s Vote Earth climate action campaign, focusing on voter registration amongst college students in Michigan. Brady is a graduate of Michigan State University.
Casey supports project development activities throughout the Ranger portfolio, focusing on community outreach, permitting, and land acquisition. Prior to joining Ranger, Casey worked as the Associated Students of Michigan State University (ASMSU) Director of Sustainability, where she advocated for zero waste initiatives and environmental education programs. Casey is a graduate of Michigan State University with a B.S. in Environmental Studies and Sustainability and Minors in Science, Technology, Environment, and Public Policy (STEPP) and Leadership in Integrated Learning (Bailey Scholars Program).
Ella supports project development activities across the Ranger Power portfolio focusing on community outreach, permitting, and real estate management. Ella began at Ranger in September 2024 as a Development Intern. She is a graduate of the University of Denver with a B.S. in Business Administration with a minor in Business Ethics and Legal Studies.
As a Senior VP of Development, Sean manages project development in several key states across the Ranger Power portfolio. In this capacity, he is responsible for managing development teams working in all stages of project development. Sean has successfully led the development of multiple projects that are now in the construction and operating phases. Prior to joining Ranger, Sean worked for the United States Department of Agriculture (USDA) in its sustainable agriculture laboratory, where he supported the farm industry and implemented USDA community stakeholder engagement initiatives. He has also worked as an Environmental Scientist at an engineering firm, where his responsibilities included Phase I/II Environmental Site Assessments, site remediation, and stormwater management plans. Sean holds a Bachelor of Science in Environmental Science and Policy from the University of Maryland.
Tea Harris supports project development activities throughout the Ranger portfolio, specializing in site selection, land acquisition, permitting, and community outreach. Prior to joining Ranger, Tea managed community outreach efforts for a non-profit to bring awareness of different environmental issues throughout communities in the Midwest. Tea graduated from the University of Wisconsin Oshkosh with a BA in Environmental Studies and German and with a minor in Geology.
Elizabeth Henley serves as Senior Counsel at Ranger Power, advising the company on the legal aspects of renewable energy projects, including development, corporate matters, permitting, regulatory compliance, and contractual agreements. Prior to joining Ranger Power, Elizabeth worked for a law firm representing watershed districts, local governments, and conservation organizations. She holds a J.D. and Master of Science from the University of Minnesota, and a Bachelor of Arts from Northwestern University. Elizabeth is admitted to the Minnesota bar.
Brooke supports greenfield and early-stage development throughout the Ranger portfolio, focusing tasks in site selection, land acquisition, permitting, and community outreach. Prior to joining Ranger Power, Brooke worked in housing advocacy, assisting individuals experiencing homelessness obtain short-term subsidized housing at All Chicago. She also completed an AmeriCorps year of service, serving as a literacy instructor, after graduating from Marquette University with a Bachelor of Arts in Political Science.
Zane Jones supports project development activities throughout the Ranger portfolio, specializing in land acquisition, permitting, community outreach, and coordination with key stakeholders. Prior to joining Ranger, Zane worked with SLR Consulting in the Environment, Sustainability and Governance department and with Utopian Power, where he created solar opportunities for public schools throughout southern Illinois. Zane graduated from the University of Michigan with a BS in International Studies and with minors in Energy Science and Computer Science.
Alex Kincaid supports project development activities throughout the Ranger portfolio, specializing in site selection, land acquisition, permitting, and community outreach. Prior to joining Ranger, Alex was a loan and grant officer for the U.S. government specializing in farm and small business emergency relief funding. Alex also has experience in investment advisory services, and he has worked for an Arkansas agricultural feed and fertilizer cooperative. Alex graduated from the University of Arkansas with a BSBA in finance with an emphasis in banking.
As Senior Vice President of Development at Ranger Power, Rosanne manages the development of early, mid, and late-stage projects across the Ranger Power portfolio. Rosanne has successfully led the development of multiple utility scale solar projects that are now in operation. She has over fifteen years of experience in project management, operations, and collaboration with cross-functional teams. Prior to joining Ranger Power, she worked for NBC Universal where she managed strategic partnerships to maximize growth and revenue. She played a key role in creating and successfully executing the off-platform distribution strategy for multiple brands. Rosanne is a graduate of The College of New Jersey.
Charlie supports project development activities throughout the Ranger portfolio, focusing on community outreach, permitting, and land management. Prior to joining Ranger, Charlie assisted in a range of research projects investigating global ecology, paleobotany, and conservation. Charlie graduated from Haverford College with a BA in Environmental Studies and a minor in Data Science.
Davis supports the Business Development team’s power marketing efforts through strategic research and power marketing for projects in Ranger Power’s active portfolio. Prior to joining Ranger Power, Davis attended the University of Pennsylvania, where he studied Economics with a concentration in Energy, Environment, and Sustainability.
Hugh McKee supports greenfield and early-stage development activities at Ranger Power and specializes in all aspects of site selection, land acquisition, and community outreach. Prior to working at Ranger Power, Hugh worked as an environmental field technician, specializing in invasive plant species management across the Midwest region. Hugh holds a bachelor’s in environmental science from the University of Illinois Urbana-Champaign.
Ashton supports project development activities throughout the Ranger portfolio, focusing on community outreach, permitting, and land acquisition. Prior to joining Ranger, Ashton worked as an Environmental Organizer with the Green Corps Field School, where she advocated for ocean and wildlife conservation initiatives and clean energy programs. Ashton is a graduate of Northwestern University with a B.A. in Environmental Science, Minor in Psychology, and Certificate in Sustainability and Energy.
Caitlin Reivers heads Ranger Power’s financial functions which includes managing all accounting, financial reporting, budgeting, audit, treasury, company HR and payroll, and company financial systems. Prior to joining Ranger Power, she worked in public accounting for small and large businesses. There she performed a wide array of functions, including tax preparation, financial audits, and bookkeeping. She also had exposure to an array of industries, from non-profit corporations to real estate to environmental consultancies. She is a member of the New York State Society of CPAs and the American Institute of CPAs. Caitlin holds a Master of Science in Accountancy from Mercy College and a Bachelor of Science in Business Administration with a concentration in Finance from The State University of New York at Buffalo.
Gerardo supports the legal department as Legal Assistant. In his role, Gerardo assists the legal department in the preparation and management of commercial agreements and corporate matters. Prior to joining the Ranger Power team, Gerardo worked at a law firm, assisting the litigation department in matters ranging from environmental law to federal whistleblower cases. Gerardo holds a BA in Latin American Studies from Pomona College.
Olivia supports greenfield and early-stage development throughout the Ranger portfolio, focusing tasks in site selection, land acquisition, permitting, and community outreach. Olivia is a graduate of Loyola University Chicago with a B.S. in Environmental Science: Food Systems and Sustainable Agriculture and has diverse research experience in the energy policy and environment science field. Prior to joining Ranger, Olivia served in the U.S. Army Reserves as a Medic from 2017 to 2023.
Ron Slagel supports the development efforts of the Ranger Power team as Director of Transmission. He leads all engineering facets of interconnection, transmission, and grid renewable project integration throughout the development of Ranger’s portfolio. Ron focuses on optimizing project site selection which builds off his 15 years of experience in transmission and resource planning, operations, and market engineering throughout the United States. Ron’s experience also includes over a decade of work with the Midcontinent Independent System Operator (MISO) where he performed Interconnection studies, coordinated seams issues with PJM & SPP and was instrumental in transitioning MISO’s Interconnection Queue from sequential bi-lateral analysis to group deliverability (NRIS).
Colin Snow manages development activities of early, mid, and late-stage solar projects throughout the midwestern United States. His expertise include land owner engagement, permitting and community outreach. Colin joined Ranger after over a decade of experience in the field of social work. Before joining the team, Colin was the Director of Social Services for the Washington House Continuing Care Retirement Community. Colin has a BA from Vassar College and an MSW from the Silberman School of Social Work at Hunter College.
Emily Straka assists with the management of all early, mid, and late-stage project development. In this capacity, she is responsible for assisting in land acquisition, permitting, project management and community outreach. In addition, she works on business development initiatives, including seeking new engagement opportunities for Ranger Power’s project portfolio. Prior to joining the Ranger team, Emily volunteered with several nonprofits working to promote bipartisan climate solutions, and local clean energy efforts in Denver. Emily first joined Ranger as an intern. She holds a BS in Environmental Science from Metropolitan State University of Denver.
Owen Speth manages development activities of early, mid, and late-stage solar projects throughout the United States. He specializes in permitting, community outreach, and land acquisition. Prior to joining Ranger, Owen worked as a research assistant studying the environmental impacts of solar panel construction. Owen is a graduate from Hobart and William Smith colleges with a B.A. in Economics and International Relations.
Courtland Talmage serves as Legal Operations Coordinator at Ranger Power. He assists the Legal department over the entire project development lifecycle and is responsible for leading real estate management at Ranger Power. Prior to joining the team, Courtland worked at a Boston-based nonprofit, planning and hosting legal-economic conferences in Washington, DC and in the European Union. Courtland holds a BA in Economics from Bowdoin College.
Grayson supports greenfield and early-stage development activities at Ranger Power and specializes in all aspects of site selection, land acquisition, and community outreach. Prior to joining Ranger, Grayson worked at Common Energy where he educated community members about community solar projects in their area. Grayson is a recent graduate from DePaul University with a B.A. in Environmental Studies and a minor in Spanish.
Sergio Trevino is Vice President of Permitting at Ranger Power. Sergio is responsible for planning and coordinating Ranger Power’s permitting to ensure each project is supported by local and community stakeholders while complying with all local, state, and federal guidelines. Sergio has extensive experience in developing and permitting complex energy projects from greenfield into operation. Prior to joining Ranger Power, Sergio was a Development Manager at Pioneer Green Energy, bringing over 1,200 MW of renewable energy projects into operation. Sergio has a JD and BA from the University of Texas at Austin.
Toby Valentino supports project development activities across the Ranger Power portfolio. Currently, Toby is focused on various aspects of development within Ranger’s mid and late-stage projects. Prior to joining Ranger Power, he worked at the Institute of Public Utilities at Michigan State University aiding research on State utility commissions and various utility policies across the country. Toby also spent time at the Michigan Energy Innovation Business Council, a Midwest renewable energy focused trade association, working to provide members with detailed analysis of MPSC active cases and workgroups. Toby is a graduate of the James Madison College at Michigan State University.
Drew Vielbig manages several renewable projects with a focus on early, mid, and late-stage development. Drew is experienced in project development from greenfield to construction. In his role as Director of Development, Drew manages land acquisition, community and stakeholder engagement, permitting, survey, title, pre-construction, and FNTP coordination across several key states where Ranger Power is active. He grew up farming his family’s fifth-generation farm in Livingston County, Michigan. Drew holds a BBA in Marketing and Management from Grand Valley State University.
Manisha Virupannavar serves as Senior Accountant at Ranger Power supporting the Accounting team’s financial functions and leading real estate compliance across the Ranger Power portfolio. Prior to joining Ranger Power, Manisha worked for an IT Auditing and Cybersecurity firm as a Staff Accountant to support all internal Accounting functions. She also had exposure to financial reporting, accounts payable, accounts receivable, budgeting and managing financial operations to environmental consultancies and IT firms. Manisha holds a Bachelor of Science in Business Administration with a concentration in Finance from Roosevelt University.
As Director of External Affairs, Ryan Wardin oversees strategic policy and legislative initiatives, coordinates regulatory and stakeholder engagement, and leads media and marketing efforts. Ryan has over 15 years of government relations experience where he has focused on driving meaningful advancements in energy policy and innovation.
Before joining Ranger Power, Ryan served as a government relations consultant in Lansing, Michigan, where he successfully guided clients through complex legislative processes. His leadership was pivotal in shaping Michigan’s energy landscape, including playing a key role in the passage of transformative renewable siting reform legislation.
Veronica supports greenfield and early-stage development activities at Ranger Power and specializes in all aspects of site selection, land acquisition and community outreach for both wind and solar projects. Prior to joining Ranger Power, Veronica worked in the environmental education and justice fields, and conducted research investigating environmental communications. A graduate from Chapman University, Veronica attained a B.S. in Environmental Science and Policy with a minor in Peace Studies.
Hope supports the development of several early, mid, and late-stage utility-scale solar projects throughout Ranger Power’s portfolio. Her responsibilities focus on land management, community engagement, and permitting. Prior to joining Ranger Power, Hope received an M.S. in Energy from Texas A&M University and a B.S. in Ecology and Natural Resource Management from Louisiana State University.
