Headquarters Staff

Executive Leadership

Erica Mackie, P.E., Co-Founder and Chief Executive Officer
Erica Mackie co-founded GRID Alternatives in 2001 and has developed it into a major national non-profit. Ms. Mackie has received numerous awards for her leadership of GRID Alternatives, including the Governor's Environmental and Economic Leadership Award in 2008, the New Leaders Council Energy Leadership Award in 2009, the James Irvine Foundation Leadership Award in 2010, the US Green Building Council’s Green Building Super Hero Award in 2010 and the 2013 Clean Energy and Empowerment Award from C3E. Ms. Mackie’s professional experience prior to GRID Alternatives included work in the social sector, first with survivors of domestic violence and then with youth at risk, as well as work in renewable energy and energy efficiency consulting and sales. She holds two bachelor’s degrees from Southern Illinois University, one in Mechanical Engineering and the other in Physics.
Tim Sears, P.E., Co-Founder and Chief Operations Officer
Tim Sears co-founded GRID Alternatives in 2001 and has developed it into a major national non-profit. He has shared with Erica Mackie numerous leadership awards for this work, and in 2014 was honored by the White House as a “Champion of Change” for Solar Deployment. Tim is a graduate of Stanford University with a degree in Civil and Environmental Engineering, and before starting GRID Alternatives managed consulting teams of engineers providing comprehensive energy efficiency retrofit recommendations and construction management of projects totaling over $3 million. Tim is also certified by the North American Board of Certified Energy Practitioners (NABCEP) as a Certified Solar PV Installer.
Peter Kodzis, Chief Financial Officer
Peter Kodzis serves as GRID Alternatives' Chief Financial Officer, providing strategic planning input and financial leadership since July 2015. Peter has over fifteen years of executive-level experience in financial and operations management of non-profit organizations. He has been engaged with non-profits focused on social equity, conservation of natural resources, social services/education, climate change and alternative transportation. Prior to joining the non-profit world Peter worked for companies in financial services and the marine transportation field. Peter holds an Executive MBA degree (with Honors) from St. Mary’s College of California and Master’s Degree in Marine Transportation and Management from Gdynia Maritime Academy, Poland. Peter enjoys kayaking, hiking and long motorcycle trips in the summer. During winter he can be found skiing the slopes of the Sierra Nevadas.
Zach Franklin, Chief Strategy Officer
Zach joined GRID Alternatives in 2006 and leads the organization's national fundraising and communications efforts. Prior to joining GRID, Zach worked in the affordable housing field in the areas of project development, fundraising, and community services, including launching Community Technology Centers at affordable housing complexes around the East Bay, and helping fund and develop housing facilities for low-income seniors and homeless families in Oakland and Richmond. He holds a degree in Economics and History from Brown University.

Construction & Workforce Development

Anna Bautista, Vice President of Construction and Workforce Development
Anna has broad experience in the solar industry as a site supervisor, hands-on trainer, and design and installation technician. In the private sector, she managed over $4M in residential and small commercial PV projects. She has worked on renewable energy projects and environmental justice campaigns in the Philippines, Haiti, and Costa Rica but is honored to share her skills locally to help democratize access to renewable energy and energy efficiency solutions and training. Anna has a degree in Electrical Engineering from MIT and is proud to represent among other women who are NABCEP Certified Installers in California.
Commercial Construction Manager
Safety Officer
SolarCorps Volunteerism and Collegiate Program Fellow
Workforce Development Coordinator
Project Manager
Volunteerism and Collegiate Programs Manager
Project Associate
Director of Workforce Development
National Construction Manager


Director of Institutional Giving
Corporate Development Officer
National Partnerships Coordinator
Director of Corporate Partnerships
SolarCorps Development Fellow
Development Officer


Julian Foley, Director of Communications
Julian has Master's degrees in Journalism and Latin American Studies from UC Berkeley, and has worked in non-profit development and communications on and off for 10 years. Having grown up in Village Homes, a passive solar community in Davis, CA that was built in the 1970s, she is thrilled to be part of a renewed solar movement.
Graphic Designer
Communications Coordinator
Digital Communications Manager
Marketing Director

Policy & Programs

Stan Greschner, Vice President of Government Relations & Market Development
Stan directed the country’s first low-income solar incentive program (California’s SASH Program), and works closely with policy makers, regulators, utilities, solar companies, and community organizations throughout the country to expand solar access and jobs to underserved communities. Stan holds a bachelor’s degree in bio-mechanical engineering from Marquette University, and a master’s degree in philosophy and public policy from American University. Stan also has a professional background in mechanical engineering, contract manufacturing, and international development programming.
Program Manager, Multifamily Housing
Multifamily Housing Manager
Program Manager
Policy and Regulatory Manager - Community Solar
Multifamily Program Coordinator
Program Manager
SolarCorps Programs Fellow
Senior Programs Director
SolarCorps Programs Fellow
Program Coordinator
Program Assistant
SolarCorps Multifamily Program Fellow
Multifamily Program Coordinator
Program Coordinator
Program Coordinator
Program Manager


Jeff Coleman, Vice President of Outreach
Jeff has been a leader at the intersection of technology, organizing, and social impact for more than a decade. Since 2003, Jeff has helped leading nonprofits, labor unions, campaigns, and startups build large-scale grassroots organizations by combining traditional community organizing practices with smart, strategic opportunities to leverage emerging technology. Jeff has been a founding executive, advisor, and consultant to social impact startups including Farmigo, Amicus, and Organizer Inc. - technology platforms that empower citizens to organize and bring change to their communities. Prior to that, as Deputy Field Director in 2008 and Senior Advisor in 2012, he was instrumental in developing the groundbreaking organizing strategy of Barack Obama’s historic presidential campaigns. He studied Geographic Information Systems at San Francisco State University.
Director Family Services
Outreach Associate
Outreach Program Assistant

International Program

Jenean Smith, Director of International Programs
Jenean is an advocate for the advancement and use of renewable energy technologies. She joined the solar industry in 2007 and has worked for Mitsubishi Electric's Solar Division and Trojan Battery Company's Renewable Energy Division. She is the founder of Power to the People, a non-profit organization that helps bring renewable energy solutions to the developing world, and facilitated its acquisition by GRID Alternatives. Before working in the solar industry, she was the Youth Program Director for the Riecken Foundation in Honduras where she created a youth leadership program for rural Honduran teenagers in 33 communities. Before her time in Honduras, she was a small business/IT volunteer in the Peace Corps in San Lorenzo, Nicaragua where she worked with community members to create a financially sustainable community library, teaching people basic computer and business skills.
Country Manager
International Program Coordinator
Solar Technician
Office Manager
Field Project Manager
Field Project Manager
Solar Technician

Tribal Program

Tim Willink, Director of Tribal Programs
Tim Willink joined GRID in 2014 to lead its new National Tribal Solar Program, bringing solar power and job training to tribal communities nationwide. Mr. Willink earned his B.A. in economics from Cornell University and worked as a lobbyist for the Navajo Nation Washington Office representing the tribe in economic development and education. After living and traveling throughout the United States and Canada, he settled in Colorado and spent six years with Namaste Solar as a Field Supervisor for commercial solar installations. A Navajo from Pueblo Pintado, New Mexico, Mr. Willink has a deep understanding of energy issues on tribal lands, and aims to partner with tribes on both residential and commercial projects in order to bring solar to tribal communities across the country.
SolarCorps Construction Fellow
SolarCorps Construction Fellow
Tribal Program Coordinator
Solar Installation Supervisor

HR & Admin

Katie Kerr, HR Director
Katie started at GRID as an AmeriCorps VISTA volunteer and has since transitioned into her role in HR building the department from the ground up. She graduated from Boston University with a BA in Sociology. She hails from sunny Philadelphia but now calls the Bay her home. She is deeply committed to creating an inclusive environment at GRID Alternatives where staff, clients, volunteers, and partners have a space to grow and feel heard.
Administrative Assistant
SolarCorps Program Manager
Executive Assistant
Office Manager
HR Coordinator
HR Coordinator


Steven Fernandez, Director of Operations
Steven has a degree in International Relations with a minor in Geography from Florida International University. After college he returned to his hometown in Pennsylvania and worked for a law firm in downtown Philadelphia, but found a new passion in solar technology. He enrolled in a Photovoltaic program offered by the City University of New York and soon after found work with a small renewable energy company. His desire to help others, implement renewable technologies, and enjoy the great outdoors lead him to California in 2008, where he joined GRID Alternatives' San Diego office as an AmeriCorps VISTA. From that humble beginning he has worked in several different positions with GRID Alternatives, giving him a great understanding of the organization and more passion for GRID's mission. In 2010 he moved to San Luis Obispo County to establish and lead GRID Alternatives' Central Coast office. After helping to launch our New York Tri-State office, Steven went on to take a role as Director of Operations with the GRID Alternatives Headquarters team. Steven is a NABCEP Certified PV Installation Professional and licensed NJ Electrician.
Logistics Coordinator
Operations Assistant
Customer Care Specialist
Operations Manager
Customer Care Specialist
Customer Care Specialist


A/R Staff Accountant
Interim Controller