Board of Directors

Sarah M. Keane, President/Chair

Sarah Keane, an attorney at Kaplan Kirsch and Rockwell, represents public and private entities on a variety of regulatory, transactional and litigation matters involving energy and infrastructure project development around the United States. She assists energy project developers in securing approvals and entitlements, negotiating project agreements, and advocating before regulatory bodies. Sarah also represents environmental non-profits to promote clean vehicle policies in Colorado. Sarah joined the GRID Alternatives Colorado Board in 2018. Her full biography is available at

Vicky Mandell

Vicky Mandell joined the GRID Alternatives Colorado Board of Directors in March of 2016 and has since proven to play an integral role in our local advocacy efforts. Throughout Ms. Mandell’s years of energy and utility experience, she has served as Assistant General Counsel for Xcel Energy and Senior Staff Attorney for Western Resource Advocates Energy Program. Ms. Mandell is considered to be an expert in Colorado’s energy field and has been invited as a panelist, presenter and trainer at numerous energy-focused conferences and seminars. GRID Alternatives Colorado is overjoyed to benefit from Vicky’s legal expertise and her passion for increasing access to renewable energy technology.

Brian Vickers/Treasure

Project Manager for juwi Inc, Mr. Vickers joined the GRID Alternatives Board in 2018. Since 1990, he has pursued his passion for project leadership through a number of diverse fields from environmental services to renewable energy construction. For juwi, Mr. Vickers is responsible for managing development and construction activities for utility-scale solar projects.

Mr. Vickers’ full bio can be found at

Larry Martinez

Larry Martinez was born and raised in Denver, Colorado. Prior to joining the staff of Denver Inner City Parish in 2002, Larry worked for a telecommunications company where he acquired skills that have proven to be very beneficial for His work in developing non-profit programs and centers. Starting at a young age, Larry has been an advocate for social justice. Growing up in East Denver during a time when gangs were very active, Larry had to navigate a path that cost many of his friends their lives or freedom. Larry has been a part of many collective-impact groups like the Colorado Food Pantry Network, Food Exchange and Resource Network, Full Lives Full Pantries, Closing the Hunger Gap, and several others. Larry’s proudest accomplishments are his three daughters and son.

Pete Dignan

Pete Dignan is the founder of Ever Better, a Colorado Public Benefit Corporation and Certified B Corp. He is also an Adjunct Instructor for the CU Leeds School of Business, where he teaches the course Certificate in Corporate Social Responsibility. Prior to his current work, Pete was the CEO of Renewable Choice Energy and ProtoTest, both Certified B Corps; and Executive Director of the nonprofit CORE (Connected Organizations for a Responsible Economy). He earned a BA in Environmental Science at the University of Virginia. 

Iffie Jennings

Iffie Jennings

Iffie Jennings works on the Community and Local Government Affairs team at Xcel Energy, where she responsible for managing the city and county political, business and company relationships on behalf of the company. Iffie Jennings brings a wealth of experience from the healthcare and strategic management setting in building key external partnerships with nonprofits, public and private sector clients. With over ten years of experience, she is adept at streamlining internal processes to bring innovative solutions to nationally recognized programs and projects. She earned her bachelor’s degree from Colorado State University and her MBA from Regis University.

Ryan Dulaney/Secretary

Ryan Dulaney has been in the solar industry since 2007, and during that time he has been an installer, designer, project manager, and department lead in the residential, commercial, and utility sectors. He has been a NABCEP-certified Solar PV Installation Professional since 2009 and has held the PMP certification since 2018. He is currently Director of Project Delivery at Generate Capital, a leading renewable energy infrastructure investor. Ryan has taught solar electric courses within the Energy Department at Red Rocks Community College and was named the Energy Project Manager of the Year in 2014 by the Rocky Mountain Chapter of the Independent Electrical Contractors (IECRM). He is energized and inspired by the work Grid Alternatives-Colorado performs and enjoys supporting the organization in any way he can.