Our Team

Julia Davila

Drive Electric Colorado Initiative Leader 

Julia is a recent Environmental Studies graduate from St. Olaf College in Northfield, Minnesota but grew up in the Bay Area, California. She leads the Drive Electric Colorado initiative, including maintaining social media, planning consumer events, managing the Volunteer EV Coach program, and more. As a former Clean Cities intern, Julia is excited about the opportunities this role offers to work with consumers and stakeholders across the state. Julia enjoys a good hike every weekend, is a houseplant fanatic, and is always planning her next adventure. Email 

Specialties & Projects 

  • Drive Electric Colorado Program 
  • Event support 
  • Consumer EV education & communications
  • Stakeholder Engagement  

Contact Julia

Emily Harris



Originally from Bellingham, WA, Emily moved to Boulder, CO to pursue a Masters of the Environment at CU Boulder, focusing on renewable and sustainable energy while learning about the field hands-on as an intern with DCC. Emily focused research on wind power while living on Jeju Island, South Korea for two years, and the potential for islands with offshore wind to go carbon neutral. She is excited for what the future has to hold in renewables, EVs, and battery storage. In her free time, Emily loves to run and backpack, exploring the mountain ranges in Colorado; although different than the mountains in Washington, they are equally as beautiful! 

Contact Emily



Sonja Meintsma

Regional Lead – South

Sonja is a Project Manager at Drive Clean Colorado. She holds a Master of Public Affairs with a focus in sustainability and policy analysis from Indiana University’s O’Neill School of Public and Environmental Affairs (SPEA), as well as a Bachelor’s degree in Anthropology & African Studies from Macalester College in St. Paul, Minnesota—her home state. Sonja brings extensive community development experience to the team having worked as a grant coordinator for Girls Inc. of Monroe County (IN) and as a Peace Corps Volunteer in Zambia, where she focused on food security, income generation, and conservation agriculture. She has developed her knowledge and expertise on clean transportation and clean fuels through her work across the industry, having partnered with leading manufacturers, non-profits, and local governments to advance transportation electrification. She is dedicated to living sustainably and is motivated every day to fight for clean air and blue skies across Colorado. 

Specialties & Projects: 

  • Infrastructure development support & Charge Ahead Colorado support
  • Grant Writing & Project Management
  • Consumer EV Coaching
  • Event Support
  • Fleet Analysis & Transition Support 
  • Policy Specialist 

Contact Sonja

Kristi Mladenovic

Business Director 

Kristi is the Business Director at Drive Clean Colorado and came on to the team in January 2019. Kristi provides leadership in all areas of accounting and is responsible for administrative systems and data. She has over 20 years of experience in various senior accounting and financial analysis roles, directing the full spectrum of accounting and financial services from a $6B international firm to a diverse group of nonprofit organizations. She currently serves as a board president and treasurer for two local nonprofits. She is a 2nd Degree and Certified Instructor at a world-renowned Tang Soo Do martial arts academy. She received her bachelor’s degree from The George Washington University.  

Specialties & Projects:  

  • Events, contracts, reporting & invoicing  
  • Grant writing, team organization & budget preparation; onboarding of grants awarded  
  • Accounting software, payroll & CRM   

Contact Kristi

Gabriella Perkins

Events & Engagement Lead

Gabriella is the Events & Engagement Lead at Drive Clean Colorado and came on to the team in March 2020. Gabriella leads and provides support for all DCC events  and works with stakeholders and sponsors across the state. She has been working in the clean transportation industry since 2018. Within the industry, she has experience in roles including marketing, PR, events, and grant writing & analysis. She received her bachelor’s degree from Colorado State University.  

Specialties & Projects:   

  • Lead event support (for fleets, consumers, and businesses)  
  • Infrastructure development support  
  • Stakeholder/Sponsor Engagement
  • Charge Ahead Colorado Grant coaching  
  • Consumer EV coaching 

Contact Gabriella

Grace Taber


Grace is a Senior at Colorado State University studying Ecosystem Science and Sustainability with a double minor in Sustainable Energy and Political Science. Grace has a strong passion for understanding the interconnections between people, the environment, and sustainable innovation. In May 2022, Grace studied abroad in Copenhagen, Denmark to learn more about the sustainable energy policy and initiatives implemented there. She is excited to work alongside DCC to explore the variety of EV projects and outreach they are doing! In her free time, Grace enjoys going for walks on Colorado trails, trying new recipes, and reading outside.

Specialties & Projects:   

  • Drive Clean Colorado project support
  • Stakeholder/Sponsor Engagement
  • Event support 

Email Grace

Bonnie Trowbridge

Executive Director

Bonnie is the Executive Director of Drive Clean Colorado where she leads the charge toward achieving breathable air for everyone by advancing clean transportation and equitable mobility. Bonnie brings a deep knowledge of the market – from consumer EVs to alternative fuels to heavy-duty manufacturers and fleets, and a comprehensive understanding of the vehicle incentives arena across the U.S. – to her role. She is the co-chair for the Women of EVs Front Range chapter, the market development lead for Zeem Solutions, and is a Board member of the Colorado Department of Transportation’s Transit Enterprise Board. Her past experience includes nonprofit development and fundraising, grant writing and management, and events management, and she spent 11 years in public relations and marketing for Lightning eMotors, manufacturer of electric powertrains for medium- and heavy-duty buses and trucks, where she was instrumental in growing that company from a start-up to a thriving manufacturer. Her experience includes program management for CALSTART, a non-profit organization working to commercialize clean and efficient transportation solutions, where she led events such as a California policy summit, industry leader workshops, and utility engagement programs; and work she has worked as a development director for nonprofits in Denver and Washington, D.C. 

Contact Bonnie

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