About Us

CollectiveSun™, LLC, was created by seasoned professionals with deep domain expertise in finance and renewable energy.

Banks and other financial institutions continue to shy way from
funding loans or leasing programs for asset-rich organizations like
churches and private schools to make solar a viable option for them.

That's because most of the current incentives are embedded in the federal and state tax codes, and are therefore not accessible by nonprofit's that are tax exempt and don't have a tax liability.

CollectiveSun™ saw this problem as a major need: the small nonprofit category is one of the most underserved sectors in the distributed generation solar market. The solution is simply CollectiveSun™. We offer secure investments in solar with great returns for investors. The collective dollars raised from the investments helps fund the sustainable solar power project helping the nonprofit save on energy expenses, fuel the mission, and increase member engagement.

Click here to contact us and learn more.

Our Mission:
CollectiveSun™ works exclusively with nonprofit organizations to help finance sustainable solar power projects.

Our Vision:
The CollectiveSun™ platform brings nonprofits, investors, and solar installers together in a marketplace for solar, building lasting relationships, and creating value for all. We use solar power to help nonprofits save on energy expenses, stimulate engagement with members, and support their missions. CollectiveSun™ believes that promoting sustainability and financial responsibility enhances the important and compassionate service work performed by nonprofits in our communities.

Team Members


Lee Barken, CPA, LEED-AP is the Chief Community Officer at CollectiveSun™, LLC. He has broad industry experience in renewable energy project finance, environmental commodities consulting and public policy analysis. He is dedicated to helping nonprofit's develop economically viable energy projects. Lee writes and speaks on the topics of renewable energy project finance, green building and community financing.

Lee plays an active role on the board of directors of CleanTECH San Diego, The San Diego Venture Group, San Diego CoastKeeper and serves as treasurer on the board of the San Diego Workforce Partnership. Lee received a Bachelor of Science degree in accounting from San Diego State University where he graduated with honors and academic distinction.


Ian Campbell, Director of Marketing, brings almost 15 years of experience in strategic marketing and campaign development and execution. He specializes in leading early stage start-up companies into new markets, launching new products and services and realizing early revenue goals.

Ian also serves on the Board of Project Reach, sponsors the La Jolla Playhouse and City Ballet of San Diego, has been involved in fundraising for Team Rubicon and volunteers his time singing to the participants at The Glenner Center in Chula Vista, CA, an Alzheimer's center that offers adult day programs to individuals living with Alzheimer's Disease.


Matthew Brennan is the operations manager at CollectiveSun™, LLC. He is a solar installation expert with experience in both residential and commercial projects. In addition to being a talented entrepreneur, Matt's has a strong engineering and technical background. His experience includes founding SanDiegoSolarPower.com, a solar sales and procurement company with extensive market reach. Prior to SanDiegoSolarPower.com, he worked as an industrial engineer for a network equipment manufacturer, a sales engineer for electronic equipment manufacturers and an operations manager for an industry-leading mechanical engineering magazine. He brings his passion for solar power to CollectiveSun™, where Matt manages all aspects of installer relationships and project development.

Matthew received a Bachelor of Science degree in mechanical engineering from the University of New Hampshire.

Key Partners

  • Procopio


  • Tgg


  • Stalwart

    Public Relations