Joe Marhamati | Co-Founder
Sunvoy

Joe Marhamati, Co-Founder, Sunvoy

I’ve spent every day of my 17-year career in solar. I started at the U.S. Department of Energy in 2008, when the Loan Programs Office was writing the playbook for deploying billions in cleantech—backing some of the first utility-scale solar projects and the Tesla Fremont facility. But I wanted to build, not just fund. In 2016 I left government to co-found Ipsun Solar, growing it from zero to $12M in revenue with 60+ employees, delivering everything from residential rooftops to commercial systems—including the Constitution Center on the National Mall. Along the way, one thing kept bugging me: the moment we energized a system, customers disappeared into manufacturer apps. We’d lose the relationship we’d spent months building—many couldn’t even remember our name. That’s the problem Sunvoy solves. Built by installers for installers, Sunvoy helps you own the customer relationship for 30 years, not 30 days. Since selling Ipsun in April 2024 to focus full-time on Sunvoy, we’ve helped 50+ solar companies worldwide strengthen their brands and generate more referrals by keeping homeowners in the installer’s ecosystem instead of handing them off to manufacturers. When I work with solar business owners, I focus on what moves the needle: lowering cost of acquisition, running customer-first operations, building teams that execute, and creating systems that scale with less chaos. Ready to own your customer relationships? Connect with a note saying “solarcoaster” or email me at joe@sunvoy.com.

Appearances:



Day 3 - 25th September @ 14:10

Innovation hour: Using technology to improve installations, compliance and customer experience

Join us for Innovation Hour, where emerging companies and new ideas take the spotlight. This session will showcase practical technologies, tools, and approaches that aim to improve how we generate, store, and manage energy. A chance to hear directly from innovators working on real solutions for the future of solar and storage in the UK.

 

  • 14:10 - Jo Fleming, Corrie Energy 
  • 14:20 - Joe Marhamati, Sunvoy 
  • 14:30 - Ashley Grealish, Windfall Energy
last published: 12/Sep/25 11:05 GMT
last published: 12/Sep/25 11:05 GMT

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