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Glow Energy

Unlocking Virtual Power Plants for rental properties

Glow Energy is a mission-driven company dedicated to making the built environment more sustainable. Our software empowers rental property owners to transform their buildings into Virtual Power Plants that drive sustainability and financial benefits for tenants, property owners, and clean energy infrastructure developers.
Active Founders
Greg Sirotek
Greg Sirotek
Founder
Greg is the co-founder and CEO of OpenCoreEMR, launched in June 2025 with Open Core Ventures to commercialize OpenEMR, the world’s most widely used open-source electronic health records platform. Previously, he was co-founder and CEO of Glow Energy, acquired by Ivy Energy in 2024. Earlier, Greg co-founded a proptech startup that led to his role at Airbnb, where he helped reaccelerate host growth and later served as Head of Home Experience, Luxe.
Ross Gruber
Ross Gruber
Founder
Ross is the co-founder and CTO of Glow Energy. Ross was previously a lead data engineer and engineering manager who helped scale engineering teams at YC and VC-backed startups like Dia&Co and Upkeep. Ross is passionate about sustainability and is focused on building decarbonization as a crucial building block on our way to a net-zero future.
Glow Energy
Founded:2022
Batch:Winter 2022
Team Size:6
Status:
Acquired
Primary Partner:Gustaf Alstromer