Glow Energy

Unlocking Virtual Power Plants for rental properties

Y CombinatorWinter 2022AcquiredIndustrialsClimate

What they do

Problem

Rental property owners lack tools to coordinate and monetize building energy assets to improve sustainability and reduce costs.

Solution

Glow Energy provides software that enables rental properties to operate as Virtual Power Plants, optimizing and aggregating energy resources for financial and sustainability benefits.

Who it's for

Rental property owners and managers who want to manage building energy resources and participate in virtual power plant programs.

Founders

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.

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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.