"We are a small company with an absolutely Goliath product."
I’m joined by Bob Long, Executive Chairman of O-Hx, and an engineer with over 50 years’ experience in applied thermodynamics.
In 2017, Bob set out to solve what he calls “the holy grail of the renewable energy industry”, thermal energy storage. The result is the Energy Vault: a high-density thermal battery that can store and rapidly release cooling power, unlocking resilience and efficiency for industries where failure isn’t an option.
From vertical farms in Dundee to pharmaceutical giants and prospective NHS sites, O-Hx’s patented technology offers a cool storage solution. Bob shares how a chance client challenge sparked a four-year R&D journey, why surface area is the secret to thermal efficiency, and how AI-driven energy management is helping customers tap into the cheapest and greenest power on the grid.
We also discuss what it takes to commercialise an entirely new category of infrastructure, why chilled water is becoming a $600 billion global market, and how O-Hx plans to expand across every continent within four years. If you’re interested in the intersection of engineering ingenuity, sustainability, and scalable business models, this episode is for you.
This episode is sponsored by Sustainable Wealth Group.
Website: https://www.sustainabletimes.co.uk/all-news
O-HX Website:https://o-hx.com/
Contact: daisy.moll@sustainabletimes.co.uk
RISE Awards: https://riseawards2025.awardstage.com/#!/home
