Exergy3 logo — Ultra-high temperature thermal energy storage for industry

Exergy3

Ultra-high temperature thermal energy storage for industry

Founded 2023 United Kingdom Edinburgh, United Kingdom 23 employees Grant Total: $7.80M Renewable Energy, Clean Energy +1

General Information

Company Name Exergy3
Founded Year 2023
Location United Kingdom Edinburgh, United Kingdom
Employees 23
Industries Renewable Energy, Clean Energy, Energy Storage
Funding Stage Grant
Offices as of Jul 2026
Edinburgh, United Kingdom
Social

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Recorded by Bounce Watch from public sources. Every entry below carries the date we observed it, and when we have not looked recently the page says so rather than leaving silence to imply nothing happened.

Major Customer Win Sep 22, 2026

Exergy3 installed a 30 MWh system at the Annandale Distillery in Scotland, marking a significant customer win in the food and drinks industry.

About Exergy3

Exergy3 Limited is a clean-tech startup with a mission to decarbonize medium to large-scale enterprises through its innovative ultra-high temperature energy storage technology. Founded in 2023 as a spinout from the University of Edinburgh, the company is focused on developing and commercializing cutting-edge solutions for renewable energy, clean energy, and energy storage industries.

Their slogan, "1000°C+ thermal energy storage to decarbonise medium to large-scale enterprises," encapsulates the core value proposition of their technology. Exergy3 aims to revolutionize industrial processes, district heating systems, and combined heat and power through their innovative approach.

In September 2023, Exergy3 secured a significant grant investment of £3.60M from Innovate UK, further propelling their journey towards sustainable and efficient energy solutions. With their headquarters in the United Kingdom, Exergy3 Limited is positioned to make a meaningful impact in the global transition towards a low-carbon future.

Taxonomy: clean-tech, energy storage, decarbonisation, industrial processes, district heating systems, combined heat and power, ultra-high temperature, spinout company, University of Edinburgh, carbon dioxide emissions, technology commercialization

Funding Rounds & Investors (3)

View All
Funding Stage Amount Investors Lead Investors Date
Grant £3.60M 1
UK government
12 Sep 2023
Grant £600.00K 1
Scottish Enterprise
28 Jun 2023
Grant £3.60M 1
Department for Science, Innovation and Technology (DSIT)
28 Jun 2022

Exergy3 Alternatives & Competitors

View All Alternatives
Exergy3 vs
Caldera
Caldera United Kingdom

Making zero-carbon heat the new norm │ Paving the way for a faster & smoother energy transition

Equity Crowdfunding
24 employees
Energy, Manufacturing
Exergy3 vs
247Solar, Inc
247Solar, Inc United States

The first complete application of high-temperature solar power with overnight storage for clean heat...

Series B
20 employees
Energy, Renewable Energy
Exergy3 vs
Fortum
Fortum Finland

Our purpose is to power a world where people, businesses and nature thrive together. 

IPO
5196 employees
Energy, Renewable Energy

FAQ About Exergy3

Ultra-high temperature thermal energy storage for industry
Exergy3 was founded in 2023.
Exergy3 is headquartered in Edinburgh, United Kingdom.
Exergy3 operates in Renewable Energy, Clean Energy and Energy Storage. Its work centres on clean-tech, energy storage, decarbonisation and industrial processes.
Exergy3 has approximately 23 employees.
Exergy3 has completed 3 funding rounds, raising a total of $7.80M. The latest funding stage is Grant.
Top alternatives and competitors to Exergy3 include Caldera, 247Solar, Inc, Fortum, Antora Energy, MAS Energy, LLC. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
Exergy3 and Caldera are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for Exergy3, https://bouncewatch.com/company/exergy3-limited, updated 25 September 2026. When citing, please name BounceWatch and link this page.

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