Exergy3 develops ultra-high temperature thermal energy storage systems that convert surplus renewable electricity (including curtailed wind power) into high-temperature heat for industrial applications. The company is led by CEO Markus Rondé and is based in Edinburgh, Scotland. Following the £10M Seed raise, Exergy3 plans to scale manufacturing capacity and expand its team to support broader deployment at industrial sites. Its stated focus is turning excess renewable generation into usable energy rather than letting it go to waste. The company’s current financial update is the newly closed seed financing; no revenue or user metrics were reported in the article.

Total raised

$18M

Funding rounds

2

Latest round

Seed

Latest activity

Apr 2026