Exergy3 offers a modular high‑temperature sensible heat storage system that converts surplus renewable electricity into thermal energy up to 1,200 °C, delivering on‑demand heat for continuous industrial processes. The solution replaces or co‑fires with fossil‑fuel burners, reducing emissions and helping grid operators balance renewable generation, and can be scaled from pilot units to multi‑MWh installations with minimal retro‑fit.
Funding
$14.7M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
ZCFounders
Product
Problem
Industrial processes such as chemicals, cement, steel, and distillation require continuous high‑temperature heat, which is currently supplied by fossil fuels. Decarbonising this heat is difficult because high‑temperature energy storage options are limited, and large amounts of renewable electricity are curtailed due to the lack of scalable storage.
Solution
Exergy3 provides a high‑temperature sensible heat storage system that captures surplus renewable electricity and stores it as thermal energy up to 1,200 °C. The stored heat can be released on demand to replace or supplement fossil‑fuel burners, enabling continuous industrial heat without emissions. The technology is modular, allowing rapid scaling from pilot to commercial size, and can be co‑fired with traditional fuels to ease integration. By charging when electricity prices are low and delivering heat with minimal losses, the system also helps balance the grid and reduces the cost of renewable energy. Proven deployments demonstrate that the solution can be installed in existing plants with limited retro‑fit work.
Target Audience
Heavy‑industry manufacturers that need continuous high‑temperature heat (e.g., chemicals, cement, steel, pharmaceuticals, and distilleries), as well as district‑heating networks, data‑centre operators, and grid managers seeking to balance renewable generation.
Features
- Sensible heat storage capable of reaching temperatures of up to 1,200 °C
- Modular design that can be scaled from small units to multi‑MWh installations
- Ability to charge using surplus renewable electricity and discharge heat on demand
- Low thermal loss storage delivering heat precisely when needed
- Co‑firing option with traditional fuels for flexible integration
- Rapid deployment demonstrated by a 30 MWh industrial demonstrator built in under two years
- Proven pilot at Annandale Distillery converting curtailed wind power into 530 °C steam for whisky production