Annandale Distillery
Exergy3 has designed, built, commissioned, and now operates the UK’s first full-scale high-temperature thermal energy storage system.

Location: Dumfries and Galloway, Scotland
Exergy3 has designed, built, commissioned, and now operates the UK’s first full-scale high-temperature thermal energy storage system. The technology absorbs surplus renewable electricity during periods of network constraint and converts it into high-grade heat, stored at temperatures of up to 1,200°C and released on demand as industrial heat or steam.
The industrial-scale demonstrator at Annandale Distillery, located comprises three modular storage units with a combined capacity of 30 MWh, delivering up to 3 MW of high-temperature, fossil-fuel-free steam for distillation.
Transport and installation: the system was installed within four days.
Strategic importance:
- Industrial energy is one of the most challenging to decarbonise and commercially viable approaches to electrification are therefore crucial.

Photo credit: Exergy3 / Caption: A 10 MWh storage module during transport to the distillery