World Leading Thermal Technologies

Specialists in Thermal Energy Storage Solutions

Sunamp delivers market leading thermal energy storage to homes, businesses and communities around the world.

Sunamp’s unrivalled super-compact Heat Battery technology has been intelligently designed to provide a clean, efficient and cost-effective thermal energy storage solution.

Working with everything from gas boilers to solar and heat pumps, Sunamp Heat Batteries deliver cascades of hot water and highly responsive space heating with superb efficiency and proven savings of up to 75% on utility bills. This outstanding technology comes at an accessible price and offers limitless scalability for residential, commercial or industrial projects.

The World’s Most Energy Efficient and Compact Thermal Energy Storage

The UniQ Range

Flexible. Reliable. Affordable.

Store more energy in less space with the new Sunamp UniQ range of Heat Batteries, a flexible solution to upgrade your hot water and heating systems.

UniQ Heat Batteries replace traditional cylinders, enhance your combi boiler, and integrate renewables.

They are easy to fit, low maintenance and have a lifespan of over 40,000 cycles (the equivalent of over 50 years of average use).

UniQ 3


Replaces 70L cylinder


A+ ErP Rating

UniQ 6


Replaces 140L cylinder


A+ ErP Rating

UniQ 9


Replaces 210L cylinder


A+ ErP Rating

UniQ 12


Replaces 280L cylinder


A+ ErP Rating

For the Home

Our smallest Heat Batteries fit comfortably in tight spaces and are designed to provide cascades of hot water on demand. You can use them with solar PV and existing boilers. Plug one in to get hot water where you need it.

For larger homes, multiple Sunamp Heat Batteries can be easily linked, and work with heat pumps and off-peak electricity, to give you maximum comfort and significant savings.

Enquire about Sunamp Thermal Storage


Sunamp Automotive is set to revolutionise the automotive industry, with Heat and Cool Batteries designed to reduce air pollution, improve fuel efficiency in hybrid and conventional vehicles, and give maximum cabin comfort in electric vehicles without compromising range. 

Cars, vans, buses, trucks and off-highway vehicles can all benefit.

Commercial & Industrial

Scalability is at the heart of Sunamp’s vision, and our thermal storage technology can be shaped into any system, at any size, and in almost any industry.

Sunamp’s heating and cooling technology enables new ways of tackling existing industrial challenges, such as being able to use a container-scale Heat Battery to store waste heat where it is created, and move it to a point where it is needed.


We have created intelligently designed Thermal Storage to facilitate large community and commercial scale heat and cool, to enable demand management and reduce grid constraints.

This technology provides large scale static or transportable energy storage (200 kWh to multiple MWh) that can store energy from waste heat sources or electricity from grid constrained assets, such as wind farms and solar parks, and use it when or where demand requires.

Alternatively, it can deliver stored thermal energy to offices, housing developments, leisure facilities, district heating networks and any other site with a hot water, heating or cooling requirements. Our integrated approach means we provide a bespoke design service and assistance with moving heat within rural or urban environments. 

Enquire about Sunamp Thermal Storage