World leading thermal energy storage technologies


Sunamp designs and manufactures space-saving thermal energy storage solutions that make homes, buildings and vehicles more energy-efficient & sustainable while reducing carbon emissions and optimising renewables.

Public housing

See how to decarbonise domestic hot water in high-rise housing using our thermal batteries with heat pumps

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Housing development

See how domestic hot water is decarbonised in high-rise and low-rise housing with our proven heat batteries

Company news
Sunamp is pleased to sponsor the Retrofit 25 exhibition at the Building Centre in London, running now until 19 September 2025.
Commercial and industrial
Sunamp batteries optimise renewables which, in turn, reduces carbon emissions from businesses of all sizes, industrial facilities and organisations in the government, community and public sectors.
For UK installers and stockists

Plumbers, installers, stockists and specifiers, visit Sunamp’s UK information hub to find installation instructions, technical leaflets and training sessions about our range of thermal batteries.

Latest news and articles

Heat pump water heaters vs Sunamp Thermino heat battery: what works best with a heat pump

Designing low-carbon and contemporary homes? Here’s how compact heat batteries can help architects

Leadership transition at Sunamp

About us

Sunamp’s vision is of a world powered by affordable and renewable energy sustained by compact thermal energy storage. Our mission is to transform how heat is generated, stored and used to tackle climate change and safeguard our planet for future generations.

We’re a global company committed to net zero and headquartered in the United Kingdom. Recent expansion includes offices in New York and Zurich.

Contact us

We would love to talk to you about how you can use Sunamp thermal batteries to improve energy efficiency and reduce carbon emissions.

Contact us