World leading thermal storage technologies
Sunamp designs and manufactures space-saving thermal storage that makes homes, buildings and vehicles more energy-efficient and sustainable, while reducing carbon emissions and optimising renewables.
Company news
Sunamp awarded £9.25 million UK Government funding to tackle greener heat challengeCommercial and industrial
Discover how to reduce carbon emissions from businesses of all sizes by using thermal storage to optimise renewable energy useFor 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.
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Super-compact thermal batteries
How it works
Storing heat and releasing it on demand
Optimising renewables
Our thermal batteries support the electrification of heat.
They work with heat pumps, wind and solar, grid and microgrid electricity, waste heat, combined heat and power (CHP) and boilers.
And store 4 to 10 times more energy than conventional materials.
Sustained with Plentigrade
Sunamp’s patented Plentigrade technology stores energy in our high-performance phase change materials and releases it to give hot water, heating or cooling on demand.
Long lifespan with best-in-class reliability rating.
Wide temperature range
Plentigrade discharges at a consistent, controlled temperature.
Reliably, safely and efficiently.
This means our thermal batteries can be used to freeze (-30°C), refrigerate (5°C) or warm (58°C), and even sterilise (118°C) in many different settings.
Making homes, buildings and industry more energy efficient and sustainable
Combining low-cost materials, exceptional long-life and recyclability, our energy-dense batteries deliver a low-carbon solution for freezing, cooling, heating, steam, and hot water.
About us
Sunamp’s vision is of a world powered by affordable and renewable energy sustained by compact thermal 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.
