World leading thermal energy storage technologies

Sunamp designs and manufactures space-saving thermal storage that makes American homes, buildings and vehicles more energy efficient and sustainable, while reducing carbon emissions and optimizing renewables.

Public housing in the USA

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

Storing heat from low-carbon energy sources and releasing it for mains-pressure hot water in homes

Housing development

We’re helping developers, planners and architects incorporate our space-saving batteries in renewable energy setups for housing projects

Commercial and industrial

Discover how to reduce carbon emissions from businesses of all sizes by using thermal storage to optimize renewable energy use

Plentigrade

Sunamp's thermal batteries are energy-saving thermal stores with Plentigrade, our high-performance phase change material, at their core.

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 -22°F (-30°C), refrigerate 41°F (5°C) or warm 136°F (58°C), and even sterilize 244°F (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 in the USA

At Sunamp, we make and sell batteries that store heat and discharge it as energy that can be used for hot water, heating and cooling. By doing so, our products cut carbon emissions and help us all meet the challenge of achieving net zero by 2035.

We’re an ambitious company that’s growing fast around the world. We design and manufacture our thermal battery products at our headquarters near Edinburgh, in the UK and recently expanded our operations to include an office in New York.

Learn more