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Sunamp Ltd

Sunamp Ltd is a world leader in thermal energy storage, having developed a highly efficient, non-toxic, low cost Heat Battery system, using Phase Change Materials (PCMs) to store excess energy when it’s available, and release as heat to provide hot water and heating when required, in much the same way as a hand warmer. Sunamp Heat Batteries are installed in over 1000 homes across the UK. Sunamp products are easy to install, compact and can provide space heat and/or hot water.

Sunamp Ltd is a world leader in thermal energy storage, having developed a highly efficient, non-toxic, low cost Heat Battery system, using Phase Change Materials. Phase Change Materials (PCMs) to store excess energy when it’s available, and release as heat to provide hot water and heating when required, in much the same way as a hand warmer.

Continued pressure to reduce energy usage and the cost of energy at home and work, has resulted in the development of many unique innovations. Heat storage is key to making renewables and energy efficiency work and Sunamp Heat Batteries store heat, harvested from a renewable source, which can be released on-demand to provide heat and hot water.

Renewable energy has huge potential to become the dominant source of energy in the economy, however the inherent intermittency of most renewable sources represents a huge weakness. It is universally accepted that energy storage is the key to overcoming this, but is costly and inefficient at the moment. Sunamp heat batteries go a long way to solving this problem by allowing energy to be stored, as heat, when it’s available and release it when needed, with much lower cost and higher efficiency than competing technologies

Sunamp was formed to respond to the need for low to zero-carbon heating, cooling and hot water systems in both domestic and commercial Heating Ventilation and Air Conditioning (HVAC) applications. The Sunamp patented high power heat battery has many benefits:


    • Stack to fit any space and are fully configurable, upgradeable and super-compact
    • Life cycle tested to over 35years
    • Ideal for storing heat from heat pumps, solar thermal, biomass boilers, conventional boilers and combined heat and power
    • Cost-efficient, being priced to compete with hot water thermal store-based systems and reduces the cost of operation below current systems
    • Excellent flow rates
    • More responsive than hot water thermal stores, deliver hot water more quickly to the tap and respond quickly to a heating system’s ‘call for heat’
    • Non-toxic
    • Non-flammable
    • Sustainably sourced (Sunamp Heat Batteries contain PCMs that are a by product which has many uses including in salt and vinegar crisps)

As a result, these high efficiency heat energy stores can deliver considerable energy savings in both domestic and commercial environments.

Sunamp has delivered over 1000 systems using its Heat Batteries to customers, utilities and major own-equipment-manufacturers all over the world.

Sunamp continues to innovate moving into different cool products for the air conditioning and cooling sectors and different industry sectors e.g. Sunamp Heat Batteries have been trialled in buses and cars

Sunamp energy storage systems are key to making renewables and energy efficiency work. Sunamp Heat Batteries which vastly reduce CO2 emissions and which achieve a significant reduction in fuel bills, therefore reduce fuel poverty and enhance domestic/industrial energy security.

Contact Details

Megan Bonner +44 01875 610001