Gallery HeatTank 1
Gallery HeatTank 1
December 2020
Headquarters Mezőtúr, 5400 Hungary

HeatTank - HeatTank is the new generation thermal energy storage which saves 20-50% energy and CO2 emission.

Energy is wasted all over the world in nearly every thermal energy systems. 20 billion EUR or 250 million metric tons of CO2 equivalent green-house gases could be saved only in Europe with optimal thermal energy storages. Traditional systems store heat by changing the temperature of the water. Instead of water, the Solution HeatTank uses special biomaterials called phase change materials. By changing the phase, like melting and solidification HeatTank can store the energy in a more concentrated way, reducing storage volume by 90%, enabling energy savings of at least 20-50%, with a total return on investment of 3 to 5 years. HeatTank uses eco-friendly bio materials as Phase change materials, as recycled materials from by-products. Due to the concentrated heat storage, the storage volume is smaller, allowing clients to save more space. In addition, HeatTank can store energy on different temperatures and also increase the efficiency of the energy systems by 20-50% with a 3-5 years ROI. With HeatTank it is possible to generate energy only when it is the most efficient, store it and use it when it is less efficient to produce it.

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Key features

  • 90% smaller than the traditional water storages.
  • HeatTank has huge 200 kW performance in 1 m3
  • Enables energy savings of up to 20-50%
  • 54 metric tons of CO2 could be saved during the 20 years life cycle


  • Reduce the operational costs with 20-50%
  • Total return on investment is 3-5 years

Categories of Application

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

Looking For

Activity Region

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Italy, Hungary,



  • Headquarters
  • Activity

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.