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Optimal energy storage for solar collectors and data centers

December 2020
Gallery HeatTank 1
Gallery HeatTank 1


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.

  • /
Label Date December 16, 2020
From Hungary
Maturity stage Small scale commercialization
Looking For Network, New clients, Partners, Credibility

The environmental benefits

  • 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

The Financial benefits

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

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile


The revolution of storing thermal energy. HeatTank can help your business decrease its energy costs by 20-50%.

View company profile Solution website
Headquarters Budapest, 1134 Magyarország

Networking Partner


InnoEnergy supports and invests in innovation at every stage of the journey – from classroom to end-customer.

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Solutions Associated 45
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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. The innovator HeatVentors has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.