MAN ETES (Electro Thermal Energy Storage)

Gallery MAN ETES (Electro Thermal Energy Storage) 1
Gallery MAN ETES (Electro Thermal Energy Storage) 1
June 2021
Headquarters 8005 Zürich, Switzerland

MAN ETES (Electro Thermal Energy Storage) - A tri-generation energy management solution for simultaneous storage, use and distribution of electricity

MAN ETES stands for Electro-Thermal Energy Storage; it produces and stores heat, cold and electricity at a large scale. Therefore, it is the ideal system for the increasingly important "Sector Coupling", meaning the merging of energy suppliers and consumers. MAN ETES helps municipalities, institutions and companies to reach their goal of CO2 neutrality by providing a system that is completely environmentally friendly and decarbonizing. In contrast to the majority of the competition, this solution uses CO2 as a refrigerant, which is neither toxic to its environment nor flammable as well as inexpensive and easily accessible. Furthermore, the technology solution is powered by MAN's HOFIM® compressor with an integrated expander, which is hermetically-sealed and operating without lube oil. MAN ETES, with electrical inputs from 2 to 14 MW, can provide hundreds of MWh of thermal energy per day and unit with temperature levels between 0° and 150°C.

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Key features

  • Produces heat and cold with up to 80 MW thermal (heat & cold) per heat pump unit
  • CO2 neutral, provided it is operated with green power
  • When dismantled - after 35+ years of lifetime - can be recycled by 90+%


  • Average payback periods in 5 to max 10 years (lifetime of 35+ years)
  • 100% savings on CO2 tax over any other systems, which are still emitting CO2 (fossil fuel burning), including biomass CHPs

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

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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.