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Modular Immersion Cooling

A modular battery using immersion cooling to provide safety, high performance and long life to electric mobile machines.

November 2022
Gallery Modular Immersion Cooling 1
Gallery Modular Immersion Cooling 1


The solution aims at providing a sustainable solution for the energy source of mobile industrial equipment used in sectors like construction, agriculture, mining or logistics. Heavy duty equipment are used from 5 hours to 24 hours per day and they require constant productivity in all conditions. Electrifying these machines is therefore a bigger challenge than eletrifying cars. WATTALPS uses an innovative immersion cooling technology to effectively control the temperature of the battery and ensure together safety, maximum performance and cycle life in all conditions. WATTALPS permits to OEMs of the Off-Road sector to significantly reduce their time to market and divide their CAPEX by 20 for high performance batteries. Thanks to its temperature control, a high number of endurance testing and a clever monitoring system connected to the cloud, WATTALPS’ solution enables leasing companies and fleet managers to control and optimize their investment in their productive equipment.

  • /
Label Date November 11, 2022
From France
Maturity stage Prototype testing in the real world
Looking For New clients, Visibility, Funding, Partners

The environmental benefits

  • 80% more autonomy than standard counterparts
  • 43% increased charging rate versus the best other cooling technology
  • The liquid used for immersion cooling is biodegradable, non toxic and non flammable
  • Each WATTALPS’ module sold enables to save 1,27 tCO2e
  • Each WATTALPS’ module repurposed for a second life enables to save an additional 1,13tCO2e

The Financial benefits

  • CAPEX divided by 20 to equip a new machine with high performance batteries
  • 2 years extra battery life in classical e-mobility application. Estimation of 20% battery life increase in heavy duty applications.

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile


WATTALPS designs, assembles and sells modular, high performance and reusable batteries to electrify heavy duty equipment

View company profile Solution website
Headquarters 38430 Moirans, France

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 WATTALPS 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.