2.4 billion people without electricity

Around the planet, 30% of the population lacks continuous or stable access to electricity.

25% of the renewable energy is lost

Mismatches between production and consumption could be solved with an adequate solution to store the excess energy produced from renewable sources. Hydrogen and other energy carriers will become of increasing importance over the following years.

Up to 566 billion euro

The annual economic impact of energy storage in 2025 is estimated up to $635 billion (or €566 billion) (McKinsey). Among them, PEM fuel cells represent the most mature technology that dominates the hydrogen-based applications market such as electric power storage and backup, off-grid electrical supply, and electric mobility.

Our vision

The storage of renewable energies to bridge supply to demand is a key challenge of renewable energy management. The GRT GROUP participates to an important development project together with the EPFL as well as other reputed academic partners for the chemical storage of electricity in formic acid which is used as hydrogen source. The energy density of formic acid is equivalent to high pressure hydrogen gas, but it is easily stored and transported.


Typical applications

  • Clean stand-alone electricity emergency generator with no noise and no emission gas and simple carburant storage.
  • Range enhancement of battery electrical powered vehicles with easy liquid refueling system.
  • High capacity storage of electricity during peak production (future)

Process description

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The acid is produced during peak production hours from excess electricity generated by renewable sources. When the demand exceeds production the acid is split by a patented catalysis process to release hydrogen and carbon dioxide which feed fuel cells.

  1. Production of formic acid through hydro-carbonization with electricity produced exceeding demands.
  2. Storage of formic acid.
  3. Catalysis of formic acid to produce hydrogen.
  4. Production of electricity in a fuel cell.

Environmental benefits

  • No hazardous gas released (only water vapour)
  • No noise
  • Carbon neutral


  • Process basic design
  • Industrial prototype of catalyzer reactor
  • Process sublicense

Academic project partners

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