Power Storage in Ammonia

Liquid Ammonia as battery

If this large-scale storage of renewable energy in liquid ammonia succeeds, communities can cover long low wind and solar energy periods

Is liquid Ammonia the solution for energy storage?

Big energy company Nuon, together with the Technical University Delft started a pilot project in which renewable energy will be stored in liquid ammonia.

In future energy company Nuon will use Ammonia, instead of coal or gas, to power their new power plant in the Netherlands. If this five-year pilot project has proven to be positive, this technology can be used by energy companies all around the world.


The power plant will be transformed to a mega battery to store excess green power from wind energy. The 3-step process is as followed:

  1. First convert your electricity from wind in liquid ammonia
    a chemical process, in which hydrogen is bonded to nitrogen, in order to make ammonia
  2. Store the synthetic ammonia in large tanks
    the energy can be stored as long as needed and therefore provides a fuel stock for those moments when there is little wind or sun energy
  3. In step three. use the liquid fuel in the power plant
    only nitrogen and water will vapor, no CO2

Balance on the Net

Prolonged power storage in existing coal plants, could mean a major breakthrough in how renewable energy can be used in current energy grids.

Until now, it is still difficult to store renewable energy on a large scale. That is why countries need gas- and coal-fired plants, regardless of the number of wind turbines that provide the country with clean, green energy.

Fokko Mulder, professor of materials for renewable energy at the Technical University Delft, leads the project ‘Power to Ammonia‘. He is positive about this new form of energy storage. The advantages are obvious:

  • existing power plants can retain their function
  • there will be no ‘dirty’ gassed released like CO2 or nitric oxide
  • this mega battery is a significant development for energy companies to secure their business
  • and storage is a pretty logical step to phase out fossil fuel


Although the advantages of this form of energy storage, ammonia has a downside: it is a toxic substance. Storage and transportation must be done safely.

But it seems logical that science and industry will find a solution. It is used for decades in the chemical industry for example during the production of fertilizers.

If this large-scale storage of renewable energy in liquid ammonia succeeds, communities can cover long low wind and solar energy periods.


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