The Stack

One of the electrochemical cells described previously is a cell pair – a cell due to the positive and negative poles, and a pair due to the two types of membranes and two feed waters. Each cell pair has a salt water compartment, a CEM, a fresh water compartment, and an AEM. It’s possible to pile multiple cell pairs on top of one another to increase the total voltage of the RED system. A whole pile of RED cell pairs is called a RED stack, to which the company owes its name.
An important component of a RED stack is the electrode couple. Inside the stacks, all of the energy is transported in the form of an ionic current – the ionic current is converted into electricity only at the electrodes. The chemical-to-electrical conversion can be done in two ways: the first is to use a reduction-oxidation reaction to generate direct current (DC) electricity, and the second is to use capacitive electrodes. In a RED stack being operated under load conditions, one electrode compartment generates an over-supply of positively charged ions and becomes predominantly positive, while the other generates an over-supply of negatively charged ions and becomes predominantly negative. Electricity can then be generated using either a redox reaction or with capacitive electrodes, and transferred through a converter to the grid for distribution.

  • news

    Dutch King Officially opens Blue Energy pilot installation on the Afsluitdijk Dutch King Officially opens Blue Energy pilot installation on the Afsluitdijk

    Dutch King Officially opens Blue Energy pilot installation on the Afsluitdijk

    The pilot plant is officially opened by the Dutch King Willem-Alexander (November 2014).

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    RED-Heat-to-Power

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    REAPower

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    Afsluitdijk Project Afsluitdijk Project

    Afsluitdijk Project