3. Isolated storage

3.1 Residential site

Storage, usually in the form of a lead or lithium battery, is located between the renewable energy generator (wind or solar) and the load.

Today's inverters and converters are highly efficient, and direct current distribution is no longer practiced. This means that standard 230 V equipment can be used on alternating current (V _ac ).

In a small off-grid installation, the battery provides a guarantee of supply (particularly in the event of failure of the renewable energy generator) and compensates for variations in the renewable resource (wind or sun).

The battery must be sized in terms of energy and power:

E _...

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Isolated storage

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page The benefits of storage for renewable energies

Stationary storage combined with solar or wind generation

Bibliography

(1) - Ministère de l'économie, de l'industrie et du numérique, Ministère des finances - Feuille de route stockage stationnaire pour les énergies renouvelables, facteur clé de succès pour la filière industrielle française - (2007).
(2) - HARRICHE...

Regulations

Arrêté du 23 avril 2008 relatif aux prescriptions techniques de conception et de fonctionnement pour le raccordement à un réseau public de distribution d'électricité en basse tension ou en moyenne tension d'une installation de production d'énergie électrique (Version consolidée au 18 mai 2017).