Batteries

The power that a photovoltaic module produces at any time varies according to the amount of light falling on it (and is zero at night time). Most electrical loads need a constant amount of power to be delivered. The battery provides power when the photovoltaic modules produce nothing at night or less than the electrical load requires during the day time.

The battery absorbs excess power from the photovoltaic modules when they are producing more power than the load requires.

The battery provides a reserve of energy (system autonomy) that can be used during a few days of very cloudy weather or, in an emergency, if some part of the photovoltaic system fails temporarily. The battery prevents large, possibly damaging, voltage fluctuations.

To read more about our selection of batteries please access our Datasheet Library.

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