Solar Energizers: Power from the Sun for Fields Without a Socket

Solar Energizers: Fewer Trips, More Independence

A solar energizer combines an electric fence energizer with a solar panel that recharges the battery during the day. Your fence stays live for a long time even on distant land, without you having to swap batteries constantly or buy dry cells. On summer grazing, upland pastures and fields without a power supply in particular, this saves a lot of driving. There are compact units with a built-in panel and larger complete kits.

Matching Panel Size and Battery

How well a solar energizer keeps going depends on the balance between panel output, battery size and power consumption. Small panels are enough for poultry, short fences or economical units, while long fences and keeping wildlife out need more watts. In autumn and winter the sun provides less energy, so the battery should have enough reserve for several dull days. A charge controller protects it from overcharging.

Setting Up and Protecting

Face the panel south if possible and make sure no tree or building casts a shadow on it. In winter a steeper angle helps snow slide off. For a firm footing there are ground anchors and post brackets. As solar energizers often stand in out-of-the-way places, theft protection such as a lockable box is worthwhile. And as with any electric fence: without good earthing, there is no full voltage.

Frequently asked questions

Does a solar energizer work in winter?
Yes, although the panel produces less power on short, cloudy days. A sufficiently large battery bridges these periods. With long fences it can make sense to top up the battery with a charger now and then in winter.

How big does the solar panel for my electric fence need to be?
That depends on how much the energizer uses and how much sun the site gets. As a rule of thumb, the stronger the unit and the longer the fence, the more watts the panel needs. Complete kits are already matched to each other.

Does a solar energizer still need a battery?
Yes, the battery stores the energy for the night and for days with little sun. The panel alone could only power the unit in direct sunlight. Make sure the battery size and panel output are well matched.