Selecting the appropriate energizer is crucial. It directly impacts the performance and safety of your electric fence system, whether you're managing livestock or keeping wildlife at bay. An incorrect energizer can compromise your fence's effectiveness, pose risks to your animals, or make the fence completely useless. To guarantee a safe and efficient setup, several factors need careful consideration. Here's a breakdown of the key elements to help you choose the right energizer.
What is an electric fencing system and how does it work?
An electric fencing system consists of:
A) An energizer that regularly sends electrical pulses
B) One or more conductors that carry the current (not necessarily forming a closed loop)
C) Insulators that prevent the current from grounding
D) Permanent or movable posts, depending on the needs
E) Grounding that should ideally be placed in a moist area
When an animal touches the wire, the electrical circuit is completed — the current flows through the animal to the ground and returns to the energizer. The animal then receives an unpleasant but harmless electric shock and backs away.
This type of electric fence is effectively used to enclose and contain livestock, but also serves as protection against animal intrusions.


Power supply: Which energy source to choose
Mains Powered (110V): Ideal for permanent installations close to an electrical source. Reliable and powerful, this type of energizer is well-suited for large farms and areas with existing electrical infrastructure.
Battery Powered (12V): Suitable for remote locations, this energizer offers good autonomy. To extend battery life, it can be paired with a solar panel, which will reduce the frequency of recharges.
Solar Powered: Autonomous and environmentally friendly, the solar model is ideal for locations without access to mains electricity. Its performance depends on sunlight, but it provides a sustainable and effective alternative.
Dual Powered (110V/Battery or Solar/Battery): This model combines two power sources, offering greater flexibility. It is ideal for installations located on the edge of electrified areas or for users seeking a hybrid solution. This model provides backup power in case of failure or low sunlight. Dual energy ensures service continuity and increased autonomy.


Fence length: Power to suit your needs
The energizer's power, expressed in joules, must be proportional to the distance to be covered. Here's a reference guide :
Less than 1 km → 0.5 to 1 joule
1 to 5 km → 1 to 6 joules
5 to 15 km → 6 to 10 joules
15 to 50 km → 10 to 18 joules
Over 50 km → 18 joules and up


Type of animals to contain or repel
Each species has specific electrical intensity requirements:
Sheep, Goats: Require strong power, as their wool provides natural insulation.
Cattle and Pigs: High intensity is necessary, with multiple wires at different heights.
Horses: A mid-range model is sufficient.
Wildlife (Deer, Coyotes, Bears): A high-power energizer is recommended to deter these animals.


Vegetation: A factor not to be overlooked
Tall grass and branches that come into contact with the fence absorb some of the electrical energy. This, in turn, reduces the effectiveness of the installation. If your fence is located in an environment with dense vegetation, plan for a more powerful energizer.
Features and safety: Practical options
To ensure optimal operation and safe use, certain features are essential:
- A visual indicator or alarm to signal malfunctions.
- Protection against power surges and lightning to safeguard the equipment.
- Automatic voltage regulation to adapt to the fence load.


PRO TIPS
- Allow for a power margin exceeding the actual length of your fence to compensate for potential energy losses.
- Ensure effective grounding by using deeply driven stakes (at least 1 meter) for optimal conductivity.
- Prioritize recognized brands and check the warranty for a lasting investment.
Need a model tailored to your installation? Contact our technical service. Our team of experts will advise you on the best option for a high-performance and reliable electric fence system!