Sheep Energiser Buyer's Guide

A vital element of an electric sheep fence is the energiser. Alongside various power supply options (mains electricity, solar power, or battery operation), the performance (charging and discharging energy) of the energiser is a crucial factor to consider.

Given the wide range of devices available, here are four quick tips to help you select the right model:

Power Rating: The power of the energiser, also referred to as impulse energy (measured in Joules), should be matched to the size of your pasture, specifically the length of the fence, as well as the type of animal (sheep).

While sheep are generally relaxed animals, they can be challenging to contain due to their wool, which provides good insulation against electric fences. To ensure that the sheep can feel a contact with the fence, a powerful electric energiser with a high output voltage and a substantial discharging energy (at least 2.5 Joules) is required. The voltage of the electric fence should be around 2,000 volts at all points.

We always recommend opting for an energiser with a slightly higher power rating than necessary, as this will allow for future expansions of the fence or adjustments for increased vegetation.

Power Supply: Depending on the location of your fence, various power sources are available to operate the energiser. We recommend using a mains-powered unit (230V), but this requires a nearby fixed power supply. Mains units are also splash-proof, so they must be installed in a sheltered area, such as a barn or shed.

As sheep are often kept in remote grazing areas and mobile fencing systems, such as on dykes, a solar-powered energiser is usually the best choice. This option allows you to be independent of a fixed power supply, eliminating the need to recharge batteries or replace them.

Battery-operated energisers are recommended for temporary grazing areas, especially in regions with less sunlight.

Quality and Durability: We only offer branded units from reputable manufacturers. These devices are designed and tested for rigorous agricultural use and are also suitable for private use. They are weather-resistant, durable, and feature high-quality stainless steel contacts along with robust switches and buttons. Additionally, Gallagher devices come with a seven-year manufacturer’s warranty.

Accessories: If you want to do more than just fence your pasture, such as controlling the sheep fence remotely with your smartphone, compatible accessories for energisers can be found in each product description.

Consider enhancing your new device with a lightning protection system, the appropriate number of earth stakes and cables, and for battery-operated devices, ensure you have the corresponding battery or rechargeable unit.

Our manufacturers of high-quality electric fence energisers:

Gallagher - the brand manufacturer with a 7-year warranty
Pulsara - high-quality devices at an affordable price
Elephant - quality from Denmark