Molly Ayala
Solar-powered electric fences are an affordable and efficient way to protect land, livestock, and property. They can be a cost-effective alternative to traditional electric fences, eliminating the need for expensive wiring and fuel. When installing a solar electric fence, it is important to consider the area you need to cover and choose a suitable fence system. You can purchase a pre-configured kit or build your own system by sourcing individual components such as solar panels, chargers, batteries, and fencing materials. Proper grounding is essential to ensure the effectiveness of the fence, and you should also take into account the amount of sunlight your installation location receives to avoid shading issues.
| Characteristics | Values |
|---|---|
| Purpose | Protect land, livestock, and property |
| Benefits | Affordable, efficient, dependable, and eco-friendly |
| Considerations | Length of fencing, voltage, type of solar panel, and output joules |
| Installation | Lay boundary, plant corner posts, dig holes, secure poles with cement, attach solar panel, connect energizer, fence, ground rod, and battery |
| Maintenance | Ensure proper grounding, avoid shading, and prevent overcharging |
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What You'll Learn
Planning and purchasing
Planning:
Firstly, identify the purpose of your solar electric fence. Are you trying to protect a vegetable patch from small animals, or do you need to secure a large field of livestock from predators? This will determine the length of fencing and the voltage required. For example, protecting a vegetable patch from small rodents will need a shorter fence with a lower voltage than securing a field from larger animals.
Next, consider the boundary you need to cover. If you're keeping foxes out of a chicken coop, the boundary is the chicken run. Ensure you have enough materials to cover the entire perimeter. Identify the corners or extremes of your boundary, as these will be the locations for your wooden corner or end posts.
Purchasing:
Once you've established your needs and requirements, you can purchase the necessary materials. You can either buy a pre-configured solar electric fence kit or source the individual components separately.
If you opt for a kit, ensure it includes all the necessary hardware and accessories. For example, the PrimaShock® units from Premier1Supplies offer flexibility, as their energizers can be plugged into an AC outlet or connected to a DC battery.
If you're sourcing individual components, you'll need to purchase the solar charger, fencing, poles, and a ground rod. You may also want to consider a battery-operated fence charger with a solar panel to keep the battery charged.
When selecting a solar panel, you can choose between monocrystalline and polycrystalline panels. Monocrystalline panels are the traditional option, while polycrystalline panels are newer and slightly more cost-effective. The size and wattage of the panel are important, with a general rule of thumb being 10 watts of solar panel per joule of output energy.
Additionally, consider the sunlight hours at the installation location to ensure optimal solar energy absorption. You may also need accessories like a solar charge controller to prevent overcharging and a fence voltmeter or tester to measure voltage.
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Laying the boundary
Once you've established the boundary, it's time to start setting up the posts. Begin by planting wooden corner or end posts at the corners or extremes of your boundary. These posts will serve as the foundation for your electric wiring, which will curve around them to connect with the T-posts placed in between each corner. Dig holes for your end or corner posts using a post hole digger, digging down about 2-3 feet. Position your posts in the holes and secure them by filling the holes with cement.
After installing the corner or end posts, you can move on to placing the T-posts in between. Ensure that the T-posts are properly spaced and securely anchored in the ground. The specific spacing will depend on the type of animals or intruders you're trying to keep out or contain. For example, if you're dealing with bears, you'll need a tighter fence with high-tescel 10-gauge wire strung tightly about 10 inches apart.
When all the posts are in place, you can start stringing the electric wiring. Follow the manufacturer's instructions for properly attaching the wiring to the posts and ensuring correct tension. Make sure to connect the wiring to the solar-powered energizer or charger, following the specific instructions provided with your chosen product.
It is important to note that proper grounding is essential for the effectiveness of your solar-powered electric fence. Without proper grounding, the fence's electrical circuit cannot be completed, and it will not create a sufficient pain barrier for animals. Consult a professional or refer to product guidelines for specific grounding instructions.
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Positioning the poles
It is important to dig holes for your end posts or corner posts securely. Use a post hole digger to dig down about 2-3 feet. Place the pole in the hole and fill the excavation with cement to secure the pole firmly in place. Repeat this process for all the corner posts. The number of poles and the distance between them will depend on the length of your fence and the type of animals you are trying to keep out or contain.
If you are installing a movable solar electric fence, you can build a small frame to hold all the components in one unit. The battery sits at the bottom, providing weight and counterbalance. The upright frame can be made of painted OSB (oriented strand board), which serves as the mounting plate for the energizer and charge controller. The solar panel is then mounted on top with swivel points that can be locked in place with bolts and lock washers. This swivel feature allows you to adjust the panel to optimise sun exposure.
When positioning the poles, it is also essential to consider the sun's path throughout the day and year. Observe the surrounding environment, including trees or buildings that may cast shadows on your solar panels. Try to position the poles in an area that receives maximum sunlight to ensure the panels can absorb enough energy to power the fence effectively. Additionally, consider mapping out your sunlight hours to avoid shading problems and ensure optimal energy generation.
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Attaching the solar panel
When attaching the solar panel, it is important to consider the type of solar panel and the wattage/size of the panel. The two main types of solar panels are monocrystalline and polycrystalline. Monocrystalline photovoltaic cells are ideal for charging 12V batteries and you can choose from a range of wattages, typically from 10W up to 90W. The general rule for sizing the solar panel is 10 watts of solar panel per joule of output energy. If you live in an area with less frequent sunshine, you may need a higher wattage panel to compensate.
The solar panel can be attached to a mounting plate with swivel points that lock in place with bolts and lock washers. This allows you to adjust the angle and direction of the panel to maximize sunlight exposure. The mounting plate can be attached to a structure such as a barn or a specially built frame. Ensure that nearby trees or other objects will not cast shade on the panel, as this can affect its performance.
When attaching the solar panel, it is also important to consider the electrical connections. The solar panel should be connected to a charge controller to regulate the voltage and prevent overcharging the battery. The charge controller is then connected to the battery, which powers the electric fence. It is essential to follow the manufacturer's instructions and take the necessary safety precautions when making these electrical connections.
Additionally, proper grounding is crucial for the effectiveness of the electric fence. This involves connecting the fence to ground rods, which provide a return path for the electrical current. The length of ground rod required depends on the output joules of the energizer, typically recommended as 3 feet of ground rod per joule. Multiple ground rods can be connected together with insulated wire.
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Testing the voltage
First, it is important to understand that the voltage of an electric fence refers to the electrical potential difference between two points on the fence. This voltage is what creates an electric current when something, like an animal, comes into contact with the fence. To test this voltage, you will need a voltmeter or a high-voltage tester. These tools are specifically designed to measure electrical potential and are essential for this process.
Begin by positioning yourself at the end of the fence line. Connect the voltmeter or high-voltage tester to the fence at this endpoint. Ensure that one end of the tester touches the earth terminal (usually marked as "-") while the other end touches the fence terminal (usually marked as "+"). This will provide you with a voltage measurement at the fence's endpoint.
If the voltage reading is below 3000V, further troubleshooting is required. Turn off the energizer, which is the device that provides power to the fence. Disconnect the wires connecting the energizer to the fence and the ground stake or rod. Once everything is disconnected, turn the energizer back on. Now, use the voltmeter or high-voltage tester to measure the voltage directly on the energizer itself. Touch one end of the tester to the negative terminal and the other end to the positive terminal of the energizer.
This measurement will help you determine if the issue lies with the fence or the energizer. If the energizer is functioning correctly and the voltage is still low, then the problem may be with your fence wiring or grounding system. Ensure that your wiring is intact and that your grounding system meets the recommended specifications, such as having sufficient ground rods and proper connections.
It is important to test the voltage of your solar-powered electric fence regularly to ensure it remains effective at deterring unwanted visitors or containing your livestock. Additionally, proper voltage testing helps prevent any accidental shocks to people or animals that may come into contact with the fence.
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Frequently asked questions
Solar-powered electric fences are an affordable and efficient means of protecting land, livestock, and property. They can dramatically reduce running costs by eliminating the need to purchase fuel for a generator.
The basic components of a solar-powered electric fence include a solar panel, a battery, a charge controller, and fencing with poles and a ground rod.
The size and wattage of the solar panel depend on the output joules of the fence energizer. A general rule is 10 watts of solar panel per joule of output energy. Monocrystalline and polycrystalline panels are common types, with the latter being cheaper. The battery should be a 12V battery for maximum compatibility.
First, determine the boundary of your fence and plant corner or end posts at the corners, digging down about 2-3 feet and securing them with cement. Then, string high-tescel 10-gauge wire tightly 10 inches apart, ensuring proper grounding with at least 3 feet of ground rod per joule of output.
Mount the solar panel facing south for maximum sunlight. Attach the battery to the solar panel for recharging. Connect the energizer to the fence, ground rod, and battery, measuring the voltage with an electric fence tester.
