Solar Fence Charger Calculator

Size a solar-powered electric fence charger based on fence length, vegetation load, and animal type.

Input Parameters

Results

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Charger Rating
Joules
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Solar Panel
W
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Battery
Ah @ 12V
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Total Wire
miles
Note: Minimum 4,000V for cattle, 7,000V for horses, 10,000V for predators. Heavy vegetation drains pulse energy significantly.

Reference

Total Wire = Fence Length x Number of Wires Base Joules = 0.25 J per mile of wire Charger Rating = Base Joules x Vegetation Factor Veg Factor: Light=1.0, Medium=1.5, Heavy=2.5 Panel W = Daily Wh / (Sun Hrs x 0.75)