Axle from FenceFast uses two common energizers to explain both how energizers work and how to choose the right energizer for your unique needs. The power required for your energizers depends on different factors including the type of livestock you are working with, the size of the paddock you are energizing, and your vegetation situation. Axle explains some of the basic principles of electric fencing including grounding, ground rods, conductivity, fence testers and troubleshooting, insulated cables & cutout switches.