The Zilla® Helical System is used in ground mount installations. Requiring no concrete, this ground anchoring system is undeniably the fastest and easiest way to attach a system to the ground. Helical Anchors can be set in less than one minute each, and are immediately ready for leveling and attachment. Foundation, racking and panels can be completely installed in a single day. The Zilla® Helical System works best when used in non-rocky soil types, which allows the helical to penetrate the earth successfully. Helicals will not auger into bedrock or soil with a high concentration of large rocks.