This all depends on how you have the gate swinging. (If it slides up a slope no automation will work). If it is swinging on a slope you have one of two choices on making it automation ready. The best choice is gate should swing perfectly level out away from the slope (typically the slope is going up into the property so you set the gate to swing out toward the road so the slope does not affect the level swing of the gate), If you do this method then any gate opener will do if it is the right one for your power requirements (solar, long distance low voltage or 120VAC near by) and right for the weight and length of the gate. Be aware some gate opener require a purchase of additional brackets for push to open operation. The other option if you gate must swing in is to use Liftmaster SWG606 Uphill Swing Hinges. these hinges allow the gate to tilt up to 15 degrees as it swings level to accommodate a slope. If using these hinges you also must use the LiftMaster CSW200UL8 Elite Series Professional Single Swing Gate Opener - 1/2 HP (Standard) gate opener with the additional purchase of the Swivel Arm Q103. The reason for this gate opener option is it is the only one that has available the swivel arm which is needed to pair with a gate that is going to tilt as it swings. This is an expensive and labor intensive setup but a very reliable one. Lastly here is the reason you cannot just leave your gate swinging up hill on normal hinges or sliding on a slope and just "power" through it. All gate openers have safety obstruction sensing built into them so if it feels resistance it will stop before crushing something. This sensitivity does not diminish as the motor gets larger. We think about it this way, no matter how powerful the motor is no manufacturer is going to design a system that will crush a small child when it comes in contact with one; and there is no way to detect the difference between a small child and gravity or wind or other things that cause resistance on the swing of a gate.