The solar panel can go right here or on the grass. It's just a camping test and set up. So this way we know what to pack, how it works and what do we need. So one thing I was going to do is to tuck the tarp back underneath this. So when it rains the water don't see beans through here and go into the tent. So the update version will have the tarp folded about 6 inches or a foot underneath the tent. So just in case it rains there's no pool water underneath this.