If you have enough space available, you can mount your panels in a specially engineered rack structure affixed to the ground. In other cases, roofs are simply too complex, with too many vents and odd angles, to support a large array of solar panels, so ground mount may be the only option. Ground-mounted systems offer both pros and cons: On the pro side, you can orient the panels directly south, at the optimum tilt angle. This ensures the maximum amount of production over the course of a year. You also won’t have to worry about leaks in your roof, and the panels are easier to maintain and change, if the need arises. On the negative side, ground-mounted systems are more expensive than roof- mount because they require concrete posts and rigid frames. Wind is also more of a problem with ground mount. Ground mount systems require suit- able land space, and the appearance is definitely industrial. You’ll be putting a big, ugly, visible array somewhere on your property. Instal...