Solar in Arkansas belongs on a roof that has already survived humidity and storms, not on a deck you hope is sound. Oak and pine shade a surprising amount of the south slope in the hills and in older towns. The Delta offers more open sky and more wind. Neither setting cares about a brochure. It cares whether the covering, the flashing, and the attic are fit to carry an array through the next wet season.
Call with the town, the age of the roof if you know it, and what the attic looks like after a hard rain. Soft decking, active stains, and a covering that is already curling are reasons to talk about the roof before anyone talks about modules. Shade is the next fact. A south slope under a water oak is not an open slope, even if the house faces the right way. Say which trees own the roof from late morning to afternoon.
Storms will still cross the state after the array is up. Limbs, hail, and wind-driven rain do not become polite because equipment is on the slope. Ask, when you call, how a later roof repair is supposed to happen with modules in the way, and who comes back if a penetration weeps. You are not designing the rack on the phone. You are refusing to treat the roof as a parking lot for hardware.
The electrical service is the other half of the visit. Older houses in town often have a panel that was never meant to host an inverter, and rural services can be just as tight in a different way. Say whether the panel is in the garage, a closet, or on an outside wall, and whether you have already been told it is crowded. Leave the wire sizing to the visit. Your job on the call is to flag the constraint.
Arkansas sun is real, and so is the wet air that rots a careless penetration. Have a ground look at the south slope and the trees, know whether you would own the equipment, and call before you fall in love with a drawing made from the sky. The roof either can carry this or it cannot. Call the number on this page.