Solar conduits are what electrical wires run through from your solar panels to your house.
In most cases, they are run on the outside of your house. These conduits can be painted to match the color of your house so they don’t stand out as much. If the appearance is a major concern, you can have the conduits drop through the attic and then along the side of your house at an additional cost. If you don’t want the conduits to be seen at all, it is possible to run them through the walls. However, this can become extremely expensive. Typically there are creative ways to hide the conduits on the outside of the house without adding to the cost.
If the appearance of the conduit is a concern to you, just talk to your installer at the site assessment and they will let you know the best options for your particular house as every house has its own unique circumstances.