I'm a Solar PV Design Engineer having more than 5 years of work experience purely on solar PV field. I can do a full solar panel layout design of your solar PV project using AutoCAD. Having a proper panel layout is vital when it comes to larger solar PV projects. So, that it can be directly passed towards to workers to install panels. This panel layout will include all relevant details like skylights, roof vents, wire pathways, walking pathways etc, and keeping provisions for them. These will be drawn in separate layers in AutoCAD. *Note - This Gig is only for roof mounted solar panel projects. Please contact me separate for ground mounted ones. To do an accurate design, please provide me followings: 1. AutoCAD drawing or hand sketched drawing(with all dimensions) of the roof 2. Datasheet of the solar panel 3. String sizing for each inverter After you give me all information as in above, I can offer you followings: 1. AutoCAD file of complete solar panel layout 2. String layout (panel strings for each inverter : marking strings separately)