Hi, Im an Electrical Engineer, 8 years experienced in design, I have been working in electrical substations , up to 8 MVA , making calculations, space requeriments and plant designing,including wiring and single line diagrams. Also knowledge in Solar plants and battery bank calculation with IEEE 485 std. My freelance jobs include USA and Canada clients. I can send you my last job with solar system , a single line diagram for a client in USA, to show you my experience. Thanks.