Why does my solar kit not have UL listing stickers on it? My local electrical inspector will not sign off until I can answer this.

Your Solar Kit does not require UL listing as a complete unit. NEC Article 690.4(B) states that Inverters, motor generators, PV modules, PV panels, ac modules, dc combiners, dc-to-dc converters, and charge controllers intended for use in PV system shall be agency listed or field labeled for the PV application. Nevco’s solar kit includes listed components and if installed according to the instructions complies fully with NEC article 690 covering Solar Photovoltaic (PV) Systems.