Abstract: A modular mounting system for securing a photovoltaic (PV) panel to support structure and a solar array. The mounting system and method configured for flat and pitched surfaces with a minimum of components parts reducing manufacturing and installation costs. The mounting system and method in a rack mount embodiment comprises a base assembly and an elevation assembly each connecting a PV panel via a top plate and mid-clamp assembly. The mounting systems in a rail mount embodiment, the mid-clamp assembly and an end assembly are utilized to ground and secure the PV panel to the rail mount and support structure. The modular mounting system provides a ballast pan, connecting belts for connecting each base bracket to the ballast pan and each other adding rigidity to the system. The modular mounting system provides a reduction in the seismic plates utilized prevent lateral displacement from seismic activity and other environmental factors.