Five Inputs for a Solar Storage Proposal

A solar-plus-storage proposal is only as reliable as the project data behind it. This article identifies the five inputs that most influence system sizing, equipment selection, and commercial viability. First, electrical load profiles determine daily energy consumption and peak demand. Second, solar irradiance data shapes array sizing and expected yield. Third, grid availability and tariff structure affect the economic case for storage. Fourth, backup priorities define the critical load tier and required autonomy. Fifth, site constraints — roof area, orientation, shading, and distance to the main panel — influence panel placement and cable routing. Providing these five inputs enables accurate simulation, equipment selection, and ROI projections.