Site Assessment

A site assessment is the initial evaluation of a property’s suitability for solar panels, often performed remotely using satellite imagery, 3D modeling software, and utility data before any physical visit. It is typically the first step in the solar sales process and forms the basis for the initial proposal.

Modern site assessments use high-resolution satellite and aerial imagery (from sources like Google Earth, Nearmap, or EagleView) combined with 3D modeling tools (like Aurora Solar or Helioscope) to create a detailed digital model of your roof. The assessment evaluates: roof size and available area, orientation and tilt, estimated shading from trees and structures, structural feasibility, and estimated solar energy production. Combined with your utility bill data (showing your electricity usage patterns and costs), the site assessment enables the installer to generate a preliminary proposal with system size, production estimates, and savings projections — all without setting foot on your property. While remote site assessments have become remarkably accurate, they can miss details like roof condition, hidden shading, or electrical panel limitations. This is why a follow-up physical site survey is conducted before finalizing the installation plan.