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A solar project site survey is an on-site inspection done before designing and installing a solar energy system. Its purpose is to confirm that a location is suitable for solar and to gather the technical details needed for an accurate system design, cost estimate, and installation plan.
What a solar site survey includes
What a solar site survey includes
1. Site suitability & solar access
1. Site suitability & solar access
Measures sun exposure throughout the day/year
Identifies shading from trees, buildings, chimneys, or terrain
Confirms roof orientation (south-facing is ideal in the U.S.) and tilt
2. Structural assessment
2. Structural assessment
Checks roof condition, age, and material (shingle, metal, tile, etc.)
Verifies the structure can support the weight and wind loads of panels
For ground mounts, evaluates soil conditions and space
3. Electrical evaluation
3. Electrical evaluation
Inspects the main electrical panel (amp rating, breaker space)
Determines interconnection method and inverter location
Identifies any upgrades needed to meet code or utility requirements
4. Measurements & layout planning
4. Measurements & layout planning
Takes precise roof or ground measurements
Plans panel layout, mounting hardware, and wire runs
Confirms access points, setbacks, and fire-code clearances
5. Permitting & compliance checks
5. Permitting & compliance checks
Reviews local building codes, zoning rules, and HOA requirements
Gathers documentation for permits and utility interconnection
Why the site survey matters
Why the site survey matters
Prevents surprises during installation
Ensures the system is safe, code-compliant, and efficient
Allows accurate pricing, timelines, and production estimates
Reduces change orders and project delays
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