Path-Q Solar
When should I request a professional solar site assessment instead of using an online estimate?
Answer
Request a professional assessment when the site is complex, the decision is financially significant, or accuracy matters beyond a rough screening estimate. Online estimates are more useful for initial orientation than for final design or commitment.
Key points
- Professional assessment is especially useful for complex roofs, shade, old or unusual structures, electrical constraints, difficult access, or planned construction.
- A detailed assessment should address roof condition, structural and electrical requirements, shading, layout, production assumptions, and installation constraints.
- Ask what the assessment includes and whether it is free, paid, binding, or credited toward later work.
What it depends on
- Site complexity
- Required design accuracy
- Roof and electrical condition
- Cost and scope of the assessment
Risks and trade-offs
- An online estimate may omit site-specific constraints and overstate expected production.
- A professional assessment costs time or money but can reduce redesign and installation risk.
- An assessment from one provider may reflect that provider's preferred equipment or assumptions.
Information you may need
- Roof and property details
- Electricity usage
- Shade and access conditions
- Assessment scope and deliverables
Your next step
What to do next
Use an online estimate only for a preliminary screen, then request at least one detailed site assessment before selecting equipment or signing a contract.
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