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Solar system inspection

What a paid health check covers on a system that seems to work, and the report you should expect.

Updated September 3, 2026

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Written by HyreSolar Research Desk Primary-source research and fact checking

The short answer

A solar system inspection is a health check on an installed array. It compares production with what the system should make, tests strings electrically, checks connectors, mounts and flashing, and looks for damage, soiling and critters. It is worth booking after storms, before warranties expire, when output drifts, or after an installer closes.

When an inspection pays off

Before warranties lapse

Find workmanship faults while they are still covered.

After storms

Hail and wind damage is not always visible.

When output drifts

Data first, then a site visit.

What gets checked

A thorough inspection covers four areas.

Production

Actual output against expected, adjusted for weather.

Electrical

String voltage and current, insulation tests, connectors.

Mechanical

Racking, mounts, flashing, roof under the array.

Environment

Shade growth, soiling, nesting.

Is degradation normal?

Panels lose output slowly. REC’s warranty, for example, guarantees at least 92% of rated output at year 25. A gradual decline is expected; a sharp drop is a fault. Our degradation guide explains the difference.

How an inspection runs

01
Data review

Monitoring history before the visit.

02
Visual inspection

Ground and roof, panels, wiring, mounts.

03
Electrical testing

Strings, insulation, inverter logs.

04
Thermal imaging

Optional, finds hot spots.

05
Written report

Findings, photos, priorities.

What changes the price of an inspection

Inspection scope varies more than the name suggests.

FactorEffect on a solar System Inspection quote
ScopeVisual only, or full electrical testing.
Thermal or drone imagingAdds cost and detail.
System sizeMore strings, more testing.
Roof accessPitch and height.
Report depthPhotos and priority list versus a checklist.

Repair prices for anything found: solar repair costs.

Questions before booking an inspection

Is electrical testing included, or only visual?
Will you get on the roof?
Will I get a written report with photos?
Are you independent of any company selling me repairs?
Will you compare production with expected output?

Your inquiry

Tell us about your home

Nothing goes to a solar professional unless you agree.

Free, with no obligation: a person reads it and gets back to you. Matching is not live yet, so this is not a quote.

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Questions

How often should solar panels be inspected?
There is no single rule. Check monitoring monthly, and book an inspection after severe weather, before workmanship warranties end, or when output drops.
Is a solar inspection the same as a permit inspection?
No. The permit inspection is done once by your jurisdiction at installation. A health check is a private service on a working system.
Can I inspect solar panels myself?
You can check monitoring and look from the ground. Electrical testing and roof work should be done by a qualified technician.

Written and audited by

HyreSolar Research

Primary-source research, data analysis and fact checking

We are a research desk, not a sales floor. We read the statute, the tariff, the code section, the federal filing or the manufacturer data sheet ourselves, and we publish the figure with the document it came from and the date we retrieved it.

Where a number cannot be traced to a primary source, we publish the shorter page and say what we could not verify. That rule has cost us whole sections, and it is why the rest can be checked.

160
primary sources read and cited
228
figures with a retrieval date
115
federal and state government sources
66
researched pages published

Authorship on this site is organizational: the analysis belongs to the desk rather than to a named individual, and we do not publish credentials we do not hold. Our editorial policy sets out how we source, date and correct what we publish.

Sources & retrieval dates

REC Alpha Series Limited Warranty, Rev 8 (Americas), February 2026. Source for the 25-year performance warranty with a 92% output floor at year 25. Retrieved 3 September 2026.
Analysis of Persistent Soiling Losses, NLR/TP-5K00-98636, 2026. Source for sustained losses of 5 to 15% in the southeastern United States, the fungal cause, and the finding that fungal build-up requires mechanical cleaning to remove. Retrieved 3 September 2026.

This page on solar System Inspection is general and varies by location, utility tariff, building code, roof and your own circumstances. It is not tax, legal or engineering advice. HyreSolar is an independent information site: we do not install, finance, service or inspect solar systems, and we do not supervise or warrant anyone who does.