How often should solar panels be inspected?

Solar panels should be inspected at least once per year for commercial and industrial installations, and every two years for residential systems. However, more frequent inspections are recommended in harsh environments , coastal areas (salt corrosion), dusty or industrial sites, areas with heavy bird activity, or regions prone to hail, storms or extreme heat. Performance monitoring should be continuous where possible, so any significant drop in output triggers an unscheduled inspection. Inverter firmware updates and safety device testing should also be checked at each inspection.

What are common solar panel defects?

Common solar panel defects include: hotspots (localised overheating caused by shading, cell damage or bypass diode failure), micro-cracks (invisible cracks in cells that reduce output over time, detectable with electroluminescence imaging), delamination (separation of the encapsulant from the glass or backsheet, allowing moisture ingress), potential-induced degradation (PID, caused by voltage stress in humid conditions), snail trails (discolouration along micro-cracks), junction box failure (loose connections, water ingress), and soiling (dirt, bird droppings, lichen reducing light transmission). Mounting issues such as loose clamps, corroded rails or failed roof penetration seals are also common.

Is the template free to use without MapTrack?

Yes. You can download and use the solar panel inspection checklist for free. Open the file and use your browser's Print → Save as PDF to keep a copy. No MapTrack account required. If you later want scheduled solar inspections with performance tracking, photo evidence and automated reminders, we'd be happy to show you MapTrack.

Skip to download form

Free solar panel inspection checklist

Enter your email below to download the PDF-ready checklist. No account required.

A solar panel inspection checklist is used to assess the condition and performance of a photovoltaic (PV) system , panels, inverter, wiring, mounting structure and safety devices. This page explains what to include, how to use the checklist, and offers a free PDF-ready template you can download and use straight away. No sign-up required.

Last updated: 2026-04-10 · MapTrack

Lachlan McRitchie

GM of Operations

Updated 10 April 2026

How to use: Complete system details → inspect panels → check mounting → inspect inverter → test electrical safety → record performance → save as PDF.

✓ PDF-ready. Open and print to PDF
✓ Covers panels, inverters, wiring, mounting, performance and safety
✓ Free to use with or without MapTrack

See the template in action →

Download free PDF template

Trusted by Australian energy and facilities teams

We use your email to send your download and occasional MapTrack updates. Unsubscribe anytime. Privacy policy

Preview the template

See the first part of the checklist below. Enter your email above to download the full solar panel inspection checklist (PDF-ready).

Download to get the full template →

What does a solar panel inspection cover?

A solar panel inspection covers the full photovoltaic (PV) system , panels, inverter, electrical connections, mounting structure, safety devices and system performance. The panel inspection checks for physical damage (cracks, hotspots, delamination, discolouration), cleanliness (dirt, debris, bird droppings), shading from new obstructions, and secure mounting clips and clamps. The inverter check confirms normal operation, expected output, clear ventilation and current firmware. Electrical checks cover DC and AC isolators, earth fault interrupter, cable insulation, junction box seals and earthing conductors. Performance is assessed by comparing actual output against expected values for the system size and conditions.

Benefits of regular solar panel inspections

Maximise output: identify and resolve issues (soiling, shading, hotspots) that reduce energy generation.
Early defect detection: catch micro-cracks, delamination and inverter faults before they cause system failure.
Safety assurance: verify isolators, earthing and cable insulation to prevent electrical hazards and fire risk.
Warranty compliance: many panel and inverter warranties require regular inspections and maintenance records.
Asset protection: extend the lifespan of your solar investment by addressing issues early.
Audit trail: documented inspections provide evidence for insurers, auditors and regulatory compliance.

Benefits of digitising forms in MapTrack

When you move from paper or static PDFs to digital forms in MapTrack, you get:

Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
Automatically get alerts when faults are identified.
Link every form digitally as a PDF to the relevant asset, location or person.
Receive a digital PDF copy with every submission to your email.
Ability to share forms digitally.
Build conditional logic (show or hide questions based on answers).
Take pictures or attach photos. Not possible with a paper-based form.
Electronic signatures.
Edit forms later without reprinting.
Restrict permissions (who can view, complete or approve).
Build forms with AI (describe what you need and MapTrack suggests the form).

Book a demo to see scheduled solar inspections with performance tracking in MapTrack.

What to include in a solar panel inspection checklist

Our free solar panel inspection checklist includes:

System details: date, site/building, system size (kW), inverter make/model, inspector, next inspection due.
Solar panels: 7 pass/fail checks covering cleanliness, cracks, delamination, frames, shading, clips and labels.
Mounting and structure: 5 pass/fail checks covering rails, roof penetrations, tilt angle, corrosion and cable management.
Inverter: 5 pass/fail checks covering operation, display, ventilation, noise/smell and firmware.
Electrical and safety: 6 pass/fail checks covering DC isolator, AC isolator, earth fault interrupter, cable insulation, junction boxes and earthing.
Performance: table comparing expected vs actual for system output (kW), daily generation (kWh), inverter efficiency (%) and string voltages (V).
Declaration and signatures: inspector and site manager sign-off.

How to use the solar panel inspection checklist

Complete the system details , site, system size, inverter make/model, inspector and next inspection due date.
Inspect the solar panels visually. Check for dirt, cracks, hotspots, delamination, shading and secure mounting.
Inspect the mounting structure , rails, roof penetrations, tilt angle, corrosion and cable management.
Check the inverter , operation, display output, ventilation, noise/smell and firmware version.
Test electrical safety devices , DC and AC isolators, earth fault interrupter, cable insulation, junction boxes and earthing.
Record performance data , compare actual output, generation, efficiency and string voltages against expected values.
The inspector and site manager sign to confirm the inspection is complete.

In MapTrack, you can schedule solar inspections with automated reminders, attach photos and track performance trends over time. Book a demo to see how.

Get the free template

Enter your email above to download the solar panel inspection checklist.

Back to download form

How often to inspect solar panels

Commercial and industrial solar PV systems should be inspected at least annually. More frequent inspections (quarterly or six-monthly) are recommended for sites in harsh environments , coastal areas, dusty or industrial locations, or areas with heavy bird activity. Performance monitoring should be continuous where possible, with any significant drop in output triggering an unscheduled inspection. Cleaning frequency depends on the local environment , some sites need quarterly cleaning, others annually. Always schedule an inspection after severe weather events (hail, storms, cyclones).

Frequently asked questions

What does a solar panel inspection cover?: A solar panel inspection covers the full photovoltaic (PV) system , panels, inverter, electrical connections, mounting structure, safety devices and system performance. The panel inspection checks for physical damage (cracks, hotspots, delamination, discolouration), cleanliness (dirt, debris, bird droppings), shading from new obstructions, and secure mounting clips and clamps. The inverter check confirms normal operation (no fault lights), expected output, clear ventilation and current firmware. Electrical checks cover DC and AC isolators, earth fault interrupter, cable insulation, junction box seals and earthing conductors. Performance is assessed by comparing actual output (kW, kWh, string voltages) against expected values.
How often should solar panels be inspected?: Solar panels should be inspected at least once per year for commercial and industrial installations, and every two years for residential systems. However, more frequent inspections are recommended in harsh environments , coastal areas (salt corrosion), dusty or industrial sites, areas with heavy bird activity, or regions prone to hail, storms or extreme heat. Performance monitoring should be continuous where possible, so any significant drop in output triggers an unscheduled inspection. Inverter firmware updates and safety device testing should also be checked at each inspection.
What are common solar panel defects?: Common solar panel defects include: hotspots (localised overheating caused by shading, cell damage or bypass diode failure), micro-cracks (invisible cracks in cells that reduce output over time, detectable with electroluminescence imaging), delamination (separation of the encapsulant from the glass or backsheet, allowing moisture ingress), potential-induced degradation (PID, caused by voltage stress in humid conditions), snail trails (discolouration along micro-cracks), junction box failure (loose connections, water ingress), and soiling (dirt, bird droppings, lichen reducing light transmission). Mounting issues such as loose clamps, corroded rails or failed roof penetration seals are also common.
Is the template free to use without MapTrack?: Yes. You can download and use the solar panel inspection checklist for free. Open the file and use your browser's Print → Save as PDF to keep a copy. No MapTrack account required. If you later want scheduled solar inspections with performance tracking, photo evidence and automated reminders, we'd be happy to show you MapTrack.

Need scheduled solar panel inspections with performance tracking?

Digitise your solar inspections in MapTrack. Schedule inspections, attach photos, track performance trends and get automated reminders when the next inspection is due.

Start free trial Book a demo

Maintenance · Forms & checklists · Templates · Resources