A commercial solar inspection from Wadadli Solar is not the same as a maintenance visit from your O&M provider. It is a structured, documentation-based technical assessment; the output is a written report, not a verbal summary.
Here is what the process looks like from first contact to report delivery.
Before the Visit: Review and Scoping
Before we come to your site, we need your system details:
- System size (kW) and approximate panel count
- Inverter brand and model (SolarEdge, SMA, Enphase, or other)
- Installation year
- Any known issues, fault history, or recent monitoring alerts
- Access logistics: roof access, electrical room access, building management contact
This pre-visit review lets us arrive prepared. If you have monitoring portal access, we will often do a remote pre-inspection before the site visit: reviewing the event log, production history, and optimizer or string status. This frequently surfaces findings before we set foot on the roof.
The Site Visit
A commercial inspection involves three distinct work areas:
1. Array and Roof Inspection
We assess the array physically:
- Panel condition: soiling level, physical damage, delamination
- Optimizer condition (SolarEdge): LED state, physical damage, connector seating
- Racking and mounting hardware: corrosion, fastener condition, rail integrity
- Roof interface: penetrations, flashing, sealant condition, drainage patterns
- Wiring management: conduit condition, weatherproofing, visible damage
We photograph every finding. Nothing goes in the report without a photo.
2. Electrical Review
At the combiner boxes, disconnects, and inverter:
- Termination torque verification (MC4, string terminals, combiner terminals)
- Grounding conductor inspection
- Conduit sealing and labeling compliance
- Inverter physical condition: ventilation, moisture signs, LED status
3. Thermal Imaging
We conduct infrared scanning during active production, ideally when the array is at or above 600 W/m² irradiance. We scan:
- Full array (module by module where size permits)
- DC combiners and string combiner terminals
- Inverter heat management surfaces
Thermal findings are classified by delta-T from ambient neighboring modules. A hot cell above 20°C above neighbors is a high-priority finding.
4. Diagnostic Review
For SolarEdge systems, we connect via SolarEdge GO and review:
- Real-time optimizer status and communication map
- Event log (minimum 90 days)
- String voltage and current readings
For SMA systems, we use the SMA installer app and Sunny Portal data to review:
- Inverter event log
- RS485 bus status on multi-inverter sites
- Historical production trend
After the Visit: Technical Analysis
Inspection is not the final step. Back at the office, we:
- Review thermal images against the string/module map
- Cross-reference monitoring data against physical findings
- Assess inverter lifecycle against the model’s design life specification
- Prioritize findings by severity and cost-impact
The Written Report
Delivered within 5 business days. The report covers:
- Executive Summary: key findings, priority level, overall system condition rating
- Electrical Integrity: terminations, grounding, labeling findings
- Thermal Findings: annotated infrared images with classification
- Structural & Roof Interface: racking, penetration, and drainage findings
- Performance Review: production vs. expectations, monitoring quality
- Inverter Lifecycle Assessment: model, warranty status, estimated remaining life
- Preventive Maintenance Recommendations: prioritized action items, including cleaning interval recommendation where soiling loss is identified
Every finding includes: description, photo reference, severity rating, and recommended action.
Who Uses This Report
Building owners use these reports to:
- Verify their O&M provider’s performance claims
- Prepare for financing or insurance renewals
- Negotiate O&M contract renewals from a position of data
- Document due care for insurance purposes
- Support manufacturer warranty claims
The report is yours. Use it however it serves your interests as the asset owner.
Ready to schedule an inspection? Contact Wadadli Solar with your system details.