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IV Curve Testing
RPT-2026-019 - performed 6 Jul 2026 by Waqar Ahmed
Health score
77
Measurements taken
6
1 outside reference
Findings
2
Customer visibility
Internal only
Measurements
Each reading against the reference it is judged by.
| Measurement | Reading | Reference | Result |
|---|---|---|---|
| Open circuit voltage (string A) | 689 V | Within 5% of design | Pass |
| Short circuit current (string A) | 9.1 A | Within 8% of nameplate | Pass |
| Earth electrode resistance | 7.7 ohm | Below 5 ohm | Pass |
| Insulation resistance (DC+ to earth) | 2 Mohm | Above 1 Mohm | Pass |
| Max module temperature | 70 C | Below 25 C above ambient | Outside reference |
| Performance ratio on test day | 62% | Baseline 81% | Pass |
Context
- Site
- Fatima Sheikh
- Customer
- Fatima Sheikh
- Capacity
- 5.0 kW
- Work order
- JOB-2026-0120
- Technician
- Waqar Ahmed
Recommendation
Bring cleaning forward by one cycle and re-torque the affected strings within 30 days.
Score 77 / 100Findings
Defects recorded during this inspection.
Heavy soiling on lower rows
MinorOpenDust accumulation reducing output on the two lowest rows more than the rest of the array.
String mismatch on MPPT 2
MajorOpenString currents differ by 18 percent, pointing to partial shading or module degradation.