And Consulting Private Limited
And Consulting Private Limited
Elion Technologies has inspected solar assets from 1MW rooftop installations to 500MW ground-mounted farms across India. Our drone thermography service identifies every thermal fault in your plant — hotspot cells, bypass diode failures, PID, soiling, and string faults — in a single inspection, without any plant shutdown, fully compliant with IEC 62446-3 Level 2 inspection standards.
Solar plants lose between 3% and 12% of their potential annual generation to thermal faults that are invisible to plant operators. SCADA monitoring tells you a string is underperforming. It does not tell you why, or which of the 600 modules in that string has the fault. A drone thermography inspection gives you a GPS-tagged map of every thermal anomaly in the plant, classified by severity, with recommended actions — in 48 hours.
Defect Type | Thermal Signature | IEC 62446-3 Class | Typical Generation Impact |
Hotspot cells | Single-cell warm patch, 10 to 40 degrees above mean | Class 1 to 3 depending on delta-T | Accelerated degradation, fire risk at severe stage |
Bypass diode failure | Rectangular sub-module warm patch — one third module size | Class 2 to 3 | Loss of 33% generation from affected module |
PID — Potential Induced Degradation | Systematic cool patches at string edges | Class 2 to 3 | 5 to 30% generation loss from affected strings |
String open-circuit fault | Entire string cooler than adjacent strings | Class 3 | 100% loss of generation from that string |
Soiling | Irregular cool patches on module surface | Class 1 to 2 | 2 to 8% generation loss per soiled module |
Delamination | Irregular thermal non-uniformity across module | Class 2 to 3 | Accelerated degradation, possible moisture ingress |
Plant Size | Inspection Duration | Report Delivery | Coverage |
Up to 1 MW | 4 to 6 hours | 48 hours | 100% module coverage |
1 to 10 MW | 1 to 2 days | 48 hours | 100% module coverage |
10 to 50 MW | 2 to 4 days | 72 hours | 100% module coverage |
50 to 100 MW | 4 to 7 days | 72 hours | 100% module coverage |
Above 100 MW | Project-specific | 72 to 96 hours | 100% module coverage |
Water audits support compliance and reporting under multiple frameworks, including:
Ultrasonic / Electromagnetic Flow Meters for accurate measurement of water flow in pipelines and processes.
Portable Water Flow Meters to assess water usage where permanent meters are not installed.
Pressure Gauges to analyze distribution pressure, identify leakages, and assess system performance.
Digital Water Meters to monitor consumption, trends, and baseline water usage.
Water Quality Testing Instruments to evaluate water characteristics and reuse or recycling potential.
Water Level Sensors / Level Indicators to monitor storage tanks, sumps, and inflow–outflow balance
No. Drone thermography requires the plant to be operating at normal generation levels. Shutting down eliminates the thermal contrast needed to identify faults. Our drones operate at planned altitudes that do not interfere with plant operations or personnel.
For most plants, one annual inspection is the minimum. We recommend post-monsoon inspection in September and October in most of India. Plants with known performance issues, plants over 5 years old, or plants in high-dust or high-humidity environments benefit from twice-yearly inspection.
Yes. We inspect rooftop installations from 100kW upward including industrial rooftops, commercial complexes, and warehouse-top installations. For rooftop inspections, we assess access requirements and obtain necessary permissions from the building owner as part of project mobilisation.