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PV Power Plant Inspection Service
SAT Site Acceptance Test
Before COD, we help our clients to conduct site acceptance test (SAT) according to IEC testing standards (IEC 62446-1 & IEC 61724-1). SAT inspection can verify the construction quality and performance of the PV power plants.
On-Site PV Health Check
The service is carried out in your PV power plants by our technical team with the certified measurement tools and our in-house toolbox. The package includes:
-PV Module Degradation (WiS) -Drone Infrared Imaging (DIR)
-Outdoor Pyranometer Calibration (OPC) -Inverter Efficiency (INV)
-Infrared Image of Electrical box (IR) -String I-V Curve (I-V)
-String Insulation (Insulation) -Array continuity (Continuity)
-Electroluminescence Image (EL)
Technical Due Diligence
WiS is an invaluable tool for potential buyers to evaluate the PV module power level of the intended assets for acquisition
Insurance Claim On-site WiS service also helps the insurance companies or the PV assets owners to determine the level of module damages due to natural disaster e.g. flooding
Asset Management
Provide project investors, owners, and insurance companies perform hardware equipment repairs, case site audits, and case site regular inspections and evaluations.
Dust Analysis System
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A tool to schedule the module cleaning
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Prioritize the cleaning area depending on the soiling status
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Reduce module cleaning frequency
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Maximize the power generation/revenue
Dust Analysis System (DAS 2.0) is a device to quantify the soiling status of operating PV power plants, which can help clients schedule the best time to clean the modules, save the cleaning cost and maximize the power output for owners.
Pre-shipment inspection services
PV Modules takes up more than 40% of total cost of PV power plant. It is very important for investors and owners to ensure the quality of modules. ExTEL provides PSI service, including factory audit, for the clients.
Factory Audit/ Production Monitoring
Deploying quality assurance engineers in the module factory during production to ensure that all required material, process, and production controls are applied correctly.
Pre-shipment Inspection (PSI)
Based on ISO standard, we provide the daily monitoring, sampling test, and loading witness at production line before the shipment to ensure module quality before they are delivered to site.
PV Analyzer Platform
PV Analyzer (PVA) is designed to monitor single PV panel power output in an outdoor environment. Multiple PVA units can be installed within a large scale PV power plant to monitor the energy profile across irregular terrains or elevation.
[ Application ] PV Site-ing System (PSS)
PVA is the perfect tool for quick deployment on the potential project sites to collect the energy yield and environmental data for solar farm financial model calculation.
[ Application ] EXTEL Bi-facial Analyzer (EBA)
PVA is also applicable for benchmarking the performance differences of PV technologies such as
c-Si vs. thin-film technology, bi-facial vs. mono facial PV module.
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