Assure your PV Investment: Quality Control & Consulting Expertise
We boost your solar energy initiatives by providing comprehensive technical, engineering, financial, and strategic advisory support throughout their entire lifespan.



Testing Laboratory
We don’t just keep up with the solar industry; we set the new standards. Our company counts with the first laboratory in Europe accredited for field measurement of the entire PV generation system.
We offer comprehensive quality control testing for every component of your PV plant, including modules, inverters, trackers, and cabling. Whether on-site or in our advanced facilities, all tests are conducted to uphold the highest standards before or after installation. You can trust that your solar investment is in expert hands, ensuring its quality throughout the over 35 years of operation of the PV plant and advancing sustainable energy solutions.
We perform our tests during all the operational phases: SAT, Commissioning, Operational phase, and in end of warranty.
PV modules
· Visual inspection
· Electroluminescence
· STC power – Monofacial PV modules*
· STC power – Monofacial PV strings*
· Thermographic inspection
· Withstanding test
· Degradation test*
· Temperature coefficients*
· STC power – Bifacial PV modules
· STC power – Bifacial PV strings
· Bifaciality test*
· LID test
· PID test
* ISO 17025 accredited procedures.
Inverters and BoS
Inverters
· Conversion efficiency*
· MPPT evaluation
· Derating analysis
· AC signal quality
· Thermographic inspections
Trackers
· Analysis of the tracking algorithm
· Backtracking optimization
· Optimization for irregular slopes
Batteries
· Efficiency test
· Capacity test
* ISO 17025 accredited procedure
PV plants
· Energy performance test – Monofacial PV plants*
· PR test – Bifacial PV plants*
· Energy performance test – Bifacial PV plants*
· End o Warranty audits
· Availability evaluation
· Albedo characterization*
· Thermographic inspections
· Pyranometer calibration
· Reference module calibration*
* ISO 17025 accredited procedures.
PV modules
- Visual inspection
- Electroluminescence
- STC power – Monofacial PV modules*
- STC power – Monofacial PV strings*
- Thermographic inspection
- Withstanding test
- Degradation test*
- Temperature coefficients*
STC power – Bifacial PV modules
STC power – Bifacial PV strings
Bifaciality test*
LID test
PID test
* ISO 17025 accredited procedures.
Inverters and BoS
Inverters
- Conversion efficiency*
- MPPT evaluation
- Derating analysis
- AC signal quality
- Thermographic inspections
Trackers
Analysis of the tracking algorithm
Backtracking optimization
Optimization for irregular slopes
Batteries
Efficiency test
Capacity test
* ISO 17025 accredited procedures.
PV plants
PR test – Monofacial PV plants*
Energy performance test – Monofacial PV plants*
PR test – Bifacial PV plants*
Energy performance test – Bifacial PV plants*
End o Warranty audits
Availability evaluation
Albedo characterization*
Thermographic inspections
Pyranometer calibration
Reference module calibration*
* ISO 17025 accredited procedures.
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Consultancy
We provide advisory services in the design phase of your PV plant. Our goal is to ensure component quality, minimize investment risk, and optimize the economic return on your project.
Development
We help you estimate your PV plant production and optimize the design backed by our more than 15 years of experience.
- Productivity studies
- TOY calculations
- Analysis of radiation and temperature models for the site
- Preparation of contractual annexes
Construction & Commissioning
We offer a comprehensive range of services to guarantee the project quality and the fulfilment of technical & contractual specifications.
- Site acceptance tests for PV modules and inverters
- Commissioning tests
- STC power campaigns for mono and bifacial modules
- Accredited performance tests
- PV plant characterization
- Warranty claims
Operation
From data-driven performance audits to rigorous compliance evaluations, we leave no room for uncertainty.
- Performance audits based on historical operating data.
- Evaluation of compliance with contractual requirements.
- Comparison and evaluation of plant performance against initial estimates.
- Loss chain evaluation.
Banking & Financing
Our Advanced Quality Control Procedures allow improving financing conditions thanks to a performance uncertainty decrease and a better risk identification & mitigation strategy.
Development
We help you estimate your PV plant production and optimize the design backed by our more than 15 years of experience.
- Productivity studies
- TOY calculations
- Analysis of radiation and temperature models for the site
- Preparation of contractual annexes
Construction & Commissioning
We offer a comprehensive range of services to guarantee the project quality and the fulfilment of technical & contractual specifications
- Site acceptance tests for PV modules and inverters
- Commissioning tests
- STC power campaigns for mono and bifacial modules
- Accredited performance tests
- PV plant characterization
- Warranty claims
Operation
Where precision meets performance. From data-driven performance audits to rigorous compliance evaluations, we leave no room for uncertainty.
- Performance audits based on historical operating data.
- Evaluation of compliance with contractual requirements.
- Comparison and evaluation of plant performance against initial estimates.
- Loss chain evaluation.
Banking & Financing
Our Advanced Quality Control Procedures allow improving financing conditions thanks to a performance uncertainty decrease and a better risk identification & mitigation strategy.
Consultancy
We provide advisory services in the design phase of your PV plant. Our goal is to ensure component quality, minimize investment risk, and optimize the economic return on your project.
Development
We help you estimate your PV plant production and optimize the design backed by our more than 15 years of experience.
- Productivity studies
- TOY calculations
- Analysis of radiation and temperature models for the site
- Preparation of contractual annexes
Construction & Commissioning
We offer a comprehensive range of services to guarantee the project quality and the fulfilment of technical & contractual specifications.
- Site acceptance tests for PV modules and inverters
- Commissioning tests
- STC power campaigns for mono and bifacial modules
- Accredited performance tests
- PV plant characterization
- Warranty claims
Operation
From data-driven performance audits to rigorous compliance evaluations, we leave no room for uncertainty.
- Performance audits based on historical operating data.
- Evaluation of compliance with contractual requirements.
- Comparison and evaluation of plant performance against initial estimates.
- Loss chain evaluation.
Banking & Financing
Our Advanced Quality Control Procedures allow improving financing conditions thanks to a performance uncertainty decrease and a better risk identification & mitigation strategy.
Qualifying Supply Chain – PV & BESS
100%
Independent from the manufacturer
FAT
On every order, every technology
ISO
17020 & 17025
24/7
Inspection availability
01 - ADVISORY
Supply Chain Advisory
- Supplier qualification & technical due diligence
- BOM review and design freeze
- Supply risk, traceability & ESG
02 - QA /QC
Quality Assurance
- Inspection & Test Plans (ITP) and acceptance criteria
- Non-conformance management to closure
- Real tiem digital reporting with evidence
03 - INSPECTION
24/7 Factory inspection
- Pre-production, in-line (DUPRO) and pre-shipment (PSI)
- Witness testing and loading supervision
- Continuous oversight, not one-off checks
04 - TESTING, FAT & SAT
Testing at Source, FAT & SAT
- Product, BOM and batch testing via ISO 17025 accredited lab
- In-house Al-powered EL test for defect detection and classification
- Witnessed Acceptance Tests before and after shipment
Supply Chain Advisory
- Supplier qualification & technical due diligence
- BOM review and design freeze
- Supply risk, traceability & ESG
Quality Assurance
- Inspection & Test Plans (ITP) and acceptance criteria
- Non-conformance management to closure
- Real tiem digital reporting with evidence
24/7 Factory inspection
- Pre-production, in-line (DUPRO) and pre-shipment (PSI)
- Witness testing and loading supervision
- Continuous oversight, not one-off checks
Testing at Source, FAT & SAT
- Product, BOM and batch testing via ISO 17025 accredited lab
- In-house Al-powered EL test for defect detection and classification
- Witnessed Acceptance Tests before and after shipment
THE GATE BEFORE ANY SHIPMENT
One Factory Acceptance Test, every technology
Modules
✓ Power class & flash test
✓ EL test
✓ Visual & safety check
Inverters
✓ Functional & protections
✓ Grid behaviour
✓ Comms / SCADA
Trackers
✓ Motion & end-stops
✓ Controller & sensors
✓ Torque & structure
BESS
✓ Capacity & RTE
✓ BMS, thermal, fire
✓ Comms & sign-off
One traceable chain of control BATTERY STORAGE
1
Advisory & supplier qualification
2
Quality & inspection plan (ITP)
3
Production monitoring (DUPRO)
FAT
Factory Acceptance Test (witnessed)
5
Shipment & SAT / commissioning
Storage gets the deepest gate
Storage is safety-critical, so its FAT goes furthest: the full system is proven before it ships, and re-verified on site at the Site Acceptance Test (SAT). QPV can run both, so what you accept is what was contracted, and what operates.
Capacity & RTE
Usable energy, round-trip efficiency
BMS & protections
SoC/SoH, balancing, alarms, trips
PCS & grid behaviour
Charge/discharge, response, ramps
Thermal management
HVAC / liquid cooling performance
Fire detection & suppression
Aerosol/gas, venting, NFPA 855
Comms / SCADA / EMS
Telemetry, set-points, integration
Standards. Our inspection and FAT protocols reference, as a minimum UL 9540 / 9540A, IEC 62619 / 63056, UN 38.3 and NFPA 855.
Cell & component
Supplier qualification
Production
DUPRO monitoring
FAT
Witnessed, pre-shipment
PSI & logistics
Loading & container sea
SAT
Commissioning on site
Quality control across the full storage lifecycle, with the FAT as the gate between factory and site.
Explore all our solutions
Consulting / Testing
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Specific Scada system for PV plants with our own PPC.
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Knowledge Hub
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Expert Articles
Find here the articles written by our solar PV experts and increase the profitability of your solar power plants.
Success Cases
Discover how to get the most out of your plant by following the example of leading companies.