The industry’s premier ISO 17025 accredited PV testing and calibration lab.

From the lab to the field, our test programs are designed by and for the downstream PV buying community. We go above and beyond certification standards to assess the bankability of PV modules, inverters, storage, and other balance-of-system equipment.

Our Testing Services

The industry’s premier ISO 17025 accredited PV testing and calibration lab.

From the lab to the field, our test programs are designed by and for the downstream PV buying community. We go above and beyond certification standards to assess the bankability of PV modules, inverters, storage, and other balance-of-system equipment.

pv module testing
PVEL Alisan Chamber

PVEL innovated bankability testing for
solar project developers and investors

Our team developed the first extended reliability and performance tests to evaluate PV modules for the downstream market.

This pioneering work became the foundation of our groundbreaking Product Qualification Programs (PQP) for modules and inverters.

Today PVEL conducts testing at two state-of-the-art indoor laboratories in California. Our outdoor testbed is located at PV-USA, one of the world’s oldest, largest and most sophisticated field testing sites. We also operate on-site at projects in the field and at partner labs around the world.

PVEL innovated bankability testing for
solar project developers and investors

Our team developed the first extended reliability and performance tests to evaluate PV modules for the downstream market.

This pioneering work became the foundation of our groundbreaking Product Qualification Programs (PQP) for modules and inverters.

pv module testing

Today PVEL conducts testing at two state-of-the-art indoor laboratories in California. Our outdoor testbed is located at PV-USA, one of the world’s oldest, largest and most sophisticated field testing sites. We also operate on-site at projects in the field and at partner labs around the world.

Our services benefit the entire solar industry

PVEL helps developers access and optimize financing

We help developers make better procurement decisions with on-demand access to our 600+ product testing reports.

Our data facilitates their selection of proven, bankable equipment for “Approved Vendor Lists” and helps developers access and optimize financing.

PVEL provides proof of quality for smart investment decisions

We give investors objective proof of product quality through our technical due diligence services. In turn, they gain confidence in expected lifetime energy production of solar power systems.

From residential rooftop systems to utility-scale solar power plants, we guide strategic investments and detailed energy yield estimates in projects around the world.

PVEL helps manufacturers market their products to equipment buyers

We help manufacturers prove their products are reliable, durable, and bankable, which in turn drives rapid and widespread adoption across the global market.

Our PVEL reports introduce manufacturers to a global network of 300+ developers, EPC firms, financial institutions and insurance companies with over 30 GW of annual buying power.

PVEL helps asset owners and operators diagnose system underperformance

Our field testing services help asset owners and operators diagnose system underperformance and assess damage from extreme weather and other unforeseen events.

Using PVEL’s data, they can pursue warranty claims more effectively, even when the damage is invisible to the naked eye.

Our services benefit the entire solar industry

Choose partner type to learn more

PVEL helps developers access and optimize financing

We help developers make better procurement decisions with on-demand access to our 600+ product testing reports.

Our data facilitates their selection of proven, bankable equipment for “Approved Vendor Lists” and helps developers access and optimize financing.

PVEL provides proof of quality for smart investment decisions

We give investors objective proof of product quality through our technical due diligence services. In turn, they gain confidence in expected lifetime energy production of solar power systems.

From residential rooftop systems to utility-scale solar power plants, we guide strategic investments and detailed energy yield estimates in projects around the world.

PVEL helps manufacturers market their products to equipment buyers

We help manufacturers prove their products are reliable, durable, and bankable, which in turn drives rapid and widespread adoption across the global market.

Our PVEL reports introduce manufacturers to a global network of 300+ developers, EPC firms, financial institutions and insurance companies with over 30 GW of annual buying power.

PVEL helps asset owners and operators diagnose system underperformance

Our field testing services help asset owners and operators diagnose system underperformance and assess damage from extreme weather and other unforeseen events.

Using PVEL’s data, they can pursue warranty claims more effectively, even when the damage is invisible to the naked eye.

While solar power is a 20+ year investment, the most advanced PV technology is just a few years old - if that. That's where we come in.

We use a variety of methods to test different PV system components in the PVEL lab and outside in the field.

Choose component type to learn more

We provide a wide range of sophisticated electrical, optical, and mechanical module testing in our labs and outdoor testing facilities.

PVEL can support all your testing needs – whether you need fast LeTID characterization, evaluation of PID sensitivity, or bifacial field testing with varying albedo.

Highlighted Capabilities:
  • Module Product Qualification Program (PQP)
  • Statistical Reliability Batch Testing
  • High-Throughput Module Inspection
  • Reference Cells

We go beyond baseline quality and safety testing to ensure that inverters meet key functionality and performance levels.

Highlighted Capabilities:
  • Inverter Product Qualification Program (PQP)
  • Optimizer & RSD Resiliency and Performance Evaluations
  • Comparative Energy Capture | Integrated Power Electronics
  • Custom Performance | Reliability Testing Services

Understand the impact of extreme weather and other unforeseen events with our testing for energy storage equipment.

Highlighted Capabilities:
  • Energy Storage PQP
  • Cell Performance Testing
  • UL 9540A Testing
  • Destructive Testing

We conduct operational, reliability, structural, and performance tests for racking and tracking systems.

Highlighted Capabilities:
  • Installation Efficiency Scope (Time Trial)
  • Mechanical load testing (dynamic and static)
  • Module / Tracker mounting compliance testing
  • Motor and gearbox reliability testing
  • Bearing reliability
  • Tracker Evaluations in both lab and field

We help troubleshoot underperformance and provide support for warranty claims through field testing services.

Highlighted Capabilities:
  • Day-time Field Electroluminescence (EL) Imaging
  • Inverter Performance Evaluations
  • Capacity Testing
  • On-site Performance Troubleshooting

We use a variety of methods to test different PV system components in the PVEL lab and outside in the field.

MODULES

We provide a wide range of sophisticated electrical, optical, and mechanical module testing in our labs and outdoor testing facilities.

PVEL can support all your testing needs – whether you need fast LeTID characterization, evaluation of PID sensitivity, or bifacial field testing with varying albedo.

Highlighted Capabilities:
  • Module Product Qualification Program (PQP)
  • Statistical Reliability Batch Testing
  • High-Throughput Module Inspection
  • Reference Cells
INVERTERS

We go beyond baseline quality and safety testing to ensure that inverters meet key functionality and performance levels.

Highlighted Capabilities:
  • Inverter Product Qualification Program (PQP)
  • Optimizer & RSD Resiliency and Performance Evaluations
  • Comparative Energy Capture | Integrated Power Electronics
  • Custom Performance | Reliability Testing Services
ENERGY STORAGE

Understand the impact of extreme weather and other unforeseen events with our testing for energy storage equipment.

Highlighted Capabilities:
  • Energy Storage PQP
  • Cell Performance Testing
  • UL 9540A Testing
  • Destructive Testing
MOUNTING SYSTEMS

We conduct operational, reliability, structural, and performance tests for racking and tracking systems.

Highlighted Capabilities:
  • Installation Efficiency Scope (Time Trial)
  • Mechanical load testing (dynamic and static)
  • Module / Tracker mounting compliance testing
  • Motor and gearbox reliability testing
  • Bearing reliability
  • Tracker Evaluations in both lab and field
OPERATING SYSTEMS

We help troubleshoot underperformance and provide support for warranty claims through field testing services.

Highlighted Capabilities:
  • Day-time Field Electroluminescence (EL) Imaging
  • Inverter Performance Evaluations
  • Capacity Testing
  • On-site Performance Troubleshooting

Learn more

Contact us for detailed information about our services.