High-Accuracy Solar Testing Services in a Temperature Controlled Laboratory Setting

Spire Solar Iberia provides laboratory services in two key ports of Europe, in addition to consulting services, to ensure the maximum useful life of PV projects, optimize their production and minimize investment risks.

Laboratory Services

We pride ourselves on our physical climate-controlled laboratories where testing is always performed under STC conditions (25 degrees C).

We have our own state-of-the-art measurement equipment that is trusted by top solar research institutes like the Fraunhofer Institute or the US Department of Energy’s National Renewable Energy Laboratory (NREL).

Performance Testing of PV Modules conform IEC 61215:MQT 06

Verification of module power output or Pmax (IV Curve) under the lowest measurement uncertainty of only 2%, using the Spire 5100 SLP Blue and according to IEC 61215:MQT 06.

  • A+ / A+ / A+ rating for spectrum, uniformity and stability
  • 120ms long pulse for accurate measurement of high-efficiency modules
  • Calibration to best-fit reference modules

Electroluminescence (EL) Testing of PV Modules conform IEC 60904-13

Inspection for physical defects, which can lead to underperformance or early failure of PV modules. EL testing is critical to avoid potential risks and cost overruns, optimizing the production of the PV project.

Some typical defects found on inspection:

  • Microcracks
  • Soldering Defects
  • Grid-Finger Defects
  • Inactive Cells
  • Mixed-quality cells

Consultancy Services

Many module buyers do not realize that quality and performance criteria can be optimized in the purchase contract elevating the overall quality of modules that are supplied.

As a result, there are frequently large gaps between the manufacturer’s quality standards and the quality standards of the buyer, resulting in issues with claims.

Our experts can provide support in bridging these gaps through these consultancy services:

  • Purchase contract optimization
  • Acceptance criteria definition
  • Claim Support

Additional Services

To ensure the entire process runs smoothly, we also provide these key services creating an end-to-end solution for customers:

  • Unpacking and repackaging of modules in their original packaging
  • Logistics (pickup and redelivery of modules)
  • Storage


If you are a PV plant owner, developer, EPC, financial institution or investor, and you want to ensure maximum profitability and operational safety of your photovoltaic project, get in touch with us.