Our Solution
We support our clients across all key phases:
In-Production: Production Monitoring, Supply Chain Mapping
Pre-Shipment: Pre-Shipment: Pre-Shipment Inspections, Factory Acceptance Test Witnessing, External Laboratory Testing, Loading Monitoring
Post-Shipment: Warehouse Inspections and Tests, Unloading Monitoring, Site Acceptance Test Witnessing
Why partner with us
Buy-Side Only
Fast Deployment
We can mobilize inspection teams within 72 hours in most key manufacturing locations, minimizing delays and disruptions.
Global Availability
Sustainability-Embedded
Expert Advisory
Case Study: 15MW PV Module Conformity Assessment for a European Developer
Solution: Through 24/7 production monitoring, STS identified the issue early, traced it to lay-up machine malfunction and lamination settings, and recommended immediate corrective actions and rejection of affected modules.
Domestic Content Verification
Secure Tax Credits. Reduce Procurement Risk. Defend Your Claims.
STS provides independent domestic content verification to ensure suppliers are capable of manufacturing domestically and claims are accurate, documented, and defensible by:
• Identifying and assessing key components within the supply chain
• Verifying origin and manufacturing location
• Evaluating domestic content calculations in line with DOE guidance
• Triangulating commercial, production, and logistics records
• Delivering a clear Domestic Content Verification Report
When to use this service:
• During procurement and supplier selection
• Prior to financial close
• During conformity or pre-shipment assessments
Why it matters:
Independent BESS Battery Cell Laboratory Testing
Evaluating battery cell performance and degradation before manufacturing begin
Verify Battery Cell Performance Before It’s Locked In
Independent lab testing that confirms how cells actually perform—so you make procurement decisions based on evidence, not assumptions
STS provides an independent testing service that checks how battery cells actually perform before they are manufactured in bulk to be integrated in the BESS Battery Containers for your project. It helps confirm whether what’s promised on paper will hold up in real use.
AI-Powered Electroluminescence (EL) Testing
Identify Hidden PV Module Manufacturing Defects Before They Become Costly Project Issues
Why Buyers Choose STS for
AI-Powered EL Testing
Independent AI-Powered EL Testing for Greater Confidence in PV Module Quality
AI-Powered Electroluminescence (EL) Testing helps buyers identify hidden manufacturing defects that cannot be detected through visual inspection. STS combines scalable AI analysis with project-specific AI training, buyer-defined acceptance criteria and independent expert validation to help identify additional non-conforming modules before shipment.
Key Differentiators
✓ Project-specific AI models trained for each project
✓ Buyer-defined acceptance criteria, not generic manufacturer defaults
✓ Independent expert validation of AI findings
✓ Flexible inspection scope from targeted sampling to up to 100% of production
A Closer Look…
Why It Matters
Battery cell problems, such as early degradation, are often only found after installation, when fixing them is expensive and disruptive.
Relying only on supplier information can miss issues that show up later in the field.
What STS Does
STS works only for buyers, with no ties to manufacturers or testing labs, ensuring full independence.
We design and manage battery cell testing through third-party labs and turn results into clear input for supplier selection, contracts, and investment decisions.
When To Use It
This service, which needs to be brought up in the supplier contract in order for its results to be enforced, takes place just before early production stages to ensure performance.
Assumptions are tested while decisions can still be changed.