Due Diligence

Redefining Vendor Due Diligence with New Buyer-Side, Program-Based Model designed to deliver supplier audit results up to 50% faster while improving visibility into up to 40% more procurement risk variables.

 

Supplier Due Diligence

STS evaluates whether a supplier can reliably support project execution across operational, manufacturing, financial, and compliance areas including:

  • Operational capability
  • Financial and organizational stability
  • Quality management systems
  • Supply chain and delivery risk

Manufacturing Due Diligence

STS evaluates whether a manufacturing facility can consistently produce at the required quality, scale, and operational maturity needed to support long-term project execution and delivery requirements including:

  • Production capacity and scalability
  • Factory QA/QC systems
  • Process traceability and consistency
  • Site-level operational risk

Technology Due Diligence

STS evaluates the underlying technology platform behind a product, helping buyers understand technology maturity, lifecycle behavior, and long-term reliability risk before large scale.

Technologies are often adopted by multiple manufacturers and may reach commercial deployment before long-term performance is fully understood.

  • Technology maturity and adoption
  • Reliability and degradation risk
  • Lifecycle and bankability considerations
  • Knowledge failure and modes

Product Due Diligence

STS evaluates a specific product from a manufacturer to determine whether it is technically suitable, reliable, and aligned with project requirements.

Even when products use the same underlying technology, differences in design, materials, manufacturing implementation, and engineering choices can significantly impact long-term performance and durability.

Including:

  • Product design and engineering review
  • BOM and specification validation
  • Reliability and durability assessment
  • Datasheet and performance review
solar and battery energy storage market intelligence analysis dashboard

Delivery Approaches and Tailored Assessments

Program-Based Due Diligence

STS provides structured, repeatable assessments designed to support procurement decisions at scale.

  • Faster turnaround
  • Comparable evaluations
  • Consistent methodology
  • Repeatable procurement intelligence 

Tailored Assessments

STS provides customized investigations designed around specific client concerns, technologies, or project risks.

  • Flexible scope
  • Project-specific analysis
  • Expanded technical investigations
  • Customized reporting and support

Why Partner With Us

STS delivers timely analysis on market developments affecting solar and battery storage supply chains.

Solar and battery storage markets are shaped by rapidly evolving technology shifts, supply chain developments, pricing dynamics, and regulatory changes.

STS Market Intelligence tracks these developments continuously and provides clients with timely analysis to support procurement, investment, and risk management decisions.
When significant market or policy events occur, STS delivers structured insight quickly so clients can understand the implications and respond with confidence.

Case Study

Short-listing PV Module Suppliers for a U.S. Developer

A U.S. solar developer asked STS to support the selection of PV module suppliers for a long-term purchase agreement. They had already identified 4 potential suppliers and needed STS to (1) validate the list and (2) assess each supplier’s capabilities with comparable data to support internal decision-making.

Challenge
The client’s list didn’t reflect the full range of reliable market options, especially as global supply chains were shifting. They also wanted to:
– Diversify sourcing, including options from India
– Factor in carbon footprint
– Work with a trusted third party able to audit manufacturing sites directly

Solution
STS delivered:
– A tailored procurement strategy and selection criteria
– An independent evaluation of the 4 suppliers
– A benchmark and a ranking based on consistent metrics

Result
The client identified 4 alternative suppliers, improved supply chain sustainability, and aligned with global ESG standards.

Beyond Forecasts: STS Launches Execution-Focused Market Intelligence for PV and BESS BuyersClick to learn more
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