Safe Harbor Inspections

Independent third-party inspections to support your project's eligibility for the U.S. Investment Tax Credit (ITC)

15+ Years

At the PV and BESS Factories in Asia

25+ GWp

Zero Risk Solar® Projects

70+

Experts

350+

PV & BESS Factories Audited

Why Safe Harbor Inspections?

To qualify for Safe Harbor under the Investment Tax Credit (ITC) program, the IRS requires clear, verifiable evidence that physical work has begun. Aligned with IRS ITC guidelines, our Safe Harbor / Start of Construction (SoC) inspections deliver independent, audit-ready documentation that helps demonstrate compliance.

From Battery Energy Storage Systems (BESS) and Photovoltaic (PV) components to transformers, our inspections ensure your manufacturing activities are independently verified and properly recorded.

What We Inspect
Our services cover all major components used in utility-scale solar and battery projects, including:

  • Battery enclosures and containers (BESS)
  • PV modules, mounting structures, and inverters
  • Transformers – including radiators and LV coils
  • Electrical components such as PCS, EMS, and cabling



Our Inspection Scope
We conduct on-site factory inspections to verify and document the following:

  • Timestamped photos of key manufacturing steps (cutting, welding, assembly, winding, etc.).
  • Verification of man-hours and labor activity for each project component.
  • Serial number tracking and matching with purchase orders and BoM.
  • Review of internal factory documents such as job cards, production logs, and QA records.


What You Receive
Within several days after the inspection, you will receive a comprehensive report including:

  • Executive summary of scope and findings
  • Photographic evidence grouped by production step
  • Document review summary (POs, logs, cards)
  • Inspector declaration with signature and date


Optional Add-ons

  • Follow-up inspections for continuous work verification
  • Redacted report versions for investor or tax counsel
  • Multi-site or multi-phase inspection scheduling


Sinovoltaics is your trusted partner in documenting Safe Harbor eligibility across Asia. Contact us to plan your inspection campaign and secure your project's ITC compliance.

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Assuring solar PV and energy storage quality on-site in Asia-Pacific for over 10 years...

Since 2009, Sinovoltaics has audited over 350+ solar PV and battery energy storage factories across Asia-Pacific.

Our solar PV and battery energy storage component-specialized auditors are accredited with the International Register of Certificated Auditors (IRCA) and are proud to support you with a comprehensive and insightful assessment of prospective suppliers by using their extensive experience in the operations management of PV and BESS factories in Asia.

Headquartered in Hong Kong, and with offices in Shanghai, Switzerland, USA, and Vietnam and local quality inspection and audit teams in India, South Korea, Thailand, and Türkiye, we are strategically located close to all solar PV component and battery energy storage manufacturing bases and shipping ports in Asia and North America.

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