STS

About

STS, founded in 2010 by French solar veterans, specializes in PV quality control, inspection, and certification services that enable clients to meet sustainability standards. With the longest track record of audits in the solar sector, STS pioneered industry standards for PV module approval and became the first ISO17020‑accredited inspection body for renewables. Operating in 15 countries with the largest fleet of full‑time inspectors, the firm conducts over 500 quality assessment projects annually for leading EPCs, developers, and utilities, earning a top NPS and strong word‑of‑mouth referrals. STS’s commitment to expert advisory, rigorous sustainability assessments, and a client‑centric culture positions it as a trusted partner for the global renewable energy supply chain.