STS is the first company ISO17020:2012 accredited for PV modules pre-shipment inspection, recognized as the highest qualification level for inspection bodies. As a leading provider of technical and advisory solutions in renewables, STS safeguards buyers' investments by delivering tailored quality assurance and compliance services.
Established in 2010 by seasoned French solar industry veterans, the company is driven by a mission to advance sustainability through innovative, client-centric, and market-relevant solutions. STS contributes to effective quality control in renewable energy procurement by establishing STS-STD-PVM1:2018, the first and most widely used industry standard for PV module manufacturing and dispatch.
The company operates across five continents with offices in France, the USA, Asia, China, and India. It supports clients globally with services including conformity assessment, tendering support, market intelligence, contracting support, and performance monitoring. STS combines technical expertise with impartiality, confidentiality, and independence to deliver objective and accurate assessments.
- 60+ full-time inspectors, auditors, and engineers
- Over 70 GW of PV modules production supervised
- Over 65 GW of supply chain assessed
- Over 10 GWh of battery systems inspected
- 100+ active clients representing over 40 GW/year
- 500+ quality assessment projects completed annually