Shenzhen SMS Energy Storage Technology Co., Ltd. is a wholly-owned subsidiary of Zhengzhou Sanhui Electric Co., Ltd. — a Shenzhen Stock Exchange listed company (Stock Code: 002857) with 29 years of new-energy power conversion experience.
Since 1996, SMS has focused on the new-energy power generation industry — designing solar inverters, wind converters, and now battery energy storage systems. By the end of 2022, our cumulative global inverter installations surpassed 30 GW, with products deployed in over 150 countries.
SMSBESS extends that legacy into the storage era. We design and manufacture the complete BESS stack: from LFP cell selection, through battery management systems (BMS) and power conversion systems (PCS), to fully integrated containerized solutions, residential power walls and commercial & industrial cabinets.
Today our products serve utility operators, IPPs, EPCs, distributors, and homeowners across six continents — with local support hubs and overseas warehouses in USA, Germany, Poland and Iraq.
SMS has been a recognized National High-Tech Enterprise since 1999. Our R&D division — including the Academician Zhang Zhonghua workstation for advanced power electronics — drives continuous innovation across:
Over 500+ patents and certifications, including UL 9540A, IEC 62619, UN 38.3, CE/TUV, CSA, and SGS approvals.
From component selection to final container assembly — every step happens in SMS-owned facilities under ISO 9001/14001/45001 certified processes.
Headquarters in Guangming District, Shenzhen. Main BESS production at the Hongming Industrial Park, Chang'an Town, Dongguan. ~80,000 m² of total facility space.
Local manufacturing & assembly serving the EU market. CE compliance pre-validated. Local technical support and warehouse.
Production base for the LATAM market. INMETRO certification path established. Reduced lead times to South American projects.
USA · Germany · Poland · Iraq (partner depot) — guaranteeing < 72 hours spare-parts delivery to most service regions.
In addition to commercial success, SMS has been recognized at the highest levels of Chinese engineering and innovation policy:
From rooftop solar in suburban Germany to off-grid mining sites in the Andes, our products are engineered for one purpose: to make storing and using clean energy economically inevitable. We do this by relentlessly improving cycle life, reducing levelized cost of storage, and supporting our partners with the technical depth they need to win projects in their markets.
"We don't sell batteries. We sell project-level economics."
— SMSBESS Engineering Team
We welcome customer audits and pre-shipment inspections. Plan a visit to our Shenzhen HQ or Dongguan production line.
