Oblique aerial view of the ETENZ manufacturing campus showing multiple factory halls and rooftop solar panels

ETENZ

Prefabricated enclosure manufacturing partner for energy and digital infrastructure

Scroll to explore

Company Profile

ETENZ specializes in designing and manufacturing prefabricated enclosures and integrating the systems inside them, serving the power, renewable energy, data center and industrial sectors. Founded in Shanghai in 2002, the company started out building switchgear enclosures and has long supplied power and renewable energy equipment makers in China and overseas. More than two decades on, enclosure manufacturing is the core of its business, supported by the integration of five systems: electrical, thermal management, environmental control, fire protection and security.

ETENZ products span electrical, new energy, compute, water treatment and custom enclosures. Each enclosure is designed around the equipment it houses and the environment it operates in, in standard 10, 20 and 40 ft sizes or built to order.

To reduce site work and make delivery more predictable, ETENZ installs and wires all five systems at its factory and ships each enclosure as a complete unit.

Customers can buy the enclosure alone or selected systems, or commission OEM/ODM production under their own brand. Tier-one equipment integrated inside remains traceable to its source and keeps the original manufacturer's warranty.

ETENZ operates a 70,000 m² manufacturing site in Fengxian, Shanghai, with more than 500 employees, and builds over 5,000 electrical equipment housings and prefabricated enclosures a year. The company holds ISO 9001, ISO 14001 and ISO 45001 management system certifications and factory approval from the American Bureau of Shipping (ABS). Production and testing reference IEC, UL and NFPA standards and EU CE requirements, as applicable to each product line.

To date, ETENZ products have been sold in more than 20 countries and regions and delivered to over 3,000 projects.

20+
Years of Industry Experience
70,000+
m² Manufacturing Facility
20+
Countries & Regions Served
3,000+
Projects Delivered

Partners

Core Capabilities

Custom Engineering Support

Multidisciplinary Seamless Collaboration

ETENZ works with customer engineering requirements across structural, electrical, thermal management, and control-system needs to support buildable modular infrastructure solutions.

Our manufacturing process combines structural fabrication, electromechanical assembly, system integration, commissioning support, and factory checks according to project requirements.

Factory-built modular platforms can help reduce on-site installation complexity and support more predictable delivery coordination for domestic and international projects.

Certifications & Compliance References

Documentation scope and applicability may vary by product configuration and project requirements.

UL
CSA
CCC
CE
ETL
RoHS
TUV
ISO 9001
Classification Society Certification
ABS Factory Approval
CSC
ISO 14001
ISO 45001

Loading...

Our Journey

2002

ETENZ Founded

ETENZ established a switchgear enclosure production line in Fengxian, Shanghai, building early engineering capability around electrical equipment structures.

2003

Supplier for Shanghai Yikai Electric

With support and guidance from Shanghai Yikai Electric, ETENZ continued to improve product quality, manufacturing processes, and delivery coordination.

2004

Strategic Partnership with Shanghai Yikai Electric

ETENZ built an electrical prefabricated enclosure production line for Shanghai Yikai Electric and began developing its OEM business.

2006

OEM Supplier for GE Plus Switchgear

Through cooperation with General Electric, ETENZ established a high-end switchgear enclosure production line and further strengthened process control and quality management.

2008

Supplier for International Electrical Companies in China

As switchgear enclosure manufacturing capability continued to improve, ETENZ began serving more domestic and international electrical equipment companies.

2011

R&D-Level Partner for Sungrow

ETENZ supported Sungrow in completing an inverter prefabricated enclosure product and establishing an inverter prefabricated enclosure production line.

2013

Prefabricated Enclosure Supplier for Sieyuan Electric

Through cooperation with Sieyuan Electric, ETENZ further upgraded its prefabricated enclosure production line and strengthened project-based manufacturing and delivery capability.

2016

Prefabricated Enclosure Supplier for NARI

Cooperation with NARI supported the application of ETENZ prefabricated enclosure products across power and new energy scenarios.

2021

R&D-Level Partner for a U.S. Customer

ETENZ developed a data center prefabricated enclosure and established a related production line, extending modular integration capability into digital infrastructure.

Present

Continued Focus on Enclosure and Integration Technologies

ETENZ continues to focus on electrical equipment enclosures, prefabricated enclosures, and modular integration products, providing stable engineering manufacturing and delivery support for partners.

Company development timeline background