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About Calsion

Calsion, headquartered in Hefei, China, is a national high-tech enterprise with a 33,000 m² integrated R&D, production, and testing facility. For over 30 years, it has been a leader in high-end emergency power systems, delivering critical power solutions worldwide. As a core strategic partner to MTU, Perkins, and Mitsubishi—with 21 years of dedicated collaboration with MTU—Calsion offers not only genset manufacturing but also full system integration and turnkey project delivery.With deep expertise and extensive project track records in the data center and semiconductor sectors, Calsion stands as a trusted partner for mission-critical facilities, ensuring uncompromised reliability in the most demanding environments.

Partner with Calsion, power your global success.

  • 1996

    Company founded

  • 33,000

    Factory area

  • 12,000 +MVA

    Total installed capacity

  • 20,000 +Units

    Annual production capacity

Corporate Culture

Rooted in our culture, we uphold responsibility and forge ahead with perseverance.
  • Vision

    Become a global leader in critical power supply solutions.

  • Mission

    Providing reliable power for the stable operation of the digital world.

  • Values

    · Perfection · Commitment
    · Foresight · Growth

Company Milestones

Learn more about our development history.

2025

Provided products and services for a ByteDance computing center project, reinforcing its role as a benchmark in computing infrastructure collaboration.

2024

Calsion had been providing security services for the Boao Forum for Asia for 23 years.

2023

Participated in the 2023 Beijing International Microelectronics Symposium and IC WORLD Conference.
Mr. Tobias Ostermaier, President of Global Operations at Rolls-Royce Power Systems, led a delegation on a visit to Calsion.

2022

Calsion officially celebrated its tenth anniversary of operating in Hefei.

2021

Provided services to SMIC’s projects, empowering its core business systems.

2020

Be awarded the title of “National Little Giant”— an official designation for specialized, sophisticated, distinctive, and innovative SMEs.

2019

Participated in the China International Import Expo and China Electronics Expo.

2018

Founded Calsion Shanghai Technology Co., Ltd.

2017

Major breakthrough achieved in power supply solutions for skyscrapers, with successful bid for CITIC Tower (China Zun) project.

2016

Advanced into the semiconductor industry, winning the bid for the 12-inch integrated circuit chip manufacturing base project of Nexchip.

2014

Calsion's new generation of intelligent and environmentally friendly dedicated generator sets for data centres.

2013

Calsion's new product: Mobile Lighthouse Release.

2012

Won the bid for China's first Tier IV data center project — China Minsheng Bank Shunyi Headquarters Base.
On October 26, 2012,started the operation of Hefei Calsion Electric System Co., Ltd.

2011

Founded Calsion (Beijing) Electric System Co., Ltd.

2009

Laid the foundation stone for the headquarters of Hefei Calsion Electric System Co., Ltd.

2006

As the OEM of MTU, Calsion successfully utilised the first engine produced by MTU Suzhou factory.

2005

Established Dongguan Calsion Electric Power System Co., Ltd.
Established Calsion (Hong Kong) Investment Co., Ltd.

2003

Founded Hangzhou Calsion Power Engineering Co., Ltd.

2002

Founded Hainan Calsion Power Engineering Co., Ltd.

1996

Founded Hainan Kaida Electronic Machine Installation Engineering Co., Ltd.
  • 2025

  • 2024

  • 2023

  • 2022

  • 2021

  • 2020

  • 2019

  • 2018

  • 2017

  • 2016

  • 2014

  • 2013

  • 2012

  • 2011

  • 2009

  • 2006

  • 2005

  • 2003

  • 2002

  • 1996

Qualifications & Honors

We possess a range of internationally and domestically recognized qualifications and honors.
  • Patent
  • Honor
  • Certification
  • Patent

  • Patent

  • Patent

  • Patent

  • Patent

  • Service Certification Certificate

  • Standardization Of Safe Production Class I

  • Class II Certificate For Mechanical and Electrical Installation

  • National High-Tech Enterprise

  • National Intellectual Property Advantages

  • GUANGXI YUCHAI OEM Certification

    GUANGXI YUCHAI OEM Certification

  • Marathon OEM Certification

  • MHI OEM Certification

  • MTU OEM Certification

  • TLC Certification

  • CE Certification

Company Environment

Our Team

High-End Emergency Power System Solutions Provider