History | HM Power

Development History

2009 2010 2011 2014 2016 2018 2019 2020 2021 2022 2024 2025

2009

2009

HM Power (Guangdong) Co., Ltd. was founded. A Sino- European international R&D team was formed to develop atmospheric pressure sealed natural air insulated (ASNA) RMU /switchgear.

2010

Tested in Warsaw

HM Power’s ASNA RMU passed type- testing at the high- voltage test institute in Warsaw. In the same year, the first set of ASNA RMUs was put into service in Sweden.

2011

Mass production

The ASNA RMU passed type- testing at the Xi’an High- Voltage Apparatus Research Institute in China and entered mass production.

2014

National Standard

The ASNA switchgear solution was incorporated into the China national building standard design package Electrical Design and Installation for Super- High- Rise Buildings. Products were deployed for the power distribution project at the headquarters of State Grid Corporation of China.

2016

Swedish project

The ASNA RMUs were applied to the Tesla Supercharger project in Sweden. ASNA solution was listed in the Catalogue of New Power (Grid) Technologies, compiled by the China Electrotechnical Society, State Grid Corporation of China and China Southern Power Grid.

2018

New-Technology Application Guideline (2018)

The ASNA RMU was selected for the New- Technology Application Guideline (2018) issued by China Southern Power Grid.

2019

ASNA RMU

The ASNA RMU was listed in State Grid’s “Standardized Customization Project for RMUs” and the Catalogue of Standard Materials for Primary- Secondary Integrated RMU Assemblies and Distribution Network Construction & Renovation (2019).

2020

ASNA switchgear

The ASNA switchgear was featured in the Catalogue for the Promotion of Green Technologies compiled by the National Development and Reform Commission (NDRC).

2021

Beijing Winter Olympic Games

HM Power was recognized as a national- level SRDI (Specialized, Refined, Differential, Innovative) Little Giant Enterprise of China. ASNA RMUs were deployed for power- distribution projects of the Beijing Winter Olympic Games.

2022

National Intellectual Property Advantage Enterprise

HM Power awarded the title of National Intellectual Property Advantage Enterprise, recognizing our strong applied- technology R&D capability and solid fundamental- technology reserves. In the same year, ASNA RMUs achieved up to 35 % market share in Sweden.

2024

Hannover Industrial Fair

Pursuing global market expansion, HM Power took part in Hannover Messe. The ASNA innovative technologies and products earned high- praise from customers: “Your products deserve the spotlight at Hannover Messe.”

2025

China Excellent Patent Award

HM Power’s patents related to ASNA technology won the China Excellent Patent Award.

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The global pioneer of atmospheric pressure sealed nature air insulated technology.

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Address: No.20 Xinyue Road, Shunde Science&Technology Industrial Park, Foshan City, Guangdong Province 528300, P.R.C.

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弹窗效果

HM Power to Present Zero-SF₆ RMU Solutions at All Energy Australia 2026

To make the most of your time at the show, we recommend scheduling a dedicated meeting slot in advance. Simply complete the form, and our team will confirm your booking before the exhibition.