ESS MODERN AG
ABOUT US

ESS MODERN AG
Swiss Quality Since 2001

We have been your partner for energy efficiency and power quality for over 25 years. Swiss engineering for industrial applications worldwide.

Our Mission

We believe that energy must be used efficiently, safely and responsibly. That is why we help to use energy more efficiently, reduce costs and achieve climate goals with proven technology and guaranteed savings.

Our Vision

We make energy safe, sustainable and transparently accessible.

Our Values

Energy Efficiency

We help our customers quickly and easily increase energy efficiency in their buildings and reduce costs.

Responsibility

Energy efficiency is active environmental protection. Our systems significantly and sustainably reduce the CO2 footprint. Climate protection goals are achieved faster through us.

Safety

We demonstrably increase power grid quality, thereby reducing fire and operational failure risk as well as wear on electrical equipment. Our systems are also certified for technical safety.

Trust

We build trust through long-term experience, individual customer consulting, measurements, savings guarantee, best price guarantee and full protection product insurance.

Our History

1979
Founding of today's Chinese partner company in Wenzhou
1988
Constant Voltage Transformer (CVT) introduced and UL certified
1992
First strategic partner for GE Healthcare in China
1994
Wenzhou Modern Group founded with over 10 subsidiaries
1995
Obtained ISO 9001 quality management system
2001
Founding of Swiss "Referenz Technik AG"
2005
Strategic partner of Emerson Network Power
2006
Patent for roller carbon brush (voltage regulator)
2010
CE certification for voltage regulator module
2011
TÜV certification for further developed modules
2025
Renaming of Swiss "Referenz Technik AG" to "ESS MODERN AG"
2025
Strategic alliance ESS MODERN AG with Wenzhou MODERN Group
2025
Development and BAFA certification of the ESS system
2025/2026
After winning the tender, delivery of 12 ESS systems to the district office of the City of Berlin
2026
German full protection product insurance with reinsurance via HDI Global SE