The company

The family-run company SOKRATHERM is active in the field of energy efficient and clean generation of heat and power since its founding in Hiddenhausen (NRW) in 1977. In 1992, SOKRATHERM founded a subsidiary in Nordhausen (Harz) on the site of the then existing engine manufacturer “IFA-Motorenwerke” and erected an own production plant in 1996. With the continuously rising demand for its CHP units, it doubled its production area in 2008 and added a third hall in 2011/2012. The 4.00 m² of workspace today contain the CHP unit production with test sites and switchgear cabinet construction as well as the construction, purchasing, documentation and technical service departments equipped with latest information technology. Central administration, sales and project department are located in Hidddenhausen. In recent years, additional sales offices in Germany, commercial agencies in eastern Europe and international partners have joined. Currently SOKRATHERM engages over 120 employees including ca. 10 apprentices.

The focus of its product range has extended from its beginnings in the 50 kW class to substantially more powerful CHP units: In 1993, the company has become the market leader of the 100 kW compact CHP unit class and presented its first 200 kW compact CHP unit seven years later on the EXPO 2000 fair. In the currently most powerful SOKRATHERM CHP scheme (4 x GG 402) the first GG 402 CHP units built were installed. Since 2013 SOKRATHERM’s most powerful cogeneration unit type GG 530 produces 532 kW of electric power. It is the world’s most compact CHP unit of the 500 kW class.

In 2007 SOKRATHERM emphasized its ambitious quality standard by ISO 9001 certifying its quality management system and laid the foundation for further growth. Due to the high customer satisfaction measured and proven since then, the company continued its growth path in the following years.

The innovative compact CHP units have an excellent reputation on the market. Numerous reports in the professional press, awards as well as the installation in many pilot and model schemes confirm this as well as the satisfied customers of over 1500 compact CHP units delivered worldwide.


Founding in Hiddenhausen (NRW in central northern Germany) by Dipl.-Ing. Hermann Meinhold


Founding of a subsidiary in Nordhausen (Harz in mid-eastern Germany)


Entrance into foreign markets via Benelux and Poland


Successful certification by DIN EN ISO 9001


Enlargement of the production in Nordhausen to 3.500 m²


Certification for the reqirements for low and mid voltage guideline


Implementation of an ERP system


Construction of a new head office building in Hiddenhausen

Fair presence

E-world energy & water 11.-13.2.2020 in Essen

On the E-world fair we present our compact CHP unit GG 50 in Hall 2 on stand 505, Contact us for appointments and invitation codes!


The company

Powered by tradition

For over 40 years we find our drive in climate protection and continuously improve the energy efficiency and performance of our products.


Compact CHP units

Our cogeneration units over 50 kW

With their ability to provide and regulate power within seconds CHP units units are the perfect partner of fluctuating renewable energy sources.


Kachel SOKRATHERM Referenzen


Reference examples

Whether in hotels, factories, hospitals, industrial sites or water purification plants - our compact CHP units prove efficient and reliable operation in all kinds of objects.


Locations and partners

We're there for you

Contact data to international sales locations and company sites in Germany.