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Factory test in the in-house test field for gas or diesel-powered systems Benefit from our unique test field capacity.

Overview of our range of services
Planning &
Assembly &
electrical installation

Reliable services in construction of plants and emergency diesel generator sets

Over five decades of experience in engineering plants and emergency diesel generator sets mean reliability and quality at the highest level. In order to ensure that our power generation systems and emergency diesel generators work reliably at all times, Frerk uses only components from well-known manufacturers. In addition, every power generation unit at Frerk undergoes a comprehensive test run and final quality control.

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We convince by efficiency in manufacturing of emergency diesel generator sets

Efficient products, system planning and operation: We develop energy-efficient power generation systems and future-oriented hybrid solutions according to your needs. The components are selected in such a way that our systems are optimally arranged in a limited space. 

We also offer consulting, production and testing as well as assembly, commissioning, maintenance, remote monitoring and 24-hour emergency service from a single source – completely efficient. For questions about the manufacturing of emergency diesel generator sets or for questions about a non-binding offer, please contact us by contact form or via phone.


The focus of our work is on individual special solutions for decentralized power supply. With our unique solutions, the power is available exactly where you need it.


For us, reliability is one of the most important features in manufacturing of emergency diesel generator sets. With decades of experience, internal quality control, test field tests and components of well-known manufacturers, we can guarantee reliability.


It is our claim to make all our products, services and workflows efficient. Here you will find only energy-efficient systems and future-oriented solutions.

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