renewable energy

To meet the challenges of energy supply in the future, SEAR offers holistic solutions for the decentralized generation and storage of energy.

In the course of this, SEAR GmbH draws on its many years of know-how from power plant construction. This enables us to act in a goal-oriented manner in the interests of our customers. Together with other small and medium-sized enterprises and distribution network operators, we are working on efficient solutions for transfer technologies, such as power-to-heat and energy storage. In the future, we see ourselves as a system integrator for the construction of intelligent networks and combined cycle power plants. An essential focus is the partnership, an on-time delivery and a high flexibility.


In the offshore sector SEAR GmbH concentrates on the technical equipment of transition pieces for wind power plants as well as of offshore platform for the energy supply of wind farms. In recent years we have equipped, together with our affiliated company, the OIS GmbH, 10 wind farms with an output of 3,000 MW and 8 platforms with electrical equipment.

Transition Pieces:
We provide the complete planning and assembly of the electrotechnical and MSR equipment components on the transition pieces of offshore wind turbines. Our work includes the prefabrication of the electrical systems in our workshop in Rostock as well as the delivery, installation and commissioning of the systems both onshore and offshore. To date, we have equipped more than 250 transition pieces.







Maintenance & Service


Power to heat

We support our customers from concept development through to turn-key construction of power-to-heat systems. Together with our partners we plan, deliver and build power-to-heat systems for municipal utilities and industrial plants. In the last 3 years, we have built 4 power-to-heat plants with a total capacity of 145 MW. In this way, we contribute to the successful integration of this key technology in the energy transition.


Increasing energy use of biomass makes it necessary to integrate biomass plants into existing power plants. We support our partners with complete planning, the implementation of the electrotechnical installation up to commissioning and maintenance.

Energy storage

The sensible use of energy storage devices is necessary for the requirements of switchable loads in the energy grid. SEAR GmbH, in cooperation with partners, implements projects for the effective storage of energy for the requirements of the energy transition. High quality lithium-ion battery storage is used. We plan and achieve the complete electrotechnical systems for a safe and flexible use of the battery storage.

Smart grid


Power to gas


Phase shifter


Energy management



Our quality is guaranteed by many years of experience and expertise in planning, project planning and production of low-voltage switchgears. Our portfolio ranges from low-voltage sub-distribution to complex automation systems. Control cabinets for the plant safety as well as control cabinets for nuclear facilities in accordance with KTA 1401 are an integral part of our range fo services.

Acquired abilities in the production of low-voltage systems in the offshore sector are another part of our diverse range of services, which we intend to systematically expand and perfect. The high level of customer satisfaction in recent years speaks for our experience in the production of transfer and interface distribution, overvoltage protection distributors to the telemetry and communication system (SCADA).





Inspection & Commissioning


Lighting fixtures

SEAR has gained 30 years of experience in lighting systems which is based on products developed in close cooperation with the industry. Our practical approach is inspired by our customers. With ADEXX products we spare no expense on quality, but save our customers operational costs. Our state of the art products allow one technician the ability to install and maintain ADEXX products. Elaborate assembly or disconnecting the lamp is no longer necessary.


Martin Weiss
Head of sections energy production /
renewable energy / offshore

Sven Kühnemann
Head of section production