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We celebrate 25 years!

On July 15, 1994, our company was registered in the Commercial Register (then under the name ORGREZ SC, a.s.). 25 years have passed since then! Throughout this long period of time, we are trying to offer you, our customers, the highest quality engineering services and energy products. And we hope this will be the case even in the next 25 years.


STEP (Support of the Trade and Electricity Production) is a modular scalable information and real-time control system. STEP controls electricity power production with compliance of business requirements of power company – in terms of a liberalized electricity market.

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Company new graphic presentation

Our company is switching to a new graphic presentation based on the new logo and the new basic color of the company. New graphic presentation includes web pages, printed materials and electronic corporate documents. We believe that a new, modern presentation will help us better reach existing and new customers.

About company

The OSC, a.s. company is focused on providing high-quality, technically advanced engineering services and products for small as well as large power producers, distributors and resellers. Its’s size among medium-sized businesses allows individual access to customers. Most services are tailored on the basis of an individual contract with the customer. The tasks are solved by flexibly created project-oriented teams, always led by technically competent and experienced project managers.

The beginnings of the know-how are tied up with the building of automation in Czechoslovak power industry. This long tradition has made possible to acquire the valuable knowledge and the rich expertise currently available to the company.

We rely on professionalism and high quality of service.

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Simulation systems division

The activity of this division is focused on design, development, manufacturing and delivery of state of the art training simulators for power industry, especially for nuclear power plants. The development team has a long tradition of over 30 years in this field.

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Control Systems Division

The division provides a wide range of engineering services associated with design, feasibility study, realization, launching, verification, tuning, modification and operation optimization of automatic monitoring and control systems structure and function, used mostly for real time applications in power industry: mainly power plants and heating units burning fossil fuel, nuclear power plants, hydro power plants, etc.

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Selected references

ČEZ, a.s. - Power plant Mělník 1

2018 - 2019
Conversion of algorithms from control system ZAT to control system Ovation, optimization, start-up and tuning of boilers K1, K2 and turbines TG1, TG2 in power plant Mělník 1



ČEZ, a.s.

Power plant terminals modification in power plants Hodonín, Dětmarovice and Ledvice - support of local consumption powered directly from the power plant



ČEZ, a.s. - Nuclear Power Plant Temelín

2004 - 2019
Conducting of design changes and its implementation in PCS control system (WDPF - Westinghouse) of nuclear power plant Temelín.



Elektrárna Počerady, a.s. - Power plant Počerady

Remote control of units B2 to B5 in island mode operation at power plant Počerady



Fortum Generation AB - Hydro power plant Gammelänge (Sweden)

Identification measurement of Kaplan turbine before reconstruction in hydro power plant Gammelänge (Sweden)



Sokolovská uhelná, právní nástupce, a.s. - Combined cycle Vřesová

2001 - 2018
Ancillary services certification measurement of primary control, secondary control, minute reserve available within t minutes and island operation on units of CCPP Vřesová