Learn the history of our company
Since the foundation of the company, our strategy has been building on ambitious and talented youth. The outstanding expertise of our founder, which he has acquired over the years in the electrical industry, continues to flourish along with the dynamism of the next generation, which includes sustainability and the continuous expansion and transmission of knowledge to future generations.


Foundation of the company


Handover of the first wind power project, we became a Private Company Limited by Shares


More than 200 MW renewable power plant construction reference


Videoton acquires 51% of STS Group Zrt.


The company is returned to the founder


Transformation into a group of companies


Successful licensing of 32 MW solar power plant


First 499 kW construction reference


500 MW successful solar power plant licensing


26 MW construction reference


More than 1,200 MW of licensed solar power plant projects


Construction and commissioning of currently the largest solar power plant with its own 120/20 kV substation


50 MW construction reference


Get to know our motivation
Our vision is embodied in helping to shape a world where we can look at electricity as a public good. In our view, it is necessary to rely on resources in the process of energy production, the exploitation of which in no way hinders future generations from exploiting these resources as well. Our mission is to reform the concept of energy both technically and philosophically.

Why us?

Just a few arguments in favor of us
For us, engineering is not just a job, but a profession. We are not looking for how to solve a task merely, but how to solve it in the most optimal way possible. We do not manage contracts but do engineering work with a project approach. We are not just owners of our companies but also the engineers themselves. In every profession, the specialist determines the quality, we ourselves are the guarantee of this.


Get to know our motivation
The founder of the STS brand, Tamás, has been active in the energy market for more than 35 years, starting his career at ÉDÁSZ as a novice engineer. Climbing the ladder, he left the company in 2002, after its privatization, from the position of Network Director, which at the time was already operating as EON. Since then, Tamás has been able to carry out several large-scale renewable energy projects, including most of the Hungarian wind power capacity and the largest solar power plant projects in the country. Tamás holds degrees in electrical engineering and economics from the Budapest University of Technology and Corvinus University.

Tamás Gyepes


Balázs Gyepes

General Manager
Balázs has been preparing for an energy career since his childhood, with which he embodies not only the generational change but also the consistency of the company. He aims to bring a new spirit to the energy supply so that it can be sustained by relying on renewable energy systems too. He absorbed the power plant approach during his degree in Energy Engineering at the Budapest University of Technology, which he develops every day in combination with his constant interest in renewables. Since 2013, he has been dealing with solar systems mainly in power plant sizes.

Róbert Kanyó

Head of Construction
Róbert first had the opportunity to learn more about renewable energetics in 2002 during an exchange student course in Germany. Later, he gained further knowledge of this dynamically developing field of energy during his bachelor and master studies in energy engineering at the Budapest University of Technology. During his university years, he studied and gained experience in solar power systems at one of the best universities in Belgium. After his university years, he worked on the design of household-scale solar power plants and gained management experience in a multinational company. Róbert joined the STS Group in 2017, initially in the design department, where he became familiar with the Hungarian procedures for the design and permitting of power plants, and gradually became involved in the construction process. Currently, his main responsibilities are the coordination of the construction department and the commissioning of power plants and electrical substations.

Arnold Kovács

Head of Design Division
Arnold holds a bachelor's and master's degree in Energy Engineering from the Budapest University of Technology and Economics, where he mastered the principles of implementing sustainable and environmentally friendly energy systems. He has considered the protection of nature to be of paramount importance since he was a child, and his personal goal as an engineer is to take an active part in the environmentally friendly transition of the energy system. Since the beginning of 2019, he has been working in the design department of the STS Group, focusing on the fastest changing field of energetics, renewable energy production systems and their integration into the grid. Arnold oversees and coordinates the licensing and designing of plant-scale solar power systems and the designing of medium and high voltage network connections.

Company Group

The acronym STS has been a well-known and respected name in the electrical energy industry for over 15 years. From the very beginning, our company has been characterized by youthful dynamism and reliability, which combined with the experience gained in the past years, made our organization capable of quality engineering at an international level. Since our separation from STS Group Zrt., the purpose and operation of our company have not changed. Customer-centric, reliable, high-level service continues to be at the forefront of our business. These traditions are the ones on which we will build our work in the future, besides maintaining the company’s reputation. Accordingly, we will continue to make deliberate progress and improve our services step by step.

Since the establishment of our company, we have considered environmental protection important, thus we prioritize environmentally friendly and energy-efficient solutions.

We have profound expertise in the design and implementation of renewable energy systems, which is why our company places great emphasis on the quality of design, which is carried out by our prominent colleagues with up-to-date knowledge. Many years of engineering experience, quality, reliability, dynamism - this is STS Group.

STS Group is mainly engaged in the development, design, construction, and operation of power plants based on renewable energies. Within the company group, the individual tasks are organized into separate companies, so STS ECO Ltd. (STS Engineering & Construction Ltd.) performs the designing and licensing of each power plant and also the high-voltage network and electric power constructional tasks, while STS Service Ltd. performs the implementation of power plants and medium voltage network connections.

Contact us

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