New IVITAS website to be launched soon

We are currently working on a fresh, new IVITAS website that will provide an extensive overview of our services and better user experience. We’re looking forward to sharing it with you in the near future.

Printing and copy services

Czech version only Read more

Part time job for students

Are you interested in gaining new working experience? Join our team, now! Read more

Boiler Conference Brno 2017

IVITAS introduced boiler concept for black coal multidust combustion Read more

TPP Detmarovice – gas boiler room extension

IVITAS drew up the project documentation for building permit and the technical part of the tender documentation

Orifice plates

Orifice plates installation for K3 boiler at Thermal power plant Chvaletice was successfully completed in December 2016. Read more


IVITAS successfully put into operation 8 pcs of silencers for Ledvice gas-fired power plant. Read more

Prunerov power plant (3x250MWe) – complex rehabilitation

IVITAS is the author of conceptual design and realization documentation for the boiler rehabilitation project. Currently, supervision services are provided by IVITAS in line with finalization works and hand-over to the investor.

SCR reactor – Detmarovice power plant

IVITAS realizes first ever SCR (Selective Catalytic Reduction) reactor in the Czech Republic. Read more

Detmarovice power plant (DeNOx program)

IVITAS is the author of conceptual design of the primary measures and realization documentation for the boiler rehabilitation project (fuel - hard coal).

Optimizing flue gas before absorption - Feasibility Study

We are preparing a feasibility study for our client Sev.en Engineering ( that involves installation of a mixing module in the flue gas ducts that run between the units and the absorber at the Chvaletice power plant in the Czech Republic. Our proposed solution ensures the even mixing of flue gases from each unit in order to homogenize the incoming concentration of solid pollutants before they reach the inlet to both absorbers.

 Sev.en Engineering is focused on renewal and technical optimization of the Chvaletice power plant.
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A “Natural” Choice for Energy Production

The push towards a greener path of energy production is becoming more and more prevalent across many countries within the European Union and around the world. Environmental regulations and reduced emission requirements, with many including deadlines for switching to a more sustainable and environmentally friendly fuel, are increasingly putting pressure on energy generation plants to make changes in their production processes.

 Many of these measures are aimed squarely at the greening of existing coal or oil boilers, which produce steam for energy production. The preferred replacement fuel of choice is natural gas, as its CO2 emissions during combustion are 50 % less than coal. This significantly reduces the cost of emission allowances.

 Two paths to green

 When making the change to natural gas, there are two methods that can be employed. The first is to completely replace the plant that uses coal or oil as fuel with a new natural gas-fired combined-cycle (NGCC) plant. This method requires a very large investment and takes an extended period of time to complete. In addition, the decommissioned plant would then be an asset that no longer provides value and could become a liability over time (remaining fuel on site, security, maintenance, etc.).

 The second method is to convert a current boiler, such as a coal-fired boiler, to natural gas. This method is far less expensive and not as time intensive as building, equipping and putting a completely new NGCC plant into operation. As many coal-fired boilers currently in use are older units with dated technology, which means they are less efficient and more costly to operate than modern natural gas boilers, this conversion could be a good option for many energy generation plants. It’s interesting to note that along with their efficiency, natural gas boilers also provide far better dynamic parameters - quicker start up speed together with more flexible output performance changes as well as a wider control range – keeping the same max power output but allowing for lower min. power output.

 Making the switch to natural gas

 If you’re considering conversion to natural gas, there are a few things to keep in mind. The first is what type of boiler you currently have in your plant. The most technologically and economically suitable boilers for conversion to natural gas are those that use oil and coal granulation as fuel.  But don’t worry if this is not your case. Grate and fluidized boilers can also be adapted for separate combustion of natural gas, although the transition is a little more involved and less economically advantageous.

 It’s also important to note that even when using cleaner burning natural gas as fuel, emissions of NOx and CO remain and will be an important area to address. The installation of low-emission burners is usually adequate to keep emissions of these gases low, although some cases could require additional primary measures, such as flue gas recirculation.

 While on the subject of emissions, a distinct advantage to mention is that the switch to natural gas does not require the installation of a desulfurization unit (FGD) unit. Dust (suspended particulate matter) filters, electrostatic precipitators or fabric filters (depending on each case) would also no longer play an important role in the new combustion process and can be removed without suffering any negative consequences.

 If one considers the operational and upkeeps costs associated with the removal of these two components, the switch to natural gas becomes a more financially viable option to go along with the positive effect on the environment.

 Simplified Operations

 When viewed from an operational point of view, the switch to natural gas greatly simplifies the technology needed for boilers and boiler rooms. An example would be the reduction of technology and processes associated with the supply and transport of coal for fuelling coal-fired boilers. With the absence of coal, the grinding, removal of slag and ash, and transport/disposal of combustion by-products are effectively eliminated.

 Adding up to a net positive effect

 If all of the previous points are taken together, conversion to a gas-fired boiler requires a very small investment compared to the greening of a boiler, which maintains the use of existing solid fuel. Advantages gained after conversion include reduced operational and maintenance costs, greater efficiency and quicker start-up speeds of the boiler from both a cold and warm state. With quicker start-ups of the boiler, it essentially becomes a "first choice" source of energy production that is capable of responding more quickly to dynamic changes in output.

 Where’s the gas?

 You may now be thinking conversion to natural gas is a good idea and you’re ready to make the change. But wait, an extremely important consideration, and make or break point in this conversion, is the availability of a natural gas pipeline near your factory with a capacity that can satisfy your needs.

 Remember that having a connection to a natural gas pipeline is not enough. It is also necessary to ensure that this pipeline will provide a consistent, reliable and cost efficient supply of natural gas for the long-term. Support of the pipeline by the national government and local infrastructure plays an important role in its on-going viability for the future.

 Choosing the right partner for conversion

 Before deciding on a partner for conversion to a natural gas boiler, you should ensure they are experienced engineers in the field of power generation. It is important for them to competently assess your existing boiler and propose the most effective and efficient measures for transitioning to natural gas or even other gas fuels, such as coke oven gas, blast furnace gas or a combination of several gas fuel options.

 For many power plants, turnkey solutions are preferred, as they make the transition process quick and painless. When making an enquiry about natural gas boiler conversion, ask the engineering company about their know-how and experience. It’s important for them to be highly experienced in carrying out complete engineering work that involves performing an initial feasibility study, processing thermal calculations of boilers, designing low-emission gas burners (type, number, power output and location) and processing complete detailed engineering of boiler reconstruction, which also includes complete gas connection piping and the gas reduction station.

 You should be confident that the company you choose is able to realize all technical parameters and provide a reliable, efficient and long-term solution.

 A cleaner and more profitable future

 Conversion to natural gas boilers is a trend that is becoming increasingly necessary, and viable, for energy generation plants across the world. In the end, it will not only have a positive impact on the environment, but also provide energy generation plants with higher efficiency, reduced operational costs and increased control range. It’s a definite win-win situation for all sides going forward.

 Daniel Valosek, Head of Boiler Design Department
Martin Byrtus, Head of Sales-Technical Department
Both authors of the article are Members of the Board of Directors at IVITAS, a.s.

Documentation and supervision of steel structure repair for Veolia

We prepared project documentation for our client Veolia Energie CR regarding the repair of a steel truss structure and crane track in the circulating station of their Trebovice power plant. The scope of our engineering work included a static calculation, detailed technical report, construction and workshop drawings of the unit, and other details that included material specifications.

 IVITAS engineers supervised all activities during repair of the steel structure to ensure successful completion of the project.
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Jumping for charity

On 22.8, we were happy to provide sponsorship support for the 6th Annual Equestrian Competition organized by the Akimarol Stable ( in the city of Stonava, Czech Republic.

 Riders from the Moravian-Silesian region, and one competitor from Spain, competed in a parkour course with heights from 50 cm (beginners) to 90cm (advanced). Proceeds from the event were donated to a local disabled child with cerebral palsy.

Advanced Documentation for Flue-gas Heat Exchangers

We have established on-going cooperation with the Czech scientific and technological company ForSTEEL for the delivery of heat exchanger documentation. The know-how we bring to this relationship typically includes static calculations of the steel structure and technology within the exchanger, optimization of the design and workshop documentation for the exchanger, covering of the steel structure, platforms, roof and transition components. We also carry out geodetic surveys of pipes at the client's premises.

 Our current project with ForSTEEL has IVITAS designers processing workshop documentation for a soon to be installed heat exchanger at the well-known Czech steel and ironworks plant Trinecke zelezarny. The heat exchanger utilizes blast furnace flue gases for heating combustion gas and air.

 IVITAS designers perform the calculation in SCIA Engineer on a spatial model using the finite element method. Analysis of the temperature field at the interface between the exchanger chambers is performed in ANSYS Workbench software. Autodesk Inventor and AutoCAD are used for the processing of the model and workshop documentation delivery.

 We look forward to working on many heat exchanger projects in the future with ForSTEEL and delivering accurate documentation clients can rely on.

Workshop documentation for Lafarge Zementwerke

In July, we submitted workshop documentation for a Cyclone Separator (Vortex Finder) to our client Lafarge Zementwerke, a member of the global Lafarge Holcim Group. Based in Vienna, Lafarge Zementwerke ( operates two cement plants in Mannersdorf am Leithagebirge and Retznei in Austria.

Detailed design documentation for two Sumitomo SHI FW Energia OY projects in Asia

We've recently delivered detailed design documentation for two Sumitomo SHI FW Energia OY projects ( - one in Taiwan and one in South Korea. Sumitomo SHI FW is a leading provider of CFB boilers and liquid air energy storage technology & services that are focused on the generation of clean, efficient & flexible power. The scope of our work for each project included detailed engineering documentation of pipelines and was carried out with the utilization of PDMS software.
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Piping design for GE Power in the UK

The General Electric Power Engineering Team has once again entrusted IVITAS to provide Steam piping design and documentation for a two-unit coal power plant project in the United Kingdom.

 “IVITAS provided valued technical knowledge and skilled engineering personnel for design work on the first unit of this GE Power project in the United Kingdom. Cooperation with them was very professional and the outcome fully met our expectations. We now look forward to IVITAS continuing work on the additional two units at the plant.”

 Lukas Baranek
Project Engineering Manager
Steam Power
GE Power

 Project Overview:

 As with the previous work carried out by IVITAS at the first unit of the UK plant, the brief from GE Power is to prepare detailed design documentation for the Steam piping for the second unit.

 The complete scope of work includes following detailed steam piping design documentation based on a 3D laser scan survey. Documentation includes calculations, a 3D model and isometric drawings of pipes, which includes hangers, supports and the steel structure.

 Working around COVID-19 travel restrictions with 3D Laser Scanning:

 For most projects, an on-site presence of IVITAS technical staff is needed in advance, and during, the design work phase to survey the space, take all measurements and hold conversations with the local team. For work carried out in 2019 on the first unit of the plant, IVITAS cooperated closely with the Czech company GEFOS ( for providing 3D laser scans of the relevant areas to gather the crucial data IVITAS required to start design work.

 For the follow-up project at the second unit, travel restrictions imposed by European countries due to the COVID-19 virus made it impossible to visit the UK plant to carry out the same laser scanning activities that were done at the first unit. To successfully move forward with the project, it was necessary for a 3D laser scan to be realized remotely via a local British company. After successfully negotiating this logistics hurdle, IVITAS has started on design work.

 This project serves as an example of how IVITAS is capable of working remotely on any project in the world by combining the high technical knowledge of its employees and utilization of today’s advanced technologies.
Jerzy Modrzejewski - IVITAS Business Development Director for Poland

IVITAS know-how and experience come to Poland

In March of 2020, IVITAS turned their attention to the Polish market with a new addition to the IVITAS team – Business Development Director for Poland Jerzy Modrzejewski. As an engineer with close to forty years of international experience in power plant technology, Modrzejewski is a welcome addition to the team that will assist in bringing their extensive know-how in engineering and design to companies on the Polish market.

 “We were searching for a highly experienced and respected professional in the power generation field to offer our services to the Polish market. Jerzy fit the profile perfectly. We’re looking forward to him representing IVITAS in Poland”, said IVITAS CEO and Chairman of the Board Pavel Dostal. Modrzejewski then added, “I’m confident the leading know-how and technical expertise IVITAS brings to Poland will benefit many companies that require their services. I see a very bright future ahead.”

 IVITAS sat down with Modrzejewski to talk about his background, education, professional experience, the current state of Polish energy generation and how he sees his role with IVITAS developing in the future.

 Can you tell us a little about yourself and your educational background?

 Sure. I was born in Bytom, Poland, which is a smaller city near Katowice. I was always interested in power generation technology and turbines, which led me to attend the Silesian Technical University in Gliwice. I gained a Masters of Science degree in Mechanics at the university, with a specialization in Power Engineering. I then continued with my postgraduate studies and received a Diploma in Rotating Machinery Diagnostics.

 In later years, I received a Diploma in Management Training for the British Industry, which was confirmed by the Confederation of British Industry. While in the U.K., I also studied how to switch from coal power plants to other forms of fuel, as well as diagnosis of power plant machinery.

 What about your experience in the power generation industry?

 Well, after graduating from the university, I secured my first job as a hydraulic systems designer in the Industrial Furnaces Department at HUTMASZPROJEKT – HAPEKO in Katowice. I then moved on to ZRE Katowice, where I was employed for about 10 years as a Diagnostic Engineer and Project Manager. I also served as Project Manager for power plant overhaul projects, as well as turbine installations and restoration projects. The projects I worked on were located across Europe, which included Poland, the Czech Republic, the Balkans and UAE.

 A big project I worked on for almost three years was the Prunerov Power Plant in the Czech Republic, which was a complete reconstruction project. I served as a Diagnostic Engineer, Project Manager and Vice-President. It was a very interesting and fulfilling time for me.

 I also cooperated with the Skoda plant in Pilsen, Czech Republic, where I was working with steam turbines.

 In 2004, I started work with Foster Wheeler OY Finland as Purchasing Manager for a project in Lomelina, Italy and a separate project that required delivery of a boiler for a Waste to Energy plant in Milan. In 2005, I transferred back home to Foster Wheeler Energia Polska as Subcontracting Manager for two big projects for two power plants – Project Lagisza for delivery of a 460 MW fluid bed boiler and Project Czestochowa for delivery of a 186 MW fluid bed boiler.

 Bilfinger Berger Industrial Services Germany was my last employer before I started my own consulting company in 2014. Bilfinger specializes in thermal insulation, refractory, cladding and roofing systems, as well as maintenance services in power generation and the power industry. I spent a very busy four years there as a Commercial Director and Key Client Director.

 When did you first come into contact with IVITAS and what led to your employment with them?

 I was first introduced to IVITAS three years ago during a project I was working on together with the Czech company Hutni Montaze, which recommended IVITAS as reliable and skilled professionals that can be trusted. Fast forward to March this year, at the start of the COVID-19 epidemic, when we contacted each other and agreed on starting cooperation. I guess you could say with all of the negative effects of the epidemic, I am able to take one positive out of it.

 Can you talk about your new role with IVITAS?

 In my new role as Business Development Director for Poland, I am contacting Polish companies that need an experienced partner for advanced pipeline design and delivery services, as well as assembly and design services. IVITAS is different from other, large companies, as they are very flexible and can react extremely quickly to client requests.

 I’m happy to say that right after starting work for IVITAS, I was able to secure two projects for them with the company SUMITOMO SHI FW ENERIA OY. The first is a pipeline design project for a power generation plant in Taiwan. The second is design of instrument air piping for a Boiler project in South Korea. In addition to these two confirmed contracts, I have other projects that are currently in negotiation.

 What do you think the future holds for IVITAS on the Polish market?

 The future is very bright indeed for IVITAS on the Polish market. One important upcoming development is that the EU is mandating a reduction in the use of coal for energy production. In fact, by 2040 the government is aiming for only 60% of energy to be produced by coal and 40% by other sources of fuel. As almost all energy in Poland is currently produced with coal, a huge transformation will be taking place in coal-based power plants across the country to the “other” forms of fuel, which I predict will be natural gas.

 Regarding natural gas, it’s interesting to note that Poland currently has a large supply of this fuel that’s already imported into the country. One source is a Russian pipeline with natural gas into Poland, and the other is a fleet of natural gas tankers that come into Polish ports from America. An additional important development will come to fruition in October 2022, when a natural gas pipeline from Norway to Poland will start operation.

 Considering these three sources of natural gas, companies in Poland will be in a good position to negotiate advantageous prices that will help drive the important changeover to natural gas.

 IVITAS is already well-equipped to offer their services to Polish companies during this transformation and assist them in making this important changeover.

 Do you have any hobbies? What do you do in your free time?

 One of my favourite activities is to go cycling with my wife after work, as well as hiking in the nearby mountains. Of course, I also enjoy going to the beach. I especially like traveling to the Balkan sea, which is a result of the extended time I had spent in the past working on projects in this region.

 I also enjoy sailing, but for now, only as a passenger in my son’s sailboat. But maybe I’ll get my Captain’s license in the future. We’ll see.

 Since 1996, IVITAS has specialized in designing technological systems for capital investments within the Czech Republic and abroad, with a strong specialization in power generation and technological installations. The high level of know-how and design expertise IVITAS brings to each and every project has gained them a long list of clients that include GE Power, ArcelorMittal, CEZ and others.
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Further design work for CEZ’s Tusimice II Power Plant

Our designers are currently busy with creating workshop documentation for a selection of pressure and non-pressure components in four boilers of 200 MWe units within the planned overhaul of the Tusimice II power plant (operated by CEZ).

 IVITAS engineers are not newcomers to this project. About 10 years ago, our team delivered basic and detailed designs, as well as workshop documentation, for all boilers, burners, mills, air ducts and coal ducts within the complex rehabilitation of this power plant to meet higher emission standards, improve efficiency and extend its lifespan. As a result of the work we carried out for the Tusimice II power plant, NOx emission standards were met with only the use of primary measures.
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