About us
For over 65 years, the ORGREZ brand has stood for expertise, experience, quality, and innovation
We specialise in diagnostics, optimisation, and operational planning for large-scale, industrial, and municipal energy systems contributing to better energy management. We enhance the efficiency, service life, and sustainability of energy equipment, whether in energy production, distribution, or use.
We believe that traditional and modern energy sources can work in synergy to support sustainable growth in the energy industry. Through our expertise and data-driven insights, we integrate traditional and sustainable energy sources, equipment, and technologies to provide our clients with the most effective solutions for their energy needs.
Our strong presence in the energy sector, the proactive and professional approach of our staff, and our commitment to sustainable energy and innovation are key to fostering long-term partnerships with our clients and ensuring the company’s continued success.
ORGREZ Divisions
Division of Ambient Air and Fuel Quality Control
The Division of Ambient Air and Fuel Quality Control specialises in the supply, operation, and maintenance of monitoring systems designed to track ambient air pollution. The monitoring is certified by the Czech Ministry of the Environment and can be carried out through a laboratory accredited by the Czech Accreditation Institute (ČIA). Accredited data can be integrated into the national air quality information database, managed by the designated organization, the Czech Hydrometerological Institute (ČHMÚ), based in Prague.
The division also focuses on measuring outdoor workplace dust levels, including meteorological parameters. The results of the measurements and their evaluation can be used to identify potential sources of dust in the area and to design targeted dust reduction measures.
The division also certifies automatic fuel samplers, evaluates the collected samples in an accredited laboratory, and performs comprehensive quality control of fuel deliveries. It collects and assesses key information about fuel quality, solid combustion residues, and how these values change, which can significantly impact the data reported in greenhouse gas emission reports.
The division operates its own Testing Laboratory in Most (Lab No. 1179), accredited by the Czech Accreditation Institute (ČIA) according to ČSN EN ISO/IEC 17025 for measuring ambient and workplace air quality (outdoor environments), as well as for fuel sampling and subsequent analysis.
The division is also a provider of proficiency testing (Lab No. 7014), accredited by the Czech Accreditation Institute (ČIA) in accordance with ČSN EN ISO/IEC 17043:2010, and offers proficiency testing for the physical and chemical properties of solid fuels.
ORGREZ, a.s.
Division of Ambient Air and Fuel Quality Control
Budovatelů 2531
434 01 Most
Division of Transformer Maintenance
The Division of Transformer Maintenance specialises in consulting and providing transformer maintenance through the filtration and regeneration of electrical insulating fluids. The oil regeneration process restores electrical insulating fluid to its original technical quality, allowing for effective recycling.
ORGREZ, a.s.
Division of Transformer Maintenance
Hudcova 321/76
612 00 Brno - Medlánky
Division of Electrical Systems
The Division of Electrical Systems focuses on the delivery of power systems, certification and guarantee testing, diagnostics, and operational optimisation, with an emphasis on enhancing the efficiency, safety, and reliability of electrical power equipment. It primarily carries out repairs and refurbishments of power, special, and test transformers, as well as inspections and repairs of tap changers for power transformers.
The division also provides ASRU secondary voltage and reactive power regulation systems, as well as power balancing service terminals. For these systems, it also prepares grid connection studies, performs electricity quality measurements, and verifies the functionality of system stabilisers.
ORGREZ, a.s.
Division of Electrical Systems
Třanovského 622/11
163 00 Praha 6 - Řepy
Division of Air Protection Technology
The Division of Air Protection Technology supplies systems for the continuous monitoring and evaluation of emissions from power plants, heating plants, and other pollution sources. It also repairs and services these systems, offering guidance and advice on continuous emission monitoring.
It also specialises in accredited measurements of emissions from pollution sources. The division operates under a certificate issued by the Ministry of the Environment, authorising it to measure emissions, and an accreditation certificate from the Czech Accreditation Institute (ČIA) for measuring gaseous and solid pollutant emissions, as well as auxiliary HVAC parameters.
ORGREZ, a.s.
Division of Air Protection Technology
Počáteční 1879/19
710 00 Ostrava - Slezská Ostrava
Division of Thermal Technology and Power Solutions
The Division of Thermal Technology and Power Solutions specialises in diagnostics, optimisation, and developing structural modification designs for technological systems and entire power units in heating plants and power plants. It carries out specialised measurements in energy operations, with a particular focus on warranty and verification tests.
It also focuses on the preparation, implementation, testing, and certification of systems for providing power balancing services and their remote operation.
ORGREZ, a.s.
Division of Thermal Technology and Power Solutions
Třanovského 622/11
163 00 Praha 6 - Řepy
Prague office:
Zdenek Adámek
Tel: 724 947 616
Brno office:
David Praks
Tel: 541 613 303
Division of Environmental Systems
The Division of Environmental Systems operates the EisOrgNet system and provides our customers with reporting related to greenhouse gases and other emissions to governmental authorities.
The division also conducts analysis of solid and liquid waste, as well as soil, certifying these materials for use in construction.
The division also designs, supplies, and commissions secondary SNCR and SCR systems for NOx removal, as well as systems for reducing CO emissions from flue gases and waste gases.
ORGREZ, a.s.
Division of Environmental Systems
Počáteční 1879/19
710 00 Ostrava - Slezská Ostrava
Division of Electrical Engineering Laboratories
The Division of Electrical Engineering Laboratories specialises in the diagnostics of electrical insulation systems. It provides comprehensive services for the maintenance of high-voltage (HV) and extra-high-voltage (EHV) equipment used in the generation, distribution, and consumption of electric power, as well as testing and diagnostic measurements of rotating and non-rotating HV/EHV machines.
The division operates a laboratory that conducts sampling and physical and chemical testing of electrical insulating fluids, including chromatographic analysis of decomposition gases dissolved in insulating oil (DGA).
It also provides expert opinions and prepares customised operational guidelines. The division’s staff participate in standards development, legislative drafting, and research and development.
The division includes the E01 Testing Laboratory, accredited by the Czech Accreditation Institute (ČIA) under the ČSN EN ISO/IEC 17025 standard since 2005. The division is a founding member of the High Voltage Testing Laboratories Association (AZVN), where it is registered as Testing Facility E01.
ORGREZ, a.s.
Division of Electrical Engineering Laboratories
Vítkova 189/17
186 00 Praha - Karlín
Lubomir Markus
Head of Department of Diagnostics and VN Testing
Tel: +420 724 271 075
E-mail: lubomir.markus@orgrez.cz
Lenka Kosanova
Head of the Oil Testing Laboratory
Tel: +420 724 214 102
E-mail: lenka.kosanova@orgrez.cz