+ 359 2 4748 800 info@gcr.bg

Analyses, management and design

Solution for the energy industry

years of history

long-term experts with deep expertise

completed projects

ongoing projects

GCR Sectors


Nuclear Energy


GCR was founded as an engineering service provider to the nuclear energy industry back in 1995. Today, the core competencies of our team remain focused on the sector. We have experience and expertise throughout the lifecycle of a nuclear power plant (NPP).

Conventional energy


Over the years GCR has expanded into conventional and renewable energy. Our team has experience and expertise in supporting thermal, hydroelectric and renewable power plants.

energy solutions
for busines


For industrial-scale consumers of electricity, heat, and/or cooling, we offer modern solutions for optimizing their energy balance.

GCR Services


Safety management

Turnkey construction

Design and Engineering

Consulting services

GCR Team


We rely on a core team of proven engineering professionals with significant experience, deep expertise and a breadth of knowledge across adjacent disciplines. Our team has extensive domain knowledge across the spectrum of power generation technologies – including nuclear, conventional (thermal), hydroelectric, and renewable. Functionally, our experts are specialized in the core disciplines of mechanical and process engineering, civil and structural engineering, electrical and instrumentation and control engineering. Our team is experienced in applying state-of-the-art specialized methods and tools (software) for finite element analysis, thermal-hydraulic analysis and probabilistic safety assessment as needed in our projects. Outside of our core team, we maintain a wide network of specialists from academia, from government and other private institutions. We tap on our network on an as-needed basis to supplement our project teams and provide the best possible expertise to our clients for each particular project.

GCR Projects


Engineering Services and Support of QA: Application and enhancement of TRACE model

Engineering Services and Support of QA: Application and enhancement of TRACE model

Engineering Services and Support of QA: Enhancement of TRACE Model for NPP Gösgen.

Engineering Services and Support of QA: Enhancement of TRACE Model for NPP Gösgen.

New information center

New information center

Advance Power Solution (SAI) – Collaborate on SAI projects using the EPLAN platform

Advance Power Solution (SAI) – Collaborate on SAI projects using the EPLAN platform

Kozloduy NPP – Delivery of a new Diesel generator for SFSF. Change in the scheme of emergency power supply of SFSF

Kozloduy NPP – Delivery of a new Diesel generator for SFSF. Change in the scheme of emergency power supply of SFSF

Kozloduy NPP – Construction of the system for measuring the volumetric concentration of gases in the hermozone of Units 5 and 6

Kozloduy NPP – Construction of the system for measuring the volumetric concentration of gases in the hermozone of Units 5 and 6

Kozloduy NPP – Information system for operational activities management of Kozloduy NPP (IS OAM)

Kozloduy NPP – Information system for operational activities management of Kozloduy NPP (IS OAM)

Kozloduy NPP – Design, delivery and installation of a 5EA50 rechargeable battery

Kozloduy NPP – Design, delivery and installation of a 5EA50 rechargeable battery

Delivery of a Synchronous Generator at the Kozloduy NPP site

Delivery of a Synchronous Generator at the Kozloduy NPP site

Assessment of the technical condition and residual life of electrical transformers 114T and 115T at Kozloduy NPP

Assessment of the technical condition and residual life of electrical transformers 114T and 115T at Kozloduy NPP

Updating the models of the electrical system and the generator of the simulator with a model of the MCR unit 6 of Kozloduy NPP

Updating the models of the electrical system and the generator of the simulator with a model of the MCR unit 6 of Kozloduy NPP

Out-of-warranty service of a simulator with full range of simulation and model of the main control room(MCR) of Kozloduy NPP block 6

Out-of-warranty service of a simulator with full range of simulation and model of the main control room(MCR) of Kozloduy NPP block 6