+ 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


Improvement of a simulator with a full range of simulation and a model of the control panel of Kozloduy NPP EAD Unit 6 with an up-to-date model of a modernized in-core monitoring system(IMS).

Improvement of a simulator with a full range of simulation and a model of the control panel of Kozloduy NPP EAD Unit 6 with an up-to-date model of a modernized in-core monitoring system(IMS).

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 Extension of the TRACE Model for NPP Gösgen for partial load states

Engineering Services and Support of QA: Enhancement of TRACE Model for NPP Gösgen Extension of the TRACE Model for NPP Gösgen for partial load states

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

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

Design, delivery and installation of a heat exchanger for a 10 MVA power transformer at HPP Rositsa

Design, delivery and installation of a heat exchanger for a 10 MVA power transformer at HPP Rositsa

Reconstruction of the existing hydroautomatics of a spherical valve DN 400, PN 30 at Mala Tsarkva HPP

Reconstruction of the existing hydroautomatics of a spherical valve DN 400, PN 30 at Mala Tsarkva HPP

Design, supply and installation of cooling water pipes for Power transformer (PT) PT-1 and PT-2 of Chaira PSHPP

Design, supply and installation of cooling water pipes for Power transformer (PT) PT-1 and PT-2 of Chaira PSHPP

Delivery and installation of insulators on 10,5 kV terminals of PT-1 and PT-2 of HPP Studen Kladenets

Delivery and installation of insulators on 10,5 kV terminals of PT-1 and PT-2 of HPP Studen Kladenets

Detailed design for the installation of a Peterson coil on the 20 kV side Power transformers (PT) 101 and PT 102 in the switchyard of Devin HPP

Detailed design for the installation of a Peterson coil on the 20 kV side Power transformers (PT) 101 and PT 102 in the switchyard of Devin HPP