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
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- All Client
- Kozloduy NPP
- Goesgen NPP - Switzerland
- SAI Advanced Power Solutions - USA
- Svilocel EAD
- Bulgarian Nuclear Regulatory Agency
- National Electric Company
- Toplofikacia Sofia EAD
- Nuclear Power Plants Authority Egypt
- VIR-90
- FRIZTECH METAL LTD
- MSV ENERGY
- JN - Energy Progress
- Goezgen NPP
- Voden Svyat - Bankya AD
- KMS EAD

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

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

Delivery of a Synchronous Generator at the Kozloduy NPP site

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

Expertise of selected reports from stage 2 of the project for extension of the operation period of Unit 6 of Kozloduy NPP, related to justification of the possibility for safe operation of the reactor vessel and part of the main building structures

Modernization of turbine unit TG3 with new back-pressure turbine at Sofia East TPP

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

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

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

Energy efficiency measures of the Administrative building “Coastal pumping station”- 20 KV

Reconstruction of the water supply and sewerage system (WS) in the Central Alarm Station (CAS)
