Our advanced packaged solutions and bespoke engineering services in the complex and highly specialized domain of nuclear technology—delivered by a team of seasoned experts—have significantly contributed to scalability, execution readiness, and operational excellence across multiple Indian Nuclear Power Plants and their ancillary facilities.
Engineering, Procurement & Construction (EPC)
Core Energy has a proven track record in executing complex and niche nuclear projects on a complete EPC basis. We have successfully secured prestigious contracts through highly competitive global bidding, demonstrating our technical excellence and commercial competitiveness.
Fully equipped to deliver turnkey solutions, we integrate comprehensive engineering, procurement, and construction services under one roof. Our in-house capabilities ensure seamless project execution while maintaining strict adherence to global nuclear standards such as ASME, ISO, and NUREG.
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Nuclear Island
- Recirculation Piping (PHT & Other Class-1)
- Systems for Fuel Handling, Heavy Water, Light Water, Moderator
- Containment Ventilation & HVAC
- Installation & Erection of Primary Components
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Turbine Island
- Main Steam System
- Condensing System
- Condensate System
- Feed Water System
- Turbine Drain System
- Moisture Separator & Reheater System
Balance of Plant (BOP) Utility
- Compressed Air Plant
- Chilled Water Plant
- Nitrogen & Gas Plants
- Desalination Plant
- Sea Water Pumping
- Material Handling
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Nuclear Waste Management
- Decontamination
- Near-Surface Nuclear Waste Disposal
- Radioactive Waste Incineration Plant
- Solid Waste Compaction System
Spent Fuel Management
- Spent Fuel Storage Facility (AFR Plant)
- Spent Fuel Transportation Casks
- Spent Fuel Storage Racks
- Pool Bridge Fuel Handling Cran
Miscellaneous Systems
- Emergency Diesel Generators
- On-site Emergency Safety Centres
- Post-Accident Hydrogen Management
- C&I and Electrical Systems
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Decommissioning & Refurbishment
- Radiation Survey & Monitoring
- Dismantling of Radioactive Primary Circuit Components
- Refurbishment & Replacement
Innovative Nuclear EPC
- Small Modular Reactors (SMR)
- Micro Modular Reactors (MMR)
- Floating Nuclear Power Plants (FNPP)
- Radioactive Heat Source (RHS / RITEG)
Engineered Packaged Systems (EPS)
With a deep-rooted understanding of the nuclear industry and its unique challenges, Core delivers end-to-end engineered packaged solutions through a highly skilled execution team under single-point responsibility. Our strength lies in combining decades of multidisciplinary expertise with a strong focus on indigenization, enabling us to offer efficient, localized, and fully compliant engineered packaged solutions.
Backed by ISO 19443 certification, we ensure quality and safety aligned with nuclear sector requirements. From design and development to procurement and construction, we ensure seamless integration and adherence to the most stringent global nuclear standards.
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Main Steam Isolation Valve (MSIV)
- Engineered for rapid shut-off of main steam lines in nuclear reactors
- Designed to operate under high-pressure, high-temperature conditions
- Compliant with nuclear safety standards and seismic qualifications
- Enables safe isolation during emergencies, maintenance, or refueling operations
- Integrated with plant automation and control systems for reliable performance
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Main Steam Safety Valve (MSSV)
- Provides overpressure protection for the steam circuit in nuclear power plants
- Automatically releases excess steam to maintain safe pressure levels
- Designed for high reliability, thermal stability, and rapid actuation
- Compliant with ASME Section III and other nuclear regulatory codes
- Engineered for long-term performance under extreme operating conditions
Radiation Resistant Camera Systems
- Designed for continuous visual monitoring in high-radiation nuclear environments
- Equipped with radiation-hardened optics and electronics for extended operational life
- Enables remote inspection of inaccessible or hazardous areas
- Integrated with control room displays for real-time surveillance and safety assurance
- Ideal for reactor monitoring, fuel handling, and decommissioning activities
HEPA Filtration Package
- High-Efficiency Particulate Air (HEPA) filters designed for nuclear-grade air purification
- Effectively captures radioactive aerosols, dust, and fine particulates
- Constructed with fire-retardant, corrosion-resistant materials suitable for harsh environments
- Engineered for use in ventilation and containment systems across nuclear facilities
- Compliant with nuclear safety and environmental control norms
Heavy Water Recovery Dryer
- Designed for efficient removal of moisture from process streams containing heavy water (D₂O)
- Supports recovery and reuse of heavy water in nuclear reactor operations
- Engineered with materials compatible with deuterium to ensure system integrity
- Integrated with automated controls for precise temperature and humidity regulation
- Enhances resource efficiency and minimizes heavy water loss during processing
Air Handling Units & Fan Cooling Units
- Engineered for precise air distribution and thermal control in nuclear facility environments
- AHUs equipped with multi-stage filtration, heating, cooling, and humidity control components
- FCUs designed for efficient localized cooling in equipment rooms and control areas
- Fabricated with radiation-resistant and corrosion-proof materials for enhanced durability
- Integrated with building management and safety systems for reliable and automated operation
Air Washer Plant
- Designed for conditioning and purification of air in controlled nuclear environments
- Utilizes high-efficiency scrubbing and filtration to remove dust, aerosols, and contaminants
- Maintains required temperature and humidity levels for sensitive equipment and personnel zones
- Constructed with corrosion-resistant materials for long-term performance
- Integrated with HVAC systems to ensure clean and regulated airflow in nuclear facilities
Operation & Maintenance
With 25+ years of experience and 10+ active sites, Core Energy Systems Limited delivers end-to-end O&M solutions across Nuclear, Defence & Aerospace, Renewable Energy, Oil & Gas, and sectors including Steel, Process Industries, Mining, Thermal Power, and Railways.
Our services cover plant operations, preventive and predictive maintenance, asset integrity, and lifecycle optimization, ensuring superior safety, reliability, and performance.
We leverage digital tools, condition monitoring, and data-driven maintenance to maximize uptime, efficiency, and asset life, delivering scalable, compliant, and sustainable O&M solutions.
- Operation and maintenance of systems in radiation-controlled areas (boilers, chillers, ventilation units, air compressors, pumps, and valves)
- Compressed air plant management for nuclear power plants
- Operation and maintenance of material handling equipment (cranes, electric hoists, and manual hoists)
- Radiological laundry processing for decontamination of protective clothing
- Nozzle extraction, cleaning, and reinstatement at NDCT/IDCT structures
- O&M works for the safe operation of waste management facilities
- Specialised staffing for nuclear waste management facilities
- Project management services
- Manpower outsourcing for miscellaneous jobs
- Data handling and data entry personnel
- Outsourcing of Manpower for Centralised Tender Cell operations and a nuclear training centre
- Planning and supervision for civil construction works
- Planning and supervision for mechanical works
- Electrical support for pre-commissioning, commissioning, and operational activities across plant equipment and systems.
- Store and warehouse management, including preservation of plant materials and housekeeping
- Assistance in operating DM plants, filtration units, and chlorination systems
- Operations of reprocessing facilities (radiation surveillance, analytical tasks, decontamination work)
- Operations of fuel handling systems
- Material shifting, equipment movement, and sump dewatering activities
- Operation of plant utility equipment and ancillary systems
Electrical Plant Operations
Mechanical Plant Operations
- Electrical auxiliary maintenance of power transformers, HT/LT motors, UPS systems.
- Critical and non-critical electrical maintenance activities.
- AMC for seawater pumps and motors for process water, fire water, TG, and feedwater systems
- Maintenance of ventilation systems and dryer plants
- Upkeep of TWS, coarse screens, and stop-log gates
- Overhauling and maintenance of pumps, blowers, chillers, compressors, valves, fans, and other equipment
- Material handling support for mechanical systems
- Maintenance of primary and auxiliary mechanical equipment
- Mechanical maintenance & refurbishment of static, semi-rotary, and rotary equipment
- Maintenance support for major equipment, including turbines, generators, compressors, valves, and chillers
- Instrumentation-related maintenance activities
- Mechanical maintenance of radwaste systems
Electrical Maintenance
Mechanical Maintenance
Technology Absorption
At Core Energy Systems Limited, technology absorption is more than adoption—it's about transformation. Since inception, Core has remained at the forefront of addressing complex engineering challenges in the nuclear power sector by designing innovative, client-specific solutions. We actively collaborate with global technology leaders and seamlessly integrate advanced technologies into local project requirements.
Our strength lies in our ability to not just access, but absorb and adapt technologies—ensuring they deliver value within the regulatory, operational, and environmental contexts of nuclear projects.
Why collaborate with Core:
- A culture rooted in research, engineering excellence, and continuous innovation
- Strategic global technology partnerships and collaborations
- Proven capability to localize and customize technologies for project-specific needs
- Expertise in identifying, evaluating, and managing local technology partners
- End-to-end support in planning, structuring, and delivering integrated solutions