Societatea Nationala Nuclearelectrica

Societatea Nationala Nuclearelectrica

Through its subsidiary, Canadian Nuclear Partners, Laurentis is supporting the refurbishment of Societatea Nationala Nuclearelectrica’s Cernavoda nuclear station in Romania and helping with the commissioning of a tritium removal facility currently under construction.

Supporting refurbishment and detritiation

Societatea Nationala Nuclearelectrica (SNN) is a state-owned power utility, reporting to Romania’s Ministry of Energy. It operates Cernavoda Nuclear Power Plant, a two-unit CANDU 6 station at Cernavoda. The Cernavoda station generates about 18 per cent of Romania’s electricity. Cernavoda Unit 1 (C1) came into service in 1996, while Cernavoda Unit 2 (C2) came online in 2007.

Laurentis subsidiary Canadian Nuclear Partners is supporting SNN through planned refurbishment activities. During a refurbishment outage, some systems and components at Cernavoda that are not subject to refurbishment activities will still require careful planning to avoid degradation and to maintain them in a safe state for the duration of the plant’s stoppage. Laurentis has developed a program to protect the integrity of SNN’s Unit 1 reactor while it is drained of water during refurbishment. This includes a subcontract to Framatome, in Germany, to use its proprietary Film Forming Amine (FFA) technology. FAA has been deployed in the Darlington Refurbishment to conserve and protect water-steam systems while dry, reducing or preventing the need for maintenance.

Work by Laurentis on the Cernavoda refurbishment will occur in two stages. Phase one, system analysis and design engineering, occurred over 21 months in 2021 and 2022. Phase two, implementation, is scheduled to move forward in 2026-27, following regulatory approval for SNN’s refurbishment.

The contract also includes a Darlington Training and Mentoring Program for Cernavoda personnel who will be involved in the implementation of the C1 refurbishment. This program will establish clear and well understood standards for the owner’s role in ensuring safe, quality, on-time and on-budget delivery of the refurbishment program, it will provide a solid foundation for the scope of work and methods that OPG uses to manage a refurbishment project and it will enhance the ability of project personnel to identify, analyze, and solve management problems encountered over the course of the project. Three cohorts of Cernavoda staff are participating in 10-week sessions at the Darlington training centre.

Furthermore, Laurentis is leveraging its significant experience in the commissioning and operation of its own detritiation facilities at Darlington to help SNN build a detritiation facility at Cernavoda. As a subcontractor to Kinetrics, which is acting as Owner’s Engineer for the construction of the project, Laurentis will make an important contribution in the key phase of commissioning of the tritium removal facility.

Clean-energy materials sorting and recycling

Clean-energy materials sorting and recycling

CMSR: less is more

At the Hamilton Clean-Energy Materials Sorting and Recycling Initiative, Laurentis Energy Partners and McMaster University are working together to advance research and development in nuclear-energy innovations that reduce waste and support environmental solutions across the nuclear industry.

Hamilton Clean-Energy Materials Sorting and Recycling Initiative

The Hamilton Clean-Energy Materials Sorting and Recycling Initiative (CMSR) is a joint research project between Laurentis and McMaster University in Hamilton, Ontario, that is making important strides in research and development that unlocks environmental solutions for nuclear clients. Technicians at the CMSR are focused on new techniques to process low-level nuclear byproducts. These materials include used worker garments, shoe covers and gloves, mops, and rags used in cleaning, small tools, and other industrial materials used in the nuclear industry. The technicians are discovering new methods and technologies, such as automated sorting and optimized radiation detection methods, to further sort and help divert more nuclear byproducts to re-use and recycling.

At the CMSR, technicians perform nuclear byproduct sorting and segregation research and operations, assessing materials gathered over the last 50-plus years that are currently destined for long-term storage. These materials are identified as items that can be sorted into reductive waste streams such as compatible, metal, incinerable, washables, and non-processible. This research-based initiative supports a reduction in the stored volume of Ontario's nuclear reactor fleets' byproducts, which directly impacts the amount of material needed to be stored in accordance with CNSC regulations. The result is a reduced amount of capital required to store the materials long term. To date, there are more than 150,000 data points, with each data point representing radiological activity measurements and physical characteristics of nuclear byproducts, amongst other activity-related surveys, providing the largest data set of nuclear byproducts in North America.


Where innovation happens

Real world applications of the CMSR

Some of the innovations discovered at the CMSR are already being put to use at Laurentis’s new Western Clean-Energy Sorting and Recycling facility, where they are resulting in reductions in the volume of nuclear waste requiring disposal. Volume reductions lessen the need for new storage buildings, cut the cost of decommissioning stations, and reduce the amount of space needed in interim storage and eventual permanent disposal facilities.

The CMSR operates under a Nuclear Substance Radiation Devices licence from the Canadian Nuclear Safety Commission which allows the possession, use, transfer, and storage of nuclear substances.

Maintenance and inspection projects

Maintenance and inspection projects

As experienced nuclear industry leaders, Laurentis has completed various maintenance and inspections-related projects to keep nuclear plants running safely and at optimal efficiency for the entirety of their operating life.

Spacer Location and Repositioning campaigns

Spacer Location and Repositioning campaigns are a Laurentis area of expertise, with every aspect covered and multiple projects completed successfully. 

The importance of SLAR campaigns

Laurentis has successfully completed numerous Spacer Location and Repositioning (SLAR) campaigns. Outside of the on-channel inspection, Laurentis also maintains, calibrates, tests, and commissions all SLAR equipment to make sure it is ready to use.

SLAR campaign equipment includes the SLAR and Modal Detection and Reposition (MODAR), which detects and repositions garter springs in a wet, de-fueled channel. This ensures adequate separation between calandria and pressure tubes.

As nuclear plants around the world continue to age, SLAR campaigns are a vital expertise in keeping these reliable, low-carbon energy sources operating as safely and efficiently as possible.

TDS Services

Nuclear reactor maintenance

Laurentis’s advanced tooling and expert crews are trusted to perform critical and routine maintenance on operating nuclear reactors.

Darlington Aerial View

Aerial inspections

Aerial inspections with remotely piloted aircraft systems operated by Compliant Operator Special Flight Operations Certificate crews as designated by Transport Canada.

CIGAR inspections

Laurentis’s Channel Inspection and Gauging Apparatus for Reactors offers a fully automated, remotely operated inspection system designed to perform multi-channel, multi-task inspection of CANDU reactor fuel channels.

Balance of plant inspections

Balance of plant inspections and services to keep your entire operation meeting the highest safety standards and running at peak performance.

Darlington workers

Inspection of nuclear fuel channels

Volumetric and dimensional inspections of nuclear fuel channels include a review of the fuel channel lifecycle management plans and detailed recommendations to maximum optimization. This inspection includes engineering, radiation protection, and operations support.

Keeping reactors efficient and online

Other maintenance and inspection services and capabilities that Laurentis specializes in and projects delivered, including in partnership with OPG’s Advanced Inspections and Maintenance team (AIM):

  • Scanning Tool for Elongation Measurements
  • Fret Replica Inspection Laser System analysis
  • Training and expertise/execution for Balance of Rotating Equipment
  • Training, expertise/execution and tooling for Horizontal Flux Detector install and removal
  • Single fuel channel replacement (SFCR) training and expertise/execution for mock-up and flask rentals, including active component transfer system (ACTS)
  • Data acquisition power rundown monitoring equipment, expertise, training, and equipment
  • Assessments (order completion, whether it be backlog, outage, preventative maintenance)
  • Radiation protection field team services
  • Vacuum building outages support using Remotely Piloted Aircraft System (RPAS) or drones
  • RPAS and drones for renewable generation (hydro, dam inspections, head gate integrity)
  • Heavy Water Transfer Facility at NB Power, reducing rates of coolant and moderator water (tritium removal)
  • Steam generator support and expertise
  • Used fuel container programs for Small Modular Reactors (SMRs)
  • Monitoring, diagnostics, and preventative maintenance

Small modular reactor projects

Small modular reactor projects

Bringing SMR projects to life

As demand for safe, clean, reliable power grows, Small Modular Reactors (SMRs) are set to play a big role in the future of nuclear—and the energy industry at large. With its extensive expertise in nuclear operations and applications—and a key role in delivering Ontario Power Generation’s Darlington New Nuclear Project—Laurentis is helping to lead the charge. This positions the company at the forefront of one of the most promising, versatile, and adaptable low-carbon energy technologies of tomorrow.

SMR clients and projects

Laurentis provides SMR services to clients from across Canada and around the world, including Canadian nuclear utilities, Canadian non-nuclear utilities, European utilities, European non-nuclear utilities, and Canadian government departments. Some of its clients and partners include:

Darlington aerial

Darlington New Nuclear Project

Working with Ontario Power Generation and GE Hitachi Nuclear Energy to deploy a BWRX-300 SMR at the Darlington site in Clarington, Ontario.

bwxt 300 SMR


Laurentis is collaborating with SaskPower to advance Western Canada’s first SMR project in the province of Saskatchewan.

LEP Hatch Tractebel Signing

Tractebel and Hatch

Laurentis is joining forces with Tractebel, a global engineering and consulting company, and Hatch, a global management, engineering, and consulting firm, to develop a one-stop-shop to support industrial SMR clients worldwide.

Laurentis and Fermi Partner

Fermi Energia

Laurentis is supporting the development of SMRs for Fermi Energia, an Estonian energy company seeking to ensure a stable, clean, and reliable domestic supply of electricity.

Synthos Green Energy

Laurentis is supporting the development of GE Hitachi BWRX-300 SMRs in Poland for Synthos Green Energy, a Polish energy company.

End-to-end SMR services

With proven and trusted expertise with all stages of nuclear energy development, Laurentis helps lower risk, reduce lead times, and increase confidence that an SMR project will succeed. This is an exciting new technology, but it is in its early stages of commercialization. It requires people with the technical expertise to deliver quality work, on time and on budget. Explore the ways in which Laurentis provides industrial and nuclear clients with start to finish SMR services and supports that build public confidence and trust.

  • Corporate structure
  • Quality management
  • Site selection support and oversight
  • Regulatory support
  • Stakeholder and public engagement
  • Safety assessments
  • Contracting and resourcing strategies
  • Cost and scheduling
  • Supply chain strategies
  • Project roadmap and governance
  • Cost estimating
  • Technology selection
  • Project management
  • Construction planning oversight
  • Commissioning support
  • Licensing
  • Engineering, procurement and construction oversight
  • Operations training and procedures
  • Inspection and maintenance services
  • Asset lifecycle management
  • As Low As Reasonably Achievable (ALARA)
  • Vendor qualification
  • Contract management
  • Owner’s Engineer
  • Public relations and stakeholder management
  • Radiation protection and expertise
  • Nuclear waste management solutions
  • Fuel lifecycle

Interested in learning more about Laurentis’s SMR services?

If you have any questions about Laurentis's SMR service offerings or want to know more about how Laurentis can help your company succeed, please get in touch with us.

Target Delivery System

Target Delivery System

The world needs more medical and radioisotopes—and Laurentis answered the call. Laurentis’s innovations resulted in the world’s first isotope production from a working commercial nuclear power reactor.

Inside a groundbreaking technology

Over a period of several years, Laurentis and BWXT Medical Ltd. worked to develop a proprietary piece of technology that would enable Laurentis to drastically increase both the scale and diversity of its isotope production. The result is the Target Delivery System (TDS).

The TDS is an isotope irradiation system that was specifically engineered to take advantage of the unique design of CANDU reactors. The result is a novel and highly applicable system of isotope production that allows isotopes to be produced and harvested while the nuclear reactor remains online. This means that there is no disruption to the generation of clean energy.

The TDS also represents a significant opportunity for nuclear science to contribute to the well-being of people around the world by offering innovative and alternative approaches to cancer diagnosis and treatment.

Laurentis’s first TDS was installed at OPG’s Darlington nuclear station in Unit 2. It offers a high-volume capacity for irradiating isotopes, as well as high neutron absorption. This results in a higher production yield from the raw material that enters the reactor. Laurentis is currently using the TDS to produce Mo-99 and has plans to use it to produce Y-90. Learn more about these isotopes here.

The TDS has positioned Laurentis as a world leader in nuclear medical isotope production, with the first ever isotope harvest from a working commercial power reactor, and Laurentis is just getting started. In the coming years, Laurentis will continue to expand its product portfolio and capacity to meet growing global demand for life-saving medical isotopes.

Innovation in action

Laurentis’s Target Delivery System

A deeper dive - The TDS in action

The TDS irradiation process begins with a stable isotope. For Laurentis’s Mo-99 production, the target isotope is Mo-98. The target isotope is packed in capsule form with eight capsules housed in a zircaloy magazine. The magazine is lowered into the core of Darlington’s Unit 2 power reactor. High flux neutrons with tremendous thermal power then bombard the target, converting it into Mo-99. After irradiation, the target is lifted out of the reactor, packaged in flasks, and prepared for transportation. The TDS system is fully automated: it lowers new magazines into the core, lifts them out after irradiation, and packages irradiated isotopes into licensed containers for transport.

The system uses four elevators and is controlled using a hybrid of elevators and pneumatics.

Total capacity of the TDS at Darlington Unit 2 can satisfy a significant portion of global demand for Mo-99.

Laurentis contributes to University of New Brunswick nuclear energy research program

February 15, 2024
6 min read

Laurentis contributes to University of New Brunswick nuclear energy research program

Jason Van Wart, President and CEO of Laurentis, right, joined Josh Leon, Dean of Engineering at the University of New Brunswick to present a donation to UNB's Centre for Nuclear Energy Research.
Jason Van Wart, President and CEO of Laurentis, right, joined Josh Leon, Dean of Engineering at the University of New Brunswick to present a donation to UNB's Centre for Nuclear Energy Research.

Laurentis Energy Partners is pleased to announce a donation to the University of New Brunswick’s (UNB) Centre for Nuclear Energy Research (CNER), reaffirming the company’s commitment to advancing nuclear technology and enabling a clean-energy future through research and innovation initiatives.

“Laurentis is proud to support the state-of-the-art solutions developed by CNER for the nuclear industry,” said Jason Van Wart, President and CEO of Laurentis. “As a company, we prioritize supporting the next generation of talented engineers and nuclear professionals whose advancements in research and development are building a better world.”

“I’d like to thank Laurentis for its generous contribution to CNER, which will support our students and their projects,” said Dr. William Cook, Director of the CNER. “These young engineers in training are engaged in important work related to advancing Small Modular Reactors and improving reactor inspections and maintenance, which is leading to innovative and impactful solutions for the global industry.”

An innovator and leader in the clean-energy industry, Laurentis has an office, contracts, and customers in New Brunswick, as well as Ontario, Saskatchewan and Romania.

In addition to its contribution to CNER, on Feb. 20, Laurentis will hold a co-op placement information and recruitment session for third- and fourth-year UNB students studying electrical, chemical, mechanical and civil engineering. Students who successfully obtain placements will work out of Laurentis’s Saint John, New Brunswick, office through the summer term.

From powerhouse to legacy: Laurentis partners in the successful decommissioning of a Class II cyclotron at the McMaster University Medical Centre

January 18, 2024
7 min read

From powerhouse to legacy: Laurentis partners in the successful decommissioning of a Class II cyclotron at the McMaster University Medical Centre

From left, Jennifer Petre, Radiation Protection Technician II; Garrett Treadwell, First Line Manager, Field Services; and Hiren Patel, Radiation Protection Technician II, show the radiation monitoring instruments used to perform radiation surveys to support the decommissioning of McMaster's cyclotron.

In a time where environmental sustainability is a paramount concern, Laurentis continues to solidify its position as a leader in nuclear science and safety by partnering in the decommissioning of a Class II RDS-112 Cyclotron located at the McMaster University Medical Centre (MUMC).

The Class II cyclotron, housed in a research facility at MUMC in Hamilton, Ontario and owned by the Centre for Probe Development and Commercialization (CPDC), had served as a cornerstone of scientific exploration and innovation for decades. It produced short-lived positron-emitting isotopes such as Fluorine-18, which is used for diagnostic imaging and research purposes, like the development of novel molecular imaging agents.

Having reached the end of its operational lifespan, the cyclotron was taken out of service in 2018. A technical assessment performed by McMaster Health Physics in 2019 determined that due to the decay time of the shorter-lived radioisotopes that were present, much of the decommissioning waste could be confirmed to be non-radiological.

"The decision to decommission the RDS-112 cyclotron was made after a newer and more reliable cyclotron was commissioned at the McMaster University Cyclotron Facility," said Josip Zic, Health Physics Director at McMaster University. "The dismantlement and licensed decommissioning of the Class II cyclotron is the first of its kind in Canada."

As a company that prides itself on its ability to innovate to create bespoke solutions for its customers, Laurentis was up for the challenge and met it with great success. Through a contract with GEN-PRO, Laurentis provided radiation protection and nuclear by-product sorting and classification services to assist Lanmar Environmental Solutions in safely dismantling the cyclotron over a six-week period. Representative samples of all waste streams were provided to McMaster Health Physics for analysis and quantification of any radioactive material that could still be present.

"The Class II cyclotron decommissioning is a symbol of excellence in nuclear science and safety, driven by Laurentis's innovative radiological protection methods and uniquely skilled Power Workers' Union staff," said Chris Horne, Director of Operations at Laurentis Energy Partners. "With the goal of waste minimization, the dedicated team provided radiation protection oversight and the expertise needed to sort and segregate radioactive nuclear by-products from clean materials. It involved meticulous planning, precise demolition, ingenious maneuvering of radioactive material, and detailed surveys and analysis to ensure regulatory standards were met throughout the entire decommissioning process."

This project builds on Laurentis and McMaster's important relationship which first began in 2020 with a research initiative focused on advancing nuclear energy innovations and supporting environmental solutions across the nuclear industry. That project, known as the Clean Energy Materials Sorting and Recycling Facility (CMSR), has made significant strides over the last three years that include the implementation of new techniques to sort and process low-level nuclear byproducts, as well as successfully obtaining Laurentis's first Nuclear Substance Radiation Devices licence from the Canadian Nuclear Safety Commission (CNSC).