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Your HVDC Expertise Partner.

HVDC Connect

Optimize Your HVDC Lifecycle: HVDC Connect - Proven Expertise in O&M and Project Delivery.

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About me

Samy AKKARI

HVDC Expertise: A Proven HVDC specialist in Project Delivery, and Operation & Maintenance.

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Dr. in HVDC Systems with 12+ years of experience driving exceptional results in HVDC projects. Proven ability to deliver both operational excellence and strategic project leadership.

  • Increased Uptime & Reduced Costs: Achieved over 98.5% availability over 8 years of operation at the Baixas HVDC converter station (INELFE project, Siemens Energy) through data-driven O&M practices.

  • Optimizing HVDC Project Delivery:

    • Led the development of VSC-MMC valves, and maintenance in design / maintenance services specifications for major projects (Celtic Interconnector, Biscay Gulf, Centre Manche Offshore).

    • Actively participated in tender evaluation and contract negotiation to ensure optimal project fit and cost-effectiveness for clients.

    • Contributed to the design and execution phases of these projects, leveraging experience to streamline processes and minimize risks.

  • Expertise Across the Lifecycle: Extensive experience in type testing, FAT, commissioning (IFA2 project, Hitachi Energy) and real-time simulation for control system optimization.

  • Proven Leadership & Technical Depth: Managed maintenance policy and budgets for all HVDC links at RTE (French TSO).

 

Highly skilled and versatile, I possess a deep understanding of HVDC systems, including VSC-MMC valve/C&P technology, and familiarity with leading vendors (Siemens Energy, Hitachi Energy, GE Vernova). This comprehensive background equips me to tackle complex challenges and deliver exceptional results for your HVDC projects.

Samy AKKARI
Ancre Portfolio

HVDC Projects

Unlocking HVDC Success: A Look at My Project Portfolio

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INELFE, VSC-MMC

2x1000 MW, ±320kV

Siemens Energy

Role: Principal O&M Manager for RTE

Summary:

  • Achieved over 98.5% total availability over 8 years of operation.

  • Implemented preventive and predictive maintenance practices.

  • Managed maintenance activities.

  • Performed expert-level maintenance tasks (corrective and preventive).

  • Managed the relationship with the manufacturer (Siemens Energy) for the EPC contract and the LTSA contract (supervision and maintenance).

  • Managed and maintained the C&P replica of this project in RTE's real-time simulation laboratory.

Celtic Interconnector,

700 MW, ±320kV

Siemens Energy

Role: Owner Engineer for RTE

Summary:

  • Wrote the HVDC-VSC specification under the EPC contract.

  • Wrote the "Maintenance in Design" specification under the EPC contract.

  • Wrote the "Maintenance Services" specification under the LTSA contract.

  • Evaluated bidders in the tender process on the basis of their technical proposals.

  • Assisted the Purchasing teams with the prices quoted by bidders in the tenders and the contractual and financial clauses associated with the LTSA contract.

  • Conducted final negotiations with the 'preferred bidder' to define the content of expected maintenance services and associated contractual obligations.

  • Participated in and validated the projects' converter station design review.

  • Participated in and validated the type testing of the VSC valves (dielectric and operational type testing).

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Principal asset manager for all of RTE’s HVDC links

  • Development of the maintenance strategy for RTE's HVDC assets.

  • Lifecycle management of RTE's HVDC assets.

  • Defined the national budget guidelines in relation to the OPEX and CAPEX maintenance budgets of each RTE HVDC station.

  • Defended RTE's HVDC OPEX budget trajectories before the French Energy Regulatory Commission.

IFA2, VSC Gen4

1000 MW, ±320kV

Hitachi Energy

Role: Owner Engineer / Commissioning Engineer for RTE

Summary:

  • Participated in and validated the project's converter station design review.

  • Participated in the execution phase of the project.

  • Participated in and validated the FPT/DPT of the project.

  • Participated in the FPT/DPT, and commissioning of the C&P replica system.

  • Participated in and validated the pre-commissioning and commissioning phases of the project.

  • Participation in annual outages since commissioning as HVDC expert.

Biscay Gulf, VSC Gen5

2x1000 MW, ±400kV

Hitachi Energy

Role: Owner Engineer for RTE

Summary:

  • Wrote the HVDC-VSC specification under the EPC contract.

  • Wrote the "Maintenance in Design" specification under the EPC contract.

  • Wrote the "Maintenance Services" specification under the LTSA contract.

  • Evaluated bidders in the tender process on the basis of their technical proposals.

  • Assisted the Purchasing teams with the prices quoted by bidders in the tenders and the contractual and financial clauses associated with the LTSA contract.

  • Conducted final negotiations with the 'preferred bidder' to define the content of expected maintenance services and associated contractual obligations.

  • Participated in and validated the projects' converter station design review.

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HVDC Trainer

  • Provided training services for HVDC projects and O&M of HVDC converter stations for Total Energies.

  • Provided training services under RTE-international as Principal HVDC O&M Engineer.

  • Provided asset management training under RTE-international as Principal Asset Manager for RTE HVDC interconnectors.

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TenneT 2GW Program, Offshore
5x2000 MW, ±525 kV
GE Vernova

Role: System Design Sub Project Lead for TenneT

Summary:

  • Participation, review and validation of HVDC system design and Grid Integration at program level, portfolio level and project level.

  • Participation and validation of the type testing of the new generation of VSC valves (dielectric and operational type testing).

  • Review and validation of the new generation of HVDC C&P hardware and architecture.

  • Management, review and validation of the new generation of HVDC C&P software (eLumina) and functionalities development for bipole topology.

Centre Manche, Offshore,

3x1250 MW, ±320kV

Hitachi Energy

Role: Owner Engineer for RTE

Summary:

  • Wrote the HVDC-VSC specification under the EPC contract.

  • Wrote the "Maintenance in Design" specification under the EPC contract (for both onshore and offshore converter stations).

  • Wrote the "Maintenance Services" specification under the LTSA contract (for both onshore and offshore converter stations).

  • Evaluated bidders in the tender process on the basis of their technical proposals.

  • Assisted the Purchasing teams with the prices quoted by bidders in the tenders and the contractual and financial clauses associated with the LTSA contract.

  • Conducted final negotiations with the 'preferred bidder' to define the content of expected maintenance services and associated contractual obligations.

France-Italy Link, VSC Gen1

2x600 MW, ±320kV

GE Vernova

Role: HVDC Expert

Summary:

  • Contributed to the design phase of the project.

  • Participated in and validated the type testing of the VSC valves (dielectric and operational type testing).

  • Provided expert guidance on various defects identified during commissioning.

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