Specialized Offshore & Subsea Engineering

Engineering for Submarine HV Cable Systems

Independent technical consultancy delivering solutions in High Voltage cables (HV/HVDC/MVAC), Floating Offshore Wind, multiphysics simulation, and subsea asset integrity.

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Track Record & Capabilities

Offshore Wind Technical Support

Drafting technical specifications, legal claims support, ROV & MBES survey data reviews, and CPS integrity for offshore wind farm Developers.

CIGRE WG B1.63 Member (TB 862)

Co-authorship of international recommendations for mechanical testing of submarine cables in dynamic applications.

International Track Record (Italy & Brazil)

Product management and R&D at Prysmian for deepwater HVDC links and subsea umbilicals.

Experience with Industry Leaders:
Vattenfall BA Wind • Prysmian Group (Italy / Brazil) • CIGRE International • Schneider Electric
Specialties

Specialized Engineering Services

Independent, technical support across the entire lifecycle of subsea power transmission and renewable assets.

Submarine Cable Engineering & EPCI

Independent drafting and review of technical specifications for offshore EPCI tenders and contracts.

  • Independent engineering statements for in-service cables.
  • Field survey data review (ROV video footage, MBES, and monitoring data).
  • Contractor management for CPS re-assessment and support with Legal Claims.

Advanced Multiphysics Modeling & FEA

Advanced numerical modeling to determine thermal, electrical, and mechanical operational limits of subsea cables and accessories.

  • Hydrodynamic, static, and dynamic global analysis in OrcaFlex.
  • Coupled electromagnetic and thermal modeling in COMSOL (CIGRE TB 880).
  • Finite Element Analysis (FEA) in Ansys and Abaqus for umbilicals and accessories.

R&D, Qualification & Floating Wind

Research, development, and strategic advisory for dynamic high-voltage applications in deep and ultra-deep waters.

  • Preliminary technical feasibility studies (Desktop Studies) for floating wind.
  • Supplier technical qualification and factory audit processes.
  • Failure root-cause analysis and laboratory test specification.
Computational Capabilities

Engineering & Simulation Software

Utilizing industry-standard numerical software for subsea product analysis and optimization.

Automation & Data Science Python

Automation of repetitive engineering tasks, data processing, and numerical calculations.

Hydrodynamics OrcaFlex

Global static and dynamic analysis of umbilicals, dynamic cables for Floating Wind, and Cable Protection Systems (CPS).

Multiphysics COMSOL

Coupled electromagnetic and thermal modeling for high-voltage cables according to CIGRE TB 880 recommendations.

Ansys / Abaqus Advanced FEA

Non-linear structural simulation of cable components, termination accessories, and crushing behavior.

3D CAD SolidWorks / Onshape

Detailed 3D modeling of complex assemblies, connectors, and accessories for umbilicals and power cables using SolidWorks and cloud-native Onshape.

Olaf Otte

Olaf Otte

Mechanical Engineer | Principal Consultant & Owner

  • Degree: UFSC (B.Sc. Mechanical Engineering)
  • Committee: CIGRE WG B1.63 (TB 862)
  • Languages: Portuguese (Native), English (Fluent), Italian (Fluent), German (Basic)
Submarine HVDC / HVAC Cables OrcaFlex Python COMSOL SolidWorks Onshape Floating Wind Cable Protection Systems Fatigue assessment Deep water HVAC/HVDC cables Contract Claims Employer Requirements CIGRE TB 862 (WG B1.63)
Technical Leadership

Solid International Track Record in Offshore Engineering

Dreio Engineering combines the flexibility and agility of an independent consultancy with technical expertise gained in major European R&D centers and global cable manufacturing plants.

With hands-on experience developing products and managing major offshore energy projects in Europe and South America, the company provides precise diagnostics and unbiased engineering statements to maximize energy asset performance and reliability.

Owner & Principal Consultant — Dreio Engenharia LTDA
Mar 2022 – Present | Blumenau (Brazil)
Engineering consultancy for global renewable energy developers, supporting HV submarine cables, floating wind developments, employer requirements writing and technical contract claims.
System Engineer / Product Manager — Prysmian Powerlink
May 2016 – Jan 2021 | Milan (Italy)
Designer of extruded Medium, High, and Extra High Voltage cables (AC/DC). Product Management focused on deepwater HVDC links and dynamic MVAC cables for floating wind.
Senior Project Engineer — Prysmian Group
May 2012 – Apr 2016 | Vila Velha (Brazil)
Project engineering with dynamic subsea umbilicals for the Brazilian O&G market. R&D in cable design, testing, and advanced simulation in OrcaFlex, Ansys, and Abaqus.
Research & Publications

Publications & International Contributions

Continuous commitment to knowledge generation and standardization in global subsea engineering.

CIGRE 2022

TB 862 - Recommendations for mechanical testing of submarine cables for dynamic applications

CIGRE Working Group B1.63 Brochure
JICABLE 2019

Light armour cables for submarine deepwater power application

International Conference on Insulated Power Cables
OMAE 2017

An Integrated Environment for Design and Analysis of Umbilical Cables

Ocean, Offshore and Arctic Engineering Conference
OMAE 2016

An experimental assessment on umbilical cable crushing using digital image correlation

Ocean, Offshore and Arctic Engineering Conference
OMAE 2015

Flexible Pipe Anchoring System: Resin Ratio Effects on Mechanical Properties

Ocean, Offshore and Arctic Engineering Conference
COBEM 2009

Numerical simulation of a ceramic kiln for glass melting process

International Congress of Mechanical Engineering
Direct Contact

Let's discuss your project

Get in touch to discuss how Dreio Engineering can bring technical rigor, cost optimization, and asset reliability to your offshore projects.

✉️
dreio.eng@gmail.com
📱
+55 (47) 99630-3851
📍
Blumenau, SC – Brazil (Global Outreach)
🔗
Connect with Olaf Otte

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