Consulting

Power Grid & Power Electronics Consulting

We specialize in comprehensive energy consulting for the design and integration of power systems into the grid. Our expertise covers the connection of power producers—such as generators—to power consumers including transformers, motors, and frequency converters, all seamlessly integrated via switchboards.

  • ▪️Design and integration of AC and DC switchboards for low, medium, and high voltage applications.
  • ▪️Electrical studies, analysis, and complete review of design documentation.
  • ▪️Smart solutions for managing, testing, and assuring the quality of energy systems.
  • ▪️Design, calculation, and simulation of electrical connections to the grid.
  • ▪️Independent verification of third-party calculations, with technical advisory support throughout the project lifecycle—from pre-contractual planning to execution.

Hybrid Power Systems Expertise

We offer specialist advisory services for hybrid power solutions that combine various energy sources and storage technologies:

  • ▪️Integration of energy storage systems: BESS (battery energy storage systems), generators, fuel cells, and super/ultra-capacitors.
  • ▪️Technical support across all battery chemistries, fuel cell types, and super-capacitor solutions.
  • ▪️Protection system selection, including review of protection studies and early design consultation.
  • ▪️Transient analysis, inrush/start-up studies, and advising on optimal starting methods for power consumers.
  • ▪️Testing advisory services covering FAT (Factory Acceptance Test), SAT (Site Acceptance Test), HAT (Harbor Acceptance Test), and operational phases.

Power Quality Consulting

We provide end-to-end consulting for complex power quality challenges related to power electronics integration:

  • ▪️Common mode and EMC advisory during design and after system commissioning, helping to mitigate and correct EMC-related issues.
  • ▪️Analysis and mitigation of system harmonics, especially in non-linear load conditions (e.g., VFDs/drives).
  • ▪️Support for control system tuning and resolving conflicts between power system devices.
  • ▪️Root cause analysis and corrective solutions for system malfunctions or performance issues—even post-installation.
  • ▪️Coordination with suppliers or third-party equipment providers to implement corrective actions.
  • ▪️Strategic advisory for working effectively with integrators and suppliers, drawing on extensive project management experience.

Marine Electrical Systems Consulting

We bring deep expertise in marine electrical systems and offshore compliance, supporting clients in meeting the highest international standards:

  • ▪️Ensuring compliance with class societies including DNV, ABS, LR, and BV.
  • ▪️Specialized in offshore standards and DP2/DP3 vessel requirements, including offshore notations, TECHOP, IMCA guidelines, and more.
  • ▪️Power system design and advisory for all marine vessel types: cruise ships, fishing vessels, yachts, and offshore vessels.
  • ▪️Renewable energy projects: power-from-shore (PfS), power-to-shore, and integration with offshore wind farms.
  • ▪️Electrical design and consulting for oil & gas offshore installations.

Power System Design & Analysis

We provide specialized power system consulting for utility-scale, industrial, commercial, and renewable energy projects. Combining deep technical expertise with extensive industry experience, we use advanced software tools like ETAP, PSCAD and ATP-EMTP to deliver robust, cost-effective solutions tailored to each client’s operational and compliance needs. Our team supports projects at every stage—from concept and feasibility through detailed design, verification, and operational optimization.

Power System Design 

We offer complete power system design solutions to ensure reliable, efficient, and standards-compliant performance:

  • ▪️Medium voltage (MV) and high voltage (HV) network design
  • ▪️MV/HV substation design and optimization
  • ▪️Earthing (grounding) system design and safety assessments
  • ▪️Protection system design and relay settings
  • ▪️Grid interconnection design to meet utility and regulatory requirements
  • ▪️Insulation coordination and equipment rating verification
  • ▪️Reactive power compensation and power factor correction systems
  • ▪️Detailed engineering documentation to support construction, procurement, and regulatory approvals

Power System Analysis 

Our analysis services help identify, mitigate, and prevent system risks and inefficiencies—ensuring operational reliability and compliance:

  • ▪️Load flow analysis for steady-state system performance and capacity planning
  • ▪️Short circuit studies to validate protective device selection and equipment ratings
  • ▪️Harmonic analysis to assess and mitigate harmonic distortion impacts
  • ▪️Transient stability analysis to evaluate dynamic response under disturbances
  • ▪️Electromagnetic Transients (EMT) Studies for switching transient analysis to prevent overvoltages and protect equipment and transformer energisation transients
  • ▪️Protection coordination studies for system selectivity and fault isolation
  • ▪️Arc flash hazard analysis and risk mitigation strategies
  • ▪️Reliability and contingency analysis to enhance system resilience
  • ▪️Grid interconnection compliance and modeling for renewable integration
  • ▪️Feasibility studies and techno-economic analysis for new power generation and renewable projects

Energy Efficiency Improvement Studies – Industrial & Commercial

We provide comprehensive energy efficiency improvement studies for industrial facilities and commercial buildings. Our approach combines deep technical expertise with advanced analytical tools to help clients reduce energy consumption, cut operational costs, and meet sustainability and decarbonisation targets.

Our studies cover the entire project cycle — from detailed audits and diagnostics to actionable design recommendations and implementation support.

Our services include:

▪️Detailed energy audits: Site surveys and data-driven analysis of electrical and mechanical systems, identifying inefficiencies in equipment, process loads, HVAC, lighting, and building services.

▪️Load profiling & monitoring: Measurement and analysis of real-time energy use to uncover demand peaks, power factor issues, and areas for load optimisation.

▪️Process & equipment optimisation: Recommendations for upgrades or retrofits (e.g., variable speed drives, efficient motors, LED lighting, heat recovery) tailored to site-specific needs.

▪️Power quality & harmonic studies: Analysis to reduce losses, protect sensitive equipment, and improve overall system performance.

▪️Integration of renewables & storage: Feasibility studies for onsite PV, battery storage, or CHP systems to lower grid dependency and reduce carbon footprint.

▪️Control & automation strategies: Design of smart control systems (e.g., EMS, BMS, demand response) for dynamic load management and peak shaving.

▪️Techno-economic analysis: Comprehensive cost-benefit assessments, payback calculations, and lifecycle cost analysis to prioritise energy-saving investments.

▪️Implementation roadmap & verification: Action plans aligned with client budgets and targets, plus measurement and verification strategies to track savings post-implementation.

Whether supporting a heavy industrial plant, a multi-use commercial complex, or specialised facilities such as hospitals and data centres, OEC Power & Control delivers energy efficiency solutions that improve competitiveness, sustainability, and operational resilience.

Maritime Clean Technology

We specialize in providing comprehensive solutions to navigate the evolving landscape of energy systems towards sustainability and efficiency. Our team of seasoned engineers and experts offer strategic guidance and innovative solutions to facilitate the transition from conventional energy sources to renewable alternatives. From assessing current infrastructure and energy usage patterns to designing and implementing advanced electrification strategies, we are dedicated to driving impactful change. Whether you’re seeking to optimize energy efficiency, integrate renewable energy sources, or electrify transportation systems, our consulting services are designed to meet your unique needs and accelerate your journey towards a greener future. Partner with us to unlock the full potential of energy transition and electrification for your organization.

Electrification strategy development for offshore oil & gas assets.

  • Concept and detailed design of hybrid systems including energy storage systems, renewable systems
  • Hybrid system modelling and dynamic simulation (matlab simscape) and HIL (hardware in the loop) testing.
  • Power management system and control system design for hybrid systems.
  • Hybrid system retrofit integration design for existing vessels.
Image Source – www.dezeen.com

Autonomous Shipping

OEC has experience in developing smaller scale autonomous vessels for military and civilian applications and developing technical solutions for large scale commercial vessels.

OEC offers following services following services for autonomous systems:

  • Safety verification and validation of autonomous systems
  • System integration design of power, propulsion, communication and sensor systems
  • Control systems and operator interface design

Owner's Engineer

OEC provides owner’s engineer service for newbuilding, conversion and modification projects.  Our expertise will help clients to design, specify, select power system architectures, automation and control systems and equipment that suit their requirements, not to solely depend on shipyard or vendors hence saving money.  It is better to appoint a specialist owner’s engineer early in the project.

  • The Owner’s engineer will work on following areas:
  • Contract review
  • Vendor/ Subcontractor selection
  • Attending meetings, FATs
  • Liaison with Classification , Flag states, Shipyards, Vendors and subcontractors
  • New build and conversion supervision
  • Technical document preparation
  • Project management

Research and Development

OEC actively engaged in R&D projects for technology development for products including software. Our research mainly focuses on clean technology.

Dynamic Positioning

OEC offers a complete range of Dynamic Positioning (DP) engineering and consultancy services. Our DP services include technical and assurance type of work to help clients to ensure a specific  vessel has the ability to maintain defined position and heading limits for the completion of intended missions.

  • DP FMEA/FMECA
  • DP FMEA/FMECA Proving Trials
  • DP Annual Trials
  • DP Remote Trials
  • DP Operation Manuals
  • DP Assurance
  • FMEA/FMECA and trials programmes for ballast systems, diving systems, cablelay systems, pipelay systems and crane systems
  • DP vessel new built and conversion design and review
  • DP upgrade design and review
  • Hybrid power system integration support
  • Drillships
  • Semi submersibles
  • Offshore Support Vessels
  • Diving Support Vessels
  • FPSO
  • Shuttle tankers
  • Pipelayers
  • Cablelayers
  • Crane vessels
  • Windfarm support vessels
  • Mega yachts
  • Survey vessels
Image Source – www.vesselfinder.com