- Safe & precise maneuverability
- 20-30% energy savings compared to variable pitch thrusters
- Low maintenance cost
From coastal vessels to global fleets, SPOC provides reliable, energy-efficient power systems that maximize performance and minimize emissions. Built to endure the harshest marine environments, our technology ensures continuous uptime, cost efficiency, and a sustainable maritime future.
SPOC has 25 years of experience building Variable Frequency Drive packages – with over 80,000 units installed in the harshest environments. Offering a full range of sizes from <1kW to 4 MW and voltages of 480, 690 VAC and up to 1100 VDC, we provide complete plug-and-play solutions including power electronics, circuit protection, and enclosures – as well as active and passive IEEE 519 compliant harmonic solutions. SPOC provides industry-leading 24/7 support and on-site service. Upgrade your power system to reduce inrush currents, minimize mechanical stress, and optimize your power usage and efficiency.
SPOC engineers, manufactures, and services inverter-based marine power systems – providing you with purpose-built systems for the most demanding applications. Whether it’s for the power distribution system on a new build or retrofitting batteries to an existing vessel or VFD packages for all your auxiliary loads – SPOC has the solutions you need. We supply inverters, filters, chokes, circuit protection as well as custom enclosures and complete liquid cooling systems including chillers. Contact us to talk to an expert in adopting energy storage or advanced next-generation DC bus configurations to enhance redundancy, reliability, and efficiency. SPOC understands the critical nature of the marine industry and offers 24/7 service and support to our valued clients.
At SPOC, our power conversion technology and expertise in a broad array of energy storage chemistries help you build ships with smarter, higher performing hybrid power systems that burn less diesel fuel and create fewer carbon emissions.
We have designed, delivered, and serviced inverters from 250 kW to 2 MW for DP-classed vessels (ABS, DNV, LR).
SPOC has the capability to work on a wide range of marine vessels, particularly those in industries requiring robust and efficient power systems.
FPSOs are key to offshore oil and gas, requiring efficiency in processing, storage, and mobility. SPOC Marine’s hybrid solutions optimize gas compression, improve repositioning, and enhance onboard comfort.
Compressor Drives -
Efficient gas compression for storage.
Propulsion Control -
Energy-efficient repositioning.
HVAC Systems -
Comfortable working environment.
Offshore heavy lift vessels require stability, control, and efficiency to handle massive loads. SPOC Marine’s hybrid solutions enhance crane performance, improve thruster-driven stability, and optimize propulsion for efficient navigation.
Crane Drives -
High-capacity lifting and precision.
Thruster Drives -
Improved stability during heavy lifts.
Propulsion Control -
Efficient navigation with heavy loads.
Offshore subsea construction vessels need reliability and precision for complex tasks. SPOC Marine’s hybrid solutions boost efficiency, stability, and maneuverability for seamless operations in tough marine environments.
Crane Drives -
Smooth and efficient subsea lifting.
Thruster Drives -
Precise dynamic positioning.
Propulsion Control -
Efficient transit between sites.
Accommodation vessels require reliable power, mobility, and climate control to support crews at sea. SPOC Marine’s hybrid solutions ensure efficiency, stability, and comfort, creating a safer and more sustainable living environment.
HVAC Systems -
Enhanced onboard comfort for crews.
Propulsion Control -
Efficient transit between sites.
Generator Optimization -
Stable power for utilities.
Jack-up rigs require precision for safe, efficient operations. SPOC Marine’s hybrid solutions improve movement, optimize station-keeping, and ensure precise ballast management for stability in tough offshore conditions.
Jacking Drives -
Efficient platform raising and lowering.
Thruster Drives -
Improved station-keeping during drilling.
Ballast Water Management -
Precise weight distribution.
Drillships need stability, efficiency, and control for offshore operations. SPOC Marine’s hybrid solutions optimize mud circulation, improve station-keeping, and enhance onboard comfort in extreme conditions.
Mud Pump Control -
Efficient mud circulation for drilling.
Thruster Drives -
Station-keeping during operations.
HVAC Systems -
Comfortable living environment.
Offshore supply vessels need reliability and precision in harsh conditions. SPOC Marine’s hybrid solutions boost fuel efficiency, maneuverability, crew comfort, and station-keeping while cutting diesel use.
Propulsion Control -
Enhanced maneuverability and fuel efficiency.
Thruster Drives -
Precise station-keeping.
HVAC Systems -
Improved crew comfort.
Semi-submersible rigs need precise positioning and stability for safe operations. SPOC Marine’s hybrid solutions enhance energy-efficient relocation, optimize positioning, and ensure balanced ballast management for peak offshore performance.
Propulsion Control -
Energy-efficient rig relocation.
Thruster Drives -
Accurate dynamic positioning.
Ballast Water Management -
Optimized platform stability.
Diving support vessels need reliable positioning, efficient navigation, and dependable air supply for safe operations. SPOC Marine’s hybrid solutions enhance performance, ensuring smooth and efficient support for underwater missions.
Thruster Drives -
Station-keeping for safe diving operations.
Compressor Systems -
Reliable air supply for divers.
Propulsion Control -
Energy-efficient navigation.
Wind turbine installation vessels need stability, control, and efficiency offshore. SPOC Marine’s hybrid solutions improve positioning, optimize lifting, and boost fuel efficiency for seamless turbine deployment.
Thruster Drives -
Precise positioning for installations.
Crane Drives -
Efficient turbine lifting operations.
Propulsion Control -
Fuel savings during transit.
Service operations vessels need stability, control, and comfort for offshore tasks. SPOC Marine’s advanced systems improve positioning, optimize propulsion for fuel savings, and enhance the onboard climate.
Thruster Drives -
Precise positioning for installations.
Propulsion Control -
Fuel savings during transit.
HVAC Systems -
Comfortable onboard climate.
Well intervention vessels need stability, control, and efficiency for critical offshore operations. SPOC Marine’s hybrid solutions optimize positioning, enhance well pump performance, and improve fuel efficiency for seamless and reliable maintenance.
Thruster Drives -
Enhanced positioning for operations.
Well Pump Systems -
Reliable well maintenance capabilities.
Propulsion Control -
Reduced fuel usage during transit.
Anchor handling tugs need strength, precision, and efficiency for heavy tasks. SPOC Marine’s hybrid solutions boost towing power, optimize maneuverability, and ensure reliable anchor handling for peak performance.
Winch Drives -
Reliable anchor handling operations.
Propulsion Control -
Increased towing efficiency.
Thruster Drives -
Precise maneuverability.
LNG tankers need precise cooling, efficient transfer, and stability. SPOC Marine’s hybrid solutions optimize compressors, enhance pumps, and ensure a comfortable climate for safe, reliable operations.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Auxiliary Pump Systems -
Improved LNG transfer efficiency.
HVAC Systems -
Comfortable onboard climate.
Reefer ships demand precise temperature control, fuel efficiency, and crew comfort. SPOC Marine’s hybrid solutions enhance refrigeration reliability, optimize propulsion, and improve onboard climate for smooth and efficient operations.
Compressor Drives -
Reliable refrigeration for cargo.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
HVAC Systems -
Better onboard living environment.
Cruise ships require efficiency, precision, and comfort. SPOC Marine’s hybrid tech improves climate control, boosts maneuverability, and optimizes fuel use for a smoother, more sustainable voyage.
HVAC Systems -
Enhanced passenger comfort.
Thruster Drives -
Precise maneuverability.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Container ships demand fuel efficiency and cargo precision. SPOC Marine’s advanced propulsion cuts fuel costs, while optimized crane drives and HVAC systems improve loading efficiency and enhance crew comfort.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Crane Drives -
Efficient and smooth cargo handling.
HVAC Systems -
Improved conditions for crew.
General cargo ships require efficiency and comfort. SPOC Marine’s hybrid tech improves fuel efficiency, optimizes cargo handling, and ensures a comfortable onboard environment for long voyages.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Crane Drives -
Improved cargo handling capabilities.
HVAC Systems -
Comfortable living environment.
Feeder ships need precise maneuverability and fuel efficiency. SPOC Marine’s hybrid tech optimizes propulsion, enhances thruster control, and improves crew comfort for efficient, cost-effective transit.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Thruster Drives -
Better port maneuverability.
HVAC Systems -
Enhanced crew comfort.
Oil tankers require precision and reliability. SPOC Marine optimizes pump control for safe transfer, enhances ballast water management for stability, and ensures a more comfortable onboard environment.
Pump Control -
Safe and efficient fluid transfer.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Ballast Water Management -
Efficient weight distribution.
Bulk carriers demand fuel efficiency and strict regulatory compliance. SPOC Marine optimizes pumping systems, ensures precise ballast management, and enhances propulsion for cost-effective, smooth operations.
Pumping Systems -
Energy-efficient fluid handling.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Energy-efficient cargo handling -
Demand-based motor speed adjustment..
Ro-Ro vessels need smooth cargo movement and efficiency. SPOC Marine enhances ramp operations, ensures a controlled onboard climate, and improves propulsion to cut fuel use and emissions.
Ramp Winch Systems -
Smooth and reliable operations.
HVAC Systems -
Optimized onboard climate control.
Propulsion Control -
Lower fuel consumption and emissions.
Push boats and tow boats need efficient propulsion for demanding routes. SPOC Marine’s solutions improve fuel economy, optimize power, and enhance crew comfort for reliable long-haul performance.
Propulsion Control -
Reduced fuel usage and emissions.
Generator Optimization -
Consistent and efficient power output.
HVAC Systems -
Improved onboard comfort.
River ferries require efficiency, reliability, and passenger comfort. SPOC Marine optimizes propulsion, enhances climate control, and reduces energy costs for safe, sustainable, and continuous operation.
Propulsion Control -
Efficient and reliable operations.
HVAC Systems -
Enhanced passenger comfort.
Generator Optimization -
Reduced operational costs.
Fishing vessels need efficiency, control, and reliability to maximize productivity at sea. SPOC Marine’s hybrid solutions optimize fuel use, improve hydraulic precision for net handling, and ensure a stable power supply for critical onboard systems.
Propulsion Control -
Improved fuel economy.
Hydraulic Systems -
Better net handling.
Generator Optimization -
Reliable power for equipment.
Tugboats need responsive control, strong towing, and consistent power. SPOC Marine’s hybrid solutions improve propulsion, ensure smooth winch performance, and provide stable energy for operations.
Propulsion Control -
Improved efficiency and response.
Winch Drives -
Smooth and reliable towing operations.
Generator Optimization -
Stable power for instruments.
Dredgers need precision, durability, and efficiency for demanding operations. SPOC Marine optimizes cutterhead control, winch positioning, and discharge handling to maximize productivity and reliability.
Cutterhead Motors -
Optimized speed and torque for efficient digging.
Winches & Hoists -
Smooth positioning for safety and reliability.
Conveyors & Discharge Systems -
Controlled handling to reduce spillage.
Hospital ships need precision and reliability for critical care. SPOC Marine’s hybrid solutions enhance climate control, ensure stable power for medical equipment, and provide reliable propulsion for urgent missions.
HVAC Systems -
Enhanced climate control for patients.
Propulsion Control -
Reliable transit in emergencies.
Generator Optimization -
Stable power for medical equipment.
Patrol boats operate in high-stakes conditions requiring speed and efficiency. SPOC Marine’s hybrid solutions improve propulsion for rapid response, ensure reliable power, and maintain a stable onboard climate.
Propulsion Control -
Enhanced speed and response efficiency.
Generator Optimization -
Improved operational reliability.
HVAC Systems -
Comfortable onboard environment.
Icebreakers need force and precision to navigate harsh environments. SPOC Marine’s hybrid solutions provide high-torque propulsion, advanced thruster control, and optimized power for efficiency and reliability.
Hybrid Shaft Generator -
Increases fuel efficiency and lowers emissions.
Thruster Drives -
Enhanced maneuverability.
Generator Optimization -
Fuel savings and reliable power output.
Survey vessels need precise maneuverability and steady power for sensitive equipment. SPOC Marine’s technology improves positioning, optimizes propulsion, and ensures a reliable energy supply for accurate data collection.
Thruster Drives -
Precise positioning during surveys.
Propulsion Control -
Fuel-efficient navigation.
Generator Optimization -
Stable power for instruments
Firefighting vessels require quick deployment and strong suppression systems. SPOC Marine’s technology enhances water pump efficiency, ensures climate control, and provides dependable propulsion for emergencies.
Water Pump Control -
High-efficiency firefighting capabilities.
HVAC Systems -
Optimized onboard climate control.
Propulsion Control -
Reliable transit to emergency sites.
Research vessels need reliable systems for extended operations at sea. SPOC Marine’s advanced solutions ensure precise equipment deployment, fuel-efficient navigation, and a comfortable onboard environment for crews.
Winch Systems -
Precise deployment of equipment.
Propulsion Control -
Energy-efficient long-distance navigation.
HVAC Systems -
Comfortable work environment.
Fleet oilers must enable seamless fuel and cargo transfer. SPOC Marine’s systems improve winch precision, optimize propulsion for fuel savings, and streamline cargo pump operations for smooth, efficient transfers.
Thruster Drives -
Enhanced maneuverability.
HVAC Systems -
Comfortable work environment.
Cargo Pump Systems -
Improved cargo transfer efficiency.
Dry cargo ships need efficiency, precision, and reliable power. SPOC Marine’s systems optimize propulsion for fuel savings, enhance winch performance for cargo handling, and ensure a stable environment for crew comfort.
Winch Systems -
Precise deployment of equipment.
Thruster Drives -
Enhanced maneuverability.
Cargo Pump Systems -
Improved cargo transfer efficiency.
Our technology optimizes energy use, reduces emissions, and extends equipment life, delivering smarter, more sustainable performance throughout your vessel.
Achieve precision at speed and high torque
Flexible, compact, robust solutions
Drives control pumps to match actual process need, leading to reduced energy consumption. Reducing the speed by 20% reduces the power consumption by 50%. AC drives also protect the pump, extending service intervals and total lifetime.
Clean air thanks to less emissions
New-build or retrofitted battery energy storage gives the vessel:
Established IT grid technology
Traditional AC grids in the form of IT grid are well established technology and run at lower voltages than DC grids, meaning:
Power generation and power conversion
More speed and accuracy – using less power
Improve safety and save 30% on energy consumption
Accurate and reliable lifting onboard and onshore
Reduce energy consumption
Match flow demand and save
Drives protect and optimize uptime
Screw, reciprocating, and scroll compressors
Save up to 30% on fuel consumption
Add e-storage and use it as an active component to achieve less fuel consumption and less emissions
Greater efficiency, easier battery integration
A DC grid on board the vessel improves overall efficiency and reliability. Integration of energy storage systems becomes easier.
Save up to 30% on fuel consumption
Reduce emissions by shutting down auxiliary generators
Serves a broad range of demanding industrial applications, focusing on higher power sizes and system drives
Power range
Power range - AFE supply
Power range - Low harmonic, Active Filter supplies
*Requires 690 V active filter
For advanced AC/DC power conversion
Ratings
Bidirectional low harmonic supply unit for motor drive applications
Ratings
Tap into the benefits of electrification
Ratings
Bidirectional DC-fed power inverter for the supply and control of AC motors and generators
Ratings
Ensure fast disconnection and full selectivity between DC grids
Current range
At SPOC, we are committed to being your hands-on partner throughout the entire lifespan of your equipment. Whether you need fast repairs, preventative maintenance, or technical advice, our professional field service team delivers reliable solutions when you need them most. From 24/7 tech support via phone, live chat, or video, we ensure your operations run seamlessly. We prioritize speed—offering expedited shipping and quick-response field service teams—so you can stay focused on your business without unnecessary downtime.
If you want to know what makes SPOC a special place, understand these five core aspects of our beliefs.