Skeleton Technologies ultracapacitor marine applications

active heave
compensation

Keeping loads under control in harsh weather conditions

Benefits of our solution

  • Reduced overall system power demand
  • Higher reliability and safety when working at sea
  • Less energy demand
  • No waste of energy
  • Cost saving: ultracapacitors require zero maintenance

Challenge

Unreliable hydraulic technology & loss of braking energy

  • Background
  • Active Heave Compensation (AHC) systems must keep the ship or platform crane load steady even if there is a heavy swell out at sea
  • Vertical positioning is a cyclical movement that happens with periods of 3-10 seconds, following waves
  • Key Challenges
  • Unreliable and complex hydraulic technology
  • Loss of braking energy, which is dissipated through a braking resistor
  • Short-lived lead-acid- or Lithium-ion-powered systems (Typ. 110 days)
  • High-maintenance and battery replacement costs
  • Reliability & safety matter when working at sea
  • known consequences
  • Potential catastrophic events due to failure of the AHC system
  • High maintenance costs and downtime
  • Difficulties to troubleshoot hydraulic systems
  • High fuel costs
  • Background
  • Active Heave Compensation (AHC) systems must keep the ship or platform crane load steady even if there is a heavy swell out at sea
  • Vertical positioning is a cyclical movement that happens with periods of 3-10 seconds, following waves
  • Key Challenges
  • Unreliable and complex hydraulic technology
  • Loss of braking energy, which is dissipated through a braking resistor
  • Short-lived lead-acid- or Lithium-ion-powered systems (Typ. 110 days)
  • High-maintenance and battery replacement costs
  • Reliability & safety matter when working at sea
  • known consequences
  • Potential catastrophic events due to failure of the AHC system
  • High maintenance costs and downtime
  • Difficulties to troubleshoot hydraulic systems
  • High fuel costs
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solution

High reliability & safety when working at sea

  • what we offer
  • Water-cooled 170V ultracapacitor module technology for Active Heave Compensation (AHC) systems
  • Energy regeneration during the "heave up“ phase and energy consumption during the "heave down" phase
  • Peak shaving capability
  • ADVANTAGES OF OUR PRODUCT
  • Extra low ESR for less dissipation and longer lifetime
  • No mechanical parts wear out
  • Reduced sizing vs Li-ion batteries
  • Ultracapacitors do not catch fire or suffer runaway events
  • Simpler monitoring and system health checks
  • -40°C to +65°C operating temperature range
  • Easily fully discharged for safe maintenance operations

case study

75% energy demand reduction

WATER COOLED 170V ULTRACAPACITOR MODULE TECHNOLOGY

  • 75% in overall energy demand reduction
  • Peak power demand reduction from the generator
  • The power supply split:
    • 30% for the genset + 70% for the Energy Storage System
  • Considerable downsizing of the genset
  • Reduced power fluctuations
  • Extended lifetime of the generator
  • Controlled ramp down and shut down
  • Longer lifetime: at least 10 years of operation

WATER COOLED 170V ULTRACAPACITOR MODULE TECHNOLOGY

  • 75% in overall energy demand reduction
  • Peak power demand reduction from the generator
  • The power supply split:
    • 30% for the genset + 70% for the Energy Storage System
  • Considerable downsizing of the genset
  • Reduced power fluctuations
  • Extended lifetime of the generator
  • Controlled ramp down and shut down
  • Longer lifetime: at least 10 years of operation

75%IN OVERALL ENERGY DEMAND REDUCTION

Get in Touch With Us!

To discuss how our ultracapacitors can help your company save energy.