Onboard DC Grid The step forward in Power Generation and Propulsion © ABB Group October 7, 2015 | Slide 1 Ismir Fazlagic, Global Products and Solution Manager, Nor-shipping 2013

 Greener  Smarter  Simpler  Be competitive now and stay competitive for the next 20+ years Imagine your next ship: Proven technology and prepared for the future © ABB Group October 7, 2015 | Slide 2

Onboard DC Grid SFOC – Fixed Speed Engine Load [% of MCR)

Onboard DC Grid Configuration overview  Traditional AC System Removed components  Onboard DC Grid ES: Energy Storage FC: Fuel Cell Developed components

Onboard DC Grid Vessel layout example – Onboard DC Grid

Onboard DC Grid Enabling Optimum Operation of Engines at low load Load [% of MCR)

Onboard DC Grid Efficiency - Variable Speed Operation  Reduction of SFOC by up to 21%  Reduced Emissions  Cleaner combustion  Reduced Engine Maintenance

Onboard DC Grid  Up to 30% reduction in weight and footprint of electrical power system  More flexible placement of electrical equipment  More functional layout of vessel  Reduction in Cu weight  40% reduction in Cu weight  75-85% reduction in corridor reserved for power transmission Weight and Space Savings

Onboard DC Grid Reference case – Dina Star Dina Star Delivered: March 2013 Voltage Level: 1000Vdc Speed range: rpm Engines:4 x Catepillar 3516C 1 x Catepillar C32 Generation: 4 x 2.24MW UNIREC 1 x 920kW UNIREC Propulsion: 2 x 2.2MW ACS800 Thrusters: 2 x 925kW ACS800 Tunnel 1 x 880kW ACS800 Azimuth

Onboard DC Grid Dina Star – Performance Fuel SavingsLoad Steps  ~10% for a typical operational profile. Compared to fixed speed DE equivalent. Blackout restart  Generator Online: 12s  System Recovered: 17s Main Propulsion Ramps  More dynamic than AC system with same 1800rpm  0-70% Power: 7sec  Ramp is adjusted as a function of no.engines online Power Limitation  Power limitation sent and feedback received within 200ms Engines  «medium speed reliability with high speed footprint and performance»  System survived a 1400kW load step on 1200rpm FMEA  No findings during DP2 FMEA Major Fault Recovery  Fault on internal dc link of drives cleared in <500ms  Power restored to system in 500ms Noise Level  «like being on a ship running on batteries»

Annual Savings Operation Profile and Specific Fuel Oil Consumption Month DD, Year | Slide 11 © ABB Group

Onboard DC Grid Up to 20% fuel saving potential Up to 30% Reduced Footprint and more flexible system design giving a higher vessel value Quicker and more dynamic system performance Leaner system with less components and reduced complexity

© ABB Group October 7, 2015 | Slide 13