Control behind icebreaking power: an LNG carrier’s 2017 sea trial
Use an actual trial account to examine electrical stability when a propeller encounters heavy ice.
Updated Oct 31, 2026
The documented trial
According to ABB’s technical account, Christophe de Margerie departed for ice trials on 2017-02-02. Its 3 propulsion units rated at 15 MW each provided 45 MW in total. The account describes other pods and resistor banks adjusting loads to stabilize the electrical network when ice stalled a propeller. This is a supplier-authored trial record.
Component performance versus system performance
The lesson is to evaluate nameplate power separately from operating stability. Where generation, drives and controls interact, a component specification alone cannot describe the system. Assessing alternative suppliers also requires asking for integrated trial evidence and identifying maintenance responsibilities, beyond whether the equipment can be manufactured.
Questions the trial does not answer
A trial on a particular vessel under particular conditions does not guarantee all-season operations or long-term failure rates. It does not establish competitor comparisons, validation of Chinese equipment, the legality of supply restrictions or current commercial route profitability. The event start is the trial departure date rather than the publication date.
Sources
- ABB — Ice Mode Encounters in Kara Sea on-board Christophe de MargerieAccessed Oct 31, 2026