RE: Amrita last interview by Squawk Box a week ago20 Apr 2026 09:19
A 60-day stay in a warm water port significantly increases operational risks for a large oil tanker, causing severe marine growth (biofouling) that reduces fuel efficiency by up to 16% due to drag. The extended stay in warm climates raises the risks of engine overheating, high cargo vapor pressure, and accelerated corrosion of structural steel, particularly in older "shadow fleet" vessels.
Greenpeace
Greenpeace
+3
Operational and Technical Impacts:
Marine Growth & Hull Fouling: Warm water accelerates seaweed and barnacle growth, causing significant hull fouling. This increases drag, necessitating higher fuel consumption to maintain speeds.
Corrosion and Structural Degradation: High humidity and salinity accelerate the degradation of steel, particularly in aging tankers.
Cargo Management: Extended time in warm environments increases the risk of high vapor pressure in tanks, requiring careful monitoring to prevent excessive venting.
Engine & System Maintenance: Prolonged idling can lead to clogged sea chests (water inlets) due to marine growth, leading to engine cooling issues.
www.u-mas.co.uk
www.u-mas.co.uk
+4
Environmental and Security Risks:
Environmental Disaster Risk: Extended, stationary,, or abandoned tankers (often part of a "shadow fleet") pose a high risk of catastrophic oil spills.
Geopolitical/Cargo Security: Ships waiting this long, especially in conflict-prone areas like the Red Sea or Persian Gulf, are vulnerable to attacks or seizure, turning them into "ticking time bombs".
The Strategist | ASPI's analysis and commentary site
The Strategist | ASPI's analysis and commentary site
+4
Economic Consequences:
Increased Costs: Increased fuel consumption and the need for hull cleaning (underwater grooming) can severely impact operating costs.
Efficiency Penalties: Extended waiting periods can prevent vessels from meeting CII (Carbon Intensity Indicator) environmental standards, impacting their operational rating.