This Is the Biggest Ship in the World

Quick Overview

The Shell Prelude FLNG, the world's largest vessel at 488 meters long and costing $10.8 - $12.6 billion, has faced significant operational struggles, including a power outage caused by a fire in December 2022, leading Shell to halt production indefinitely and halt plans for building another facility of its kind.

Key Points: The FLNG Prelude is the largest vessel ever built, measuring 488 meters (1,600 ft) long and 75 meters wide, costing between $10.8 and $12.6 billion USD. In December 2022, the Prelude suffered a complete power outage due to an onboard fire, requiring three days for the crew to restore intermittent power. Shell has no plans to build another Prelude FLNG facility due to ongoing operational, financial, and safety challenges. The Prelude's operational output is significantly less than land-based LNG facilities, producing 3.6 million metric tons of LNG annually compared to 11.1 million metric tons for a comparable land facility. The vessel is designed to withstand extreme weather, including Category 5 cyclones and 'one-in-10,000-years' storms with 185 mph gusts and 65ft waves. The facility houses 25,000 mooring chain links, 450 km of pipelines, and 3,000 km of electrical cables, and supports a crew of about 200 people. The Prelude liquefies natural gas at -162°C, reducing its volume to 1/600th of its gaseous state for efficient transport via LNG carrier ships.

Context: This video analyzes the scale and operational history of Shell's FLNG Prelude, the world's largest floating liquefied natural gas facility, situated off the coast of Western Australia. The comparison draws parallels between the Prelude's massive size and other large structures or vessels, while detailing its operational setbacks, including a major fire and subsequent production halt, which have cast doubt on the viability of building similar future projects.

Detailed Analysis

The video establishes the FLNG Prelude as the largest vessel ever built, measuring 488 meters long and 75 meters wide, a project costing between $10.8 and $12.6 billion USD. It contrasts this size with Carnival's Wonder of the Seas (362.04m) and the historical Seawise Giant (458.46m). The Prelude is a Floating Liquefied Natural Gas facility located off the coast of Western Australia in an area known as Cyclone Alley. It was designed to withstand extreme weather, including Category 5 cyclones and 10,000-year storms with 65ft waves. The facility is incredibly complex, using 25,000 mooring chain links to secure its position and housing 200 personnel. The liquefaction process cools natural gas to -162°C, reducing its volume to 1/600th for transport via LNG carriers to markets like Japan, China, South Korea, and Thailand. However, despite its engineering marvel status, the Prelude has been an operational disappointment, suffering setbacks like a major fire in December 2022 that caused a complete power outage, halting production indefinitely. Shell has confirmed no plans to build another Prelude, opting instead for smaller, more manageable facilities.