Meta Invests Heavily in Underwater Infrastructure to Support AI and Data Operations

Meta announced the Petal subsea cable project connecting the U.S. and France with unprecedented petabit-scale capacity, representing one of over 20 submarine cable investments the company has made across six continents. The Petal cable will deliver 1 petabit per second using innovative two-core fiber technology, enabling massive data transfer capabilities needed for AI applications and global services. Meta's seafloor infrastructure network, including the massive Project Waterworth spanning over 31,000 miles across multiple continents, underpins the company's growing AI product suite and connectivity demands.
Meta's Petal cable represents a technological leap in submarine infrastructure design. By employing dual-core fiber technology, the system achieves double the data transmission capacity of existing transoceanic cables without proportionally increasing power consumption or physical footprint. This engineering advance directly supports Meta's expanding artificial intelligence offerings, which require massive data movement across global networks to function effectively.
The company's broader seafloor strategy reflects a shift toward vertical integration in critical infrastructure. While Meta historically partnered with telecommunications firms and competitors on cable projects, it is increasingly funding and controlling these systems outright—Waterworth will be entirely owned by Meta. This approach, though expensive, grants the company greater autonomy over connectivity vital to its AI and user-facing services.
Meta's underwater infrastructure investments could reshape global data connectivity by concentrating control of critical transoceanic pathways within a single corporation. Users worldwide may experience faster, more reliable service if these cables successfully meet capacity demands. However, this infrastructure concentration could affect pricing and access in developing regions, while the environmental impacts of laying cables across seafloor ecosystems remain understudied. Regulators may face new questions about corporate control over essential digital infrastructure.