Powering AI. Sustaining tomorrow.
Offshore gas and nuclear, powering AI at sea.
Neptune Grid builds semi-submersible platforms that generate their own power — natural gas turbines today, modular nuclear next — and deliver it directly to AI compute offshore.
125 MW
Phase 1 capacity
2 TCF of Gulf of America gas
1.5 GW
Phase 2 capacity
Powered by nuclear
1.15 PUE
Seawater-cooled target
0
Grid interconnection
The approach
AI demand has outrun the grid. The ocean has room.
Onshore data centers wait years for power, land and water. Neptune Grid moves the problem offshore: the platform carries its own generation, its own cooling and its own fiber, and arrives complete.
Power first
Generation is built with the platform, not queued behind an interconnection study.
No land
Offshore siting removes acquisition, zoning and community permitting from the critical path.
Ocean cooling
Seawater is the heat sink. Cooling load drops and water consumption goes to zero.
Replicable hulls
Semi-submersible platforms are a known, buildable class of asset. Each one repeats the last.
Power
Gas now. Nuclear next.
Phase 1 — 125 MW
Natural gas turbines
Powered by 2 TCF of natural gas from the Gulf of America, feeding aeroderivative turbines on the power deck. Island-mode operation — generation, distribution and consumption all on the hull, with no transmission losses and no interconnection queue.
Phase 2 — 1.5 GW
Modular nuclear
1.5 GW of marine small modular reactors adds long-duration, zero-carbon baseload alongside the gas island. Refueling intervals measured in years, ocean heat rejection built in, and a fuel supply immune to commodity swings.
Platform
One hull. Four systems.
Natural gas turbines
High-efficiency aeroderivative turbines fed by offshore associated gas, delivering firm baseload power on deck from day one.
Modular nuclear generation
Marine-qualified small modular reactors phased in alongside the gas island for long-duration, zero-carbon power at sea.
Wholesale colocation
Racks, structured cabling and subsea fiber landing. Tenants bring their own accelerators — no GPU capital on our balance sheet.
Ambient seawater loop
Direct heat rejection to the ocean. No freshwater draw, no evaporative towers, no inland siting constraints.
IP & Experience
Three patents. Proven deployment.
Subsea data center architecture
Patented pressure-balanced hull, cable ingress and cooling designs purpose-built for underwater compute.
Marine power integration
Patented coupling of offshore generation with submerged IT loads, reducing transmission and cooling losses.
Ocean heat rejection
Patented direct seawater cooling systems that eliminate freshwater consumption and evaporative load.
Led by proven industry experts who have deployed real underwater data centers — the same engineering, operations and regulatory experience applied to industrial-scale offshore power.