Shore power retrofits drag on for months while ships burn diesel at berth, but UK consortium Elire Maritime just cleared trials on a game-changing workaround. Their floating hydrogen platform delivers clean electricity directly to docked vessels without requiring ports to tear up infrastructure or wait years for grid upgrades.
Platform Delivers Serious Power Without the Concrete
Three hexagonal modules pack 5 MW of continuous clean power into a 1,200-square-meter floating footprint.
The system centers on 1.3-MW modular hydrogen fuel cells that convert stored hydrogen into electricity, with water as the only byproduct. A 45-MWh onboard battery bank charges continuously, then discharges rapidly when ships connect. At full capacity, the platform delivers 91 MWh per week—enough juice for mid-size cruise ships. An onboard solar array adds another 146 kW, while hydrogen resupply vessels visit roughly twice weekly.
Real-World Impact Hits Where It Counts
The platform cuts port emissions by 77% compared to diesel generators, eliminating 47 tonnes of CO2 per ship weekly.
Beyond carbon reduction, the system eliminates particulate pollution from auxiliary engines—pollutants that compromise air quality in surrounding communities. Rux Energy UK’s nanoporous hydrogen storage operates at low pressure, avoiding the safety headaches of high-pressure tank systems. University of Strathclyde stress-tested the design in wave tanks, while Schneider Electric verified that the electrical architecture can run completely off-grid.
The Price Premium Reality Check
Hydrogen-generated electricity costs £0.25–£0.50 per kWh versus £0.15–£0.25 for grid power—roughly double to triple the price.
That’s the trade-off for mobility and speed. While traditional shore-power installations require months of permitting and construction, this platform can deploy wherever ports need it most. The consortium argues this flexibility matters as shipping routes evolve and carbon regulations tighten. Early-stage talks are underway with major ports in London, Singapore, Hamburg, Brisbane, and Riga.
Think of it as maritime infrastructure that moves like an Uber—more expensive per ride, but available exactly when and where you need it. For an industry racing against emissions deadlines and fuel efficiency challenges, that convenience might justify the premium.
