TECH
Floating tidal and wave systems capture power from ocean motion
New platforms turn currents and waves into reliable energy streams
Unlike wind or solar, the ocean never stops moving. Floating tidal and wave energy platforms aim to turn that constant motion into clean, predictable power. Anchored in coastal currents or placed in wave-heavy waters, these systems convert marine forces into electricity for nearby grids.
Firms and researchers are trialing new designs that highlight growing promise:
Tidal turbines: Orbital Marine Power’s O2 floating turbine, anchored off Orkney, Scotland, generates about 2 MW—enough for 2,000 homes—and can be towed for maintenance.
Wave converters: Buoyant arms and pontoons rise and fall with waves, driving hydraulic or linear generators.
Hybrid systems: Startups like Sustainable Marine and others are testing modular floatable tidal platforms designed for easy tow-to-port servicing and long operational life.
The MeyGen tidal project in Scotland has run underwater turbines continuously for 6+ years, powering ~7,000 homes and proving long-term operation viability.
And that’s not all: smart sensors now predict ocean turbulence to protect devices during storms, while durable materials and towing-enabled designs slash maintenance costs. With growing government support, floating tidal and wave energy is emerging as a steady contributor to The Floating Economy.