Ocean currents: Overview
Rivers in the sea, driven by wind and saltiness
What this tile covers Steady flows driven by wind and by differences in sea temperature and saltiness. Share of use 0% share of world energy supply (2024)Share of world total energy supply, 2024 (latest year where noted). Denominator is the Energy Institute Statistical Review 2025 total of 592.2 EJ (physical energy content method). Flows EI omits (traditional biomass via WBA, solar and geothermal heat, food energy) are set against the same 592.2 EJ, so shares sum to slightly more than 100%. Ocean-current turbines are at prototype stage with no measurable output; tidal-stream devices are counted under Tides. Source: Renewables 2025 Global Status Report: Ocean power, REN21.
Key facts
| Origin | Indirect solar |
| Renewable | Yes |
Included from the reference tables
- Ocean currents
Also in Solar-derived flows
Sun SunlightWd WindH2O Water cycleWv Ocean wavesOT Ocean thermal gradientSal Salinity gradientBm BiomassAmb Ambient heatMu Muscle powerExplore paths from here
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