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eng.tidal-stream-power Calculator
Calculates tidal stream turbine power output from current velocity, turbine swept area, and water density using the kinetic power formula. Tidal stream power P = 0.5 × ρ × A × Cp × V³ — the Betz limit (59.3%) applies to tidal just as to wind turbines.
Inputs
Current Velocity M S
Speed in a specified direction (m/s). Required for momentum, kinetic energy, and wave calculations.
Turbine Diameter M
Distance across a circle through its centre. Always confirm units match the rest of the calculation.
Cp
Rate of energy transfer (W). P = V×I (electrical). P = F×v (mechanical). 1 horsepower ≈ 746 W.