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sci.tidal-energy-potential Calculator
Calculates tidal barrage potential energy E = ½ρgAR² per tidal cycle from tidal range R and basin area A. The Rance tidal barrage (France) generates 240 MW average from R = 8 m range — global theoretical tidal power potential is ≈ 3 TW but exploitable resource is < 5% with current technology.
Inputs
A Km2
Two-dimensional surface extent (m²). For complex shapes, break into simpler sub-shapes and sum.
H M
Reference formula or conversion factor shown for context.
Rho Kgm3
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Eta Pct
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Results
energy per tidal cycle (MWh)
Sample size or count used in the calculation.
average power (MW)
The arithmetic mean -- sum divided by count.
total tidal energy per cycle (GJ)
The combined total across all inputs and components.
E_tide = ½ρgAH²/2 per half tide
Reference formula or conversion factor shown for context.
world potential
Sample size or count used in the calculation.
capacity factor
A dimensionless multiplier applied in the calculation.