Green Stack: Tide

To find the theoretical energy of tide on the shore of the Netherlands the following calculations were done:

Barrages
Assume a power density of 30 W/m^2 contributed by a barrage
To calculate the power:
               = 30 W/m^2 * 41500 * 10^6 m^2 * 2 (high/low tide) * 24 hours / 16.5 * 10^6
               = 3.6 kWh/d per person

Tidal Stream Farms
Assume a power density of 2 knots = 60 W/m^2 for tidal stream farms
Calculation:
               = 60 W/m^2 * 41500 * 10^6 m^2 * 24 hours / 16.5 * 10^6
               = 3.6 kWh/d per person

Tidal Lagoons
Assume a power density of 4.5 W/m^2 for tidal lagoons
Calculation:
               = 4.5 W/m^2 * 41500 * 10^6 m^2 * 24 hours / 16.5 * 10^6
               = 0.65 kWh/d per person

Total power = 7.85 kWh/d per person