The Theoretical Power (P) is in proportion to the debit Q (cubic meter) per second (m3/s) or in litres per second (l/s) P=Q.c  with c as the constant.

With P in Watt, Q in m3/s, assuming a stream velocity of 2 knots per hour (3,5 km) and an inlet diameter of 3.000 mm, resulting in:

Q= 1000 x 3,5 x 7,065/3600
Q= 6,868 m3/s
P=1000.cQ
P=1000.9,8Q
P= 67,30 kWh

The water power is shown in a power diagram below. Currently, water power is generated by mechanic energy to be converted into electricity. Because the efficiency of this turbine is less than one, the ultimate generated electric power shall be ca. 60% of the current power. 

The (Tide) Water Power Turbine produces between 250,000 - 350,000 kWh energy in total per year. The power increases or decreases depending on the speed of the current. However, by building a turbine park, this kind of power generation can be multiplied on a large scale basis.

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