Hydroelectric power
Hydroelectric power: use flow rate, net head, efficiency. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
Power = density ×9.80665 × flow × head × efficiency/100
Variables & units
- Flow rate
- m³/s · minimum 0, maximum 1000000000000
- Net head
- m · minimum 0, maximum 1000000000000
- Efficiency
- % · minimum 0, maximum 100
- Water density
- kg/m³ · minimum 0.000001, maximum 1000000000000
Worked example
Use the example inputs to explore this model; the solution shows each supplied quantity.
Assumptions
Uses supplied net head and efficiency; ignores changes in flow and detailed hydraulic design.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
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