Unlock the potential of water power with our easy-to-use Hydroelectric Power Calculator. Quickly estimate the power output of a hydroelectric system (in kW) by inputting net head, flow rate, and overall efficiency. Ideal for design, analysis, and educational purposes in renewable energy projects.
Formula:
Hydroelectric Power Formula
The power generated by a hydroelectric system can be calculated using the following formula, converting the result to kilowatts (kW):
P(kW) = (ρ × g × H × Q × η) / 1000
- P(kW): Power output in kilowatts
- ρ (rho): Density of water (approximately 1000 kg/m3)
- g: Acceleration due to gravity (approximately 9.81 m/s2)
- H: Net Head (vertical distance water falls) in meters
- Q: Volumetric Flow Rate (volume of water per unit time) in cubic meters per second (m3/s)
- η (eta): Overall Turbine-Generator Efficiency (as a decimal, e.g., 0.85 for 85%)
This formula is fundamental for designing and evaluating hydroelectric projects, helping to determine the potential electrical power generated from the kinetic and potential energy of moving water.