Hydropower Calculator
Estimate electricity generation from a hydropower installation based on water flow rate and head height.
m3/s
meters
%
%
Power Output
1,250.8 kW
Annual Energy9,861 MWh
Homes Powered939 homes
CO2 Avoided4,115 metric tons
Power Output vs Water Flow Rate
How to Calculate Hydropower Output
Hydropower converts the potential energy of falling water into electricity.
Formula
Power (kW) = Flow Rate (m3/s) * Head (m) * 9.81 * Efficiency
Annual Energy = Power * 8,760 hours * Availability Factor
Example Calculation
A hydropower site with 5 m3/s flow, 30m head, 85% turbine efficiency, 90% availability.
- 01Power: 5 * 30 * 9.81 * 0.85 = 1,250.8 kW
- 02Annual energy: 1,250.8 * 8,760 * 0.90 / 1,000 = 9,857 MWh
- 03Homes powered: 9,857 / 10.5 = 939 homes