💧 Renewable Energy
Hydroelectric Power Calculator
Calculate power output, energy, and efficiency for hydroelectric systems.
🌊 Water Flow & Head
Flow Rate
m³/s
Volume of water flowing per second
Head Height
m
Vertical drop distance
⚙️ System Efficiency
Turbine Efficiency
%
Pelton: 80-90%, Francis: 85-95%, Kaplan: 80-90%
Turbine Type
Pelton: high head, low flow
Generator Efficiency
%
Typical: 90-98%
⏱️ Operation
Operating Hours
h/day
Days Per Year
Power 0
Power Output
0 kW
electrical power
Water Power 0 kW
Electrical Power 0 kW
Daily Energy 0 kWh
Annual Energy 0 MWh

📊 Hydro Power Details

Parameter Value Unit

How the formula works

P = ρ × g × Q × H × η  |  where ρ = 1000 kg/m³, g = 9.81 m/s²
  • P = Power Output (Watts)
  • ρ = Density of water (1000 kg/m³)
  • g = Gravity (9.81 m/s²)
  • Q = Flow Rate (m³/s)
  • H = Head Height (m)
  • η = Total Efficiency (Turbine × Generator)
  • Water Power = ρ × g × Q × H (ideal, before losses)
  • Electrical Power = Water Power × Turbine Efficiency × Generator Efficiency
  • Annual Energy = Electrical Power × Hours × Days (kWh → MWh)
  • Turbine Types: Pelton (high head), Francis (medium), Kaplan (low head)