The below diagram explains the (3) components needed to calculate Total Dynamic Head (TDH), which is required to use this tool. If you want more more detailed information, visit our page Solar Water Pumping Basics.
Elevation Head (vertical distance water flows)
Pressure Head (outlet water pressure, optional)
Friction Loss (total energy lost in pipes)
Step 1 ) Fill out the project location or sun resources information
Step 2) Enter values above to determine Total Dynamic Head (TDH)
Step 3) Enter your desired daily water production (gallons per day)
Step 4) Choose a water pump and array kit that meets your estimated gallons per day requirements.
If additional water production is required, enter a larger desired daily water production value or choose a larger pump and solar array kit.
Diagram for three main components of Total Dynamic Head