On our homepage, you’ll find an easy-to-use tool that helps you select and size your solar pumping system. To use the tool effectively, you’ll need a few important details:
Choose your preferred "unit of measurement" and enter your "system location":
- Start by selecting either "metric units" (meters and liters/day) or "US units" (feet and gallons/day).
- In the “Search for location” field, type the city or town where the solar pump system will be installed.
Enter your "Vertical Lift":
- First, measure the vertical distance between the water level at the source (A) and the highest outlet point of the pipe (B).
If you're using a deep well, use the water level – not the total well depth.
- Then, enter this value in the “Vertical Lift” field (you can either move the slider or type the number directly):
Enter the "Pipe Length":
- In the “Pipe Length” field, enter the total length of pipe from the pump to the outlet
(again, you can use the slider or enter the value directly).
Select if pressure is needed:
- In the “Sprinkler” field, tick this option if you’re using sprinklers or need pressure at the pipe’s end. Leave it unticked if you're simply filling a tank.
Choose the "PV module"
Under the “PV module” field, you can either use the "default module" or enter your "own" module’s specifications:
- "Default Module":
- For the S1-200, the tool uses a 100 W module (Ref. LC100-M36).
- For the S1-700, it uses a 330 W module (Ref. LC330-P72).
- "Custom Module":
If you choose this option, you’ll need to enter your module’s electrical data: Pmax, Vmp, Voc, Isc, Cpmax, Cvoc, Cisc, Umax. You can find this data on the datasheet provided by your module manufacturer.
Make sure the data is accurate — incorrect values will result in incorrect sizing.
Click “Show Results” and review the results:
- Once all fields are completed, click the “Show Results” button.
- The tool will display a list with the following details:
- "Pump System" - Either S1-200 or S1-700 system.
- "PV Generator" - The recommended solar generator size, including the number of modules in series and in parallel.
For example:- 400 Wp [2x2 LC100-M36] means that 400W is the total power, and the array must be 2 modules in series, and 2 strings in parallel.
- 1,320 Wp [4x1 LC330-P72] means that 1320W is the total power, and the array must be 4 modules in series, and 1 string in parallel.
- "Water per Day" - The estimated daily water output based on your data.
Find the most efficient system, view and compare performance charts
- The tool highlights the most efficient solution with a star symbol.
- You can also review the other listed options and compare them based on your water needs.
For each selected system, the tool provides performance graphs of "System Output per Month" and "System Output per Hour - Yearly average"
Request a quote:
To get a quote for your selected S1 system, go to the “Where to Buy” tab.
There you’ll find contact details for your nearest distributor.
