Size your solar pumping installation
in a few minutes
Enter your location, water needs and installation details. LE LAB selects a suitable pump, sizes the photovoltaic array and estimates water production throughout the year.
The essential elements of the sizing
A few inputs are enough: LE LAB turns them into a solar pumping solution, from the manufacturers' official curves and your region's solar resource.
A model chosen among the leading brands, based on the exact characteristics of your project.
The photovoltaic power required, the number of panels and their configuration.
A complete view of the installation and its main equipment.
An estimate of the water volume available each month, compared with your needs.
Automatically identified, with the margin you have.
The performance of the selected pump and its operating point.
Pipe diameter, water velocity, pressure and head losses.
The calculations rely on the manufacturers' official curves. 60 countries covered, 156 reference cities for solar data, 6 languages available.
Three pages detail these technical functions: constant-pressure watering, the generator in support of solar pumping and LORENTZ PSk hybrid pumping.
Your sizing in 7 steps
No need to prepare a complex study. LE LAB guides you step by step and only asks for the information needed for the sizing.
Project location
Search for the city closest to the project. Its solar data serves as a reference to calculate the installation's performance throughout the year.
Water use
Select your need: water supply for a village or community, livestock watering, irrigation or a volume you already know.
The rest of the journey adapts automatically to your project.
Water needs
Provide a few details about your use and LE LAB estimates the required daily water volume.
Livestock or irrigation? Also specify the pumping seasonality, all year round or only part of it: the study is aligned with your season.
For a sprinkler, rain gun or pivot, also enter the daily operating time and the pressure required at the delivery point: the study accounts for the flow and pressure to be maintained, as well as the backup source.
For water supply and irrigation, the calculations draw notably on WHO and FAO references.
Water depth
Enter the water depth during pumping.
This is what determines the effort needed to lift the water to the surface.
Water delivery
Specify where the water must be delivered and the length of the pipe.
The delivery head and head losses are taken into account in the sizing.
Installation options
Need backup power? An existing water reserve, or one to size together?
A few options adapt the solution and the diagram to your installation.
Review
All the project information is gathered before the calculation.
Check it, correct it if needed, then get your sizing.
A clear result, organised by topic
Once the calculation is complete, the essential installation data is gathered on a single screen, including the hydraulic analysis of the pipework.
The solution at a glance
Find at a glance the selected pump, the solar array power and the estimated water production.
The installation diagram
Visualise the whole solution, from the photovoltaic array to the water delivery, with the main equipment required.
Month-by-month production
Compare the water need and the estimated production throughout the year. The worst month is automatically identified.
The daily output of a typical day
Choose a month and read the hour-by-hour flow rate for a typical day, calculated on sixteen years of PVGIS solar history, with the peak flow rate and the volume produced.
The pump curves
Consult the manufacturer curves and see the operating point matching your project.
Frequently asked questions
Is the study really free?
Yes. You can carry out a complete sizing for free and without registration.
You directly get the right pump, the solar array sizing, the installation diagram and the month-by-month water production estimate.
If you then wish to receive a quote, simply ask us. The sizing remains without commitment.
What data is the calculation based on?
LE LAB uses the pump manufacturers' official performance curves as well as 16 years of solar resource data to estimate month-by-month production.
The project's hydraulic characteristics, notably the water depth, the delivery head and the head losses, are also taken into account in the sizing.
My city is not in the list, what should I do?
Select the available city that is both closest and most comparable to your project: it serves as the climate reference. Geographic proximity alone is not always enough; altitude and local climate should also be comparable.
LE LAB currently covers 60 countries, through 156 cities. If your country is not yet available, contact us: we can look into adding it.
Which pump brands are offered?
LE LAB is multi-brand and currently integrates LORENTZ and GRUNDFOS.
Each pump is integrated from its manufacturer performance curves in order to select a model suited to the project's characteristics.
What happens once the sizing is complete?
All the results are displayed immediately: selected pump, solar array, installation diagram, month-by-month production, hydraulic analysis and pump curves. Print the project summary, or ask us for a quote.
LE LAB Pro also lets professionals adjust the configuration, generate a complete report and access the technical documentation.
Size your next project with LE LAB
A few minutes are enough to get a complete sizing of your solar pumping installation. Free, no registration and no commitment.