How accurate are these calculations?

Formulas adhere strictly to industry engineering and trade handbook standards. Always allow safety margins for critical real-world installations.

Does this tool transmit any personal or project data?

No. All calculations run strictly client-side inside your browser. No data ever leaves your computer.

Is my data uploaded anywhere?

No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

Does it work on a phone?

Yes. The layout adapts to small screens and needs no app or signup.

Solar Water Pumping & Irrigation Sizing Calculator

Calculate solar PV array wattage (W) and pump flow rate (GPM) for off-grid agricultural livestock watering and drip irrigation based on dynamic head.

100% free
Private in browser
No signup
No watermarks

Daily Water Volume Needed (Gallons/day)

Total Dynamic Head TDH (Elevation Lift + Friction in Feet)

Average Peak Solar Insolation Hours (Hours/day)

Solar Submersible Pump Efficiency (%: typically 40-50%)

Recommended Solar PV Array Size (Watts STC)

859

Required Solar Peak Flow Rate (GPM)

9.1

Hydraulic Energy Required (Watt-Hours/day)

3780

Water Delivered During Sun Hours (Gallons/hr)

546

Rate this tool

Be the first to rate — helps others and improves this page.

About Solar Water Pumping & Irrigation Sizing Calculator

Calculate solar PV array wattage (W) and pump flow rate (GPM) for off-grid agricultural livestock watering and drip irrigation based on dynamic head. You get Recommended Solar PV Array Size, Required Solar Peak Flow Rate and Hydraulic Energy Required straight away. Everything runs in your browser, so your data never leaves your device.

How to use Solar Water Pumping & Irrigation Sizing Calculator

Enter your specific project and environment input parameters
Review the computed values, conversions, and ratings in real-time
Adjust variables to simulate different scenarios and tolerances

Key features

Instant dynamic client-side calculations
Interactive sliders and numeric inputs
Industrial and engineering formulas validated against standards
100% private and offline in-browser execution

Frequently asked questions

How accurate are these calculations?: Formulas adhere strictly to industry engineering and trade handbook standards. Always allow safety margins for critical real-world installations.
Does this tool transmit any personal or project data?: No. All calculations run strictly client-side inside your browser. No data ever leaves your computer.
What does the Solar Water Pumping & Irrigation Sizing Calculator give me?: It works out Recommended Solar PV Array Size, Required Solar Peak Flow Rate, Hydraulic Energy Required and Water Delivered During Sun Hours, updating live as you change the inputs.
Is my data uploaded anywhere?: No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
Does it work on a phone?: Yes. The layout adapts to small screens and needs no app or signup.

Related In-Depth Guides

Learn practical workflows, real-world examples, and expert tips in our comprehensive guides:

Home Renovation & DIY · 8 min read