Technical Guide: Sizing Your Solar Water Pump System
Step-by-step method to calculate pump size, solar array, and storage for off-grid water supply.
Published: March 31, 2026
Sizing a Solar Water Pump: Engineering Precision
Properly sizing a solar water pump ensures reliable water delivery without overspending. At Cylome, our mechanical and electrical engineers use a four-parameter method refined over 15+ years of field deployments.
Step 1: Determine Daily Water Requirement
Calculate total volume needed per day (e.g., 10L/head for livestock × 200 animals = 2,000L). Include safety margin (15–20%).
Step 2: Measure Total Dynamic Head (TDH)
TDH = Static lift + Friction loss + Pressure requirement. For a 60m borehole with 200m of 1.5” pipe, TDH may exceed 75m.
Step 3: Select Pump Type (AC/DC)
Use Cylome’s performance curves: our DC pumps deliver up to 4.5 m³/h at 50m head; AC models reach 12 m³/h at 80m.
Step 4: Size Solar Array
Match panel wattage to pump power (e.g., 1.1kW pump → 1.5kW panels for cloudy-day buffer). All Cylome systems comply with IEC 62253 for electrical safety.
Our factory-direct models include pre-configured MPPT controllers and dry-run protection—eliminating design guesswork. With 24-hour quotations and compatibility with Festo/SMC fittings, integration is seamless.
Avoid Common Mistakes
- Underestimating friction loss in long pipelines
- Oversizing panels without voltage regulation
- Ignoring seasonal sun-angle variations
Leverage Cylome’s engineering support: email sales@cylome.com with your TDH, daily volume, and location for a precise, ready-to-deploy solution.
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