Load Profile Calculator

Calculate power requirements, solar panels, and battery capacity for off-grid solar systems

System Configuration

Future Proofing Factor (%) - Extra capacity for expansion

Battery Autonomy (days) - Days of backup power

Peak Sun Hours per Day - Select your NZ region

System Efficiency (%) - Inverter & wiring losses

Quick Add Common Appliances

Add appliances and click "Calculate Requirements" to see results

Load Profile Calculator for Off-Grid Solar Design