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30 kwh per day

Solar Panels

What Size Solar System Do I Need for 30 kWh Per Day?

A home using 30 kWh per day needs roughly 7 to 11 kW of solar depending on sunshine. See panel counts, inverter and battery options, roof space and how to reduce the size.

October 3, 2026 · 5 min read

Appliance Wattage Guide

  • Refrigerator 150W (1.5 kWh/day)
  • 5,000 BTU Window AC 450W – 500W
  • Starlink Satellite 50W – 75W
  • Microwave Oven 1,000W – 1,500W
  • CPAP Machine 40W – 60W
  • 1/2 HP Water Well Pump 800W – 1,000W

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Calculations provided for preliminary planning purposes only. Always consult a licensed electrician.