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1/5/2026FMT Nigeria Team

How to Size a Home Solar System in Nigeria

A simple guide to estimating inverter size, battery capacity, and panel count for homes and small businesses.

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How to Size a Home Solar System in Nigeria

Most people start with appliance count, not kilowatt-hour data. Start by listing your major appliances and expected usage hours. Separate day-load from night-load. Day-load helps you size panels, while night-load helps you size battery storage.

For inverter sizing, calculate your expected peak load and add 20-30% headroom. This supports startup surge from appliances like fridges and pumps.

For battery sizing, prioritize critical loads and desired backup hours. Lithium batteries provide better depth-of-discharge and longer cycle life for daily use.

Panel sizing depends on your daily energy demand and local peak sun hours. Use realistic generation factors and include system losses for wiring, inverter conversion, and temperature.

If you are unsure of your load profile, our team can run a proper site assessment and provide a practical bill of quantities.

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