Solar Sizing & Naira Cost Calculator
Configure your appliances below to calculate exact running load, battery storage, solar array size, and real turnkey installation budgets across Nigeria.
Interactive Solar Load & Cost Calculator
Select your household or office appliances to instantly calculate the required inverter size, lithium battery bank, solar panels, and estimated budget.
1. Select Your Appliances
Add or adjust quantitiesAffects peak sun hours (5.3 PSH) and a ×1 regional cost adjustment (baseline market).
Keep these adjacent — that is standard practice and keeps cable size sane.
2. Recommended System Specifications
Calculated for 24/7 reliability in IbadanWhen your inverter refrigerator kicks in, it briefly draws far more than its running watts. Any installer you hire must confirm their inverter's surge rating covers this, not just the running load.
Within the 100A continuous limit of common lithium BMS units. Confirm the datasheet figure anyway — continuous and peak BMS ratings are often quoted interchangeably by vendors.
Sized to satisfy both a maximum 2% voltage drop and the cable's current-carrying capacity, plus a practical minimum for battery circuits. If an installer proposes thinner cable than this, ask which constraint they think does not apply.
Includes Inverter, Lithium Battery, Panels, Mounting Racks, Breakers, Cables & Professional Installation.
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How Solar System Sizing Works in Nigeria
Sizing a solar power system in Nigeria requires careful balance between your instantaneous peak wattage (which determines your Inverter size), your daily energy consumption in Watt-hours (which dictates your Battery storage), and your sunlight recharge capacity (which dictates your Solar PV panel array).
Inverters convert DC battery power into 220V AC household electricity. We factor in a 25% safety surge headroom so inductive motor starts (like refrigerators and AC compressors) do not trip the inverter into overload.
Lithium LiFePO4 batteries allow an 80% to 90% Depth of Discharge (DoD) with 6,000 cycles (10-15 years). Traditional Tubular Lead-Acid batteries only permit 50% DoD and last 2 to 3 years under heavy daily grid blackouts.
South-West Nigeria (Ibadan, Lagos, Ogun) receives an average of 5.0 to 5.4 peak sun hours daily, while Abuja and the North reach 5.8 to 6.2 hours. An undersized panel array will fail to fully recharge your batteries before dusk.
Next Steps After Calculating Your Load
- Audit your appliances: Replace old incandescent bulbs with 7W-9W LEDs and ensure your air conditioner uses DC inverter compressor technology.
- Get a physical site audit: Have a certified installer inspect your roof angle, shadow obstructions, and distribution board (DB) wiring.
- Request quotes: Connect with vetted installers through our network to compare hardware warranties and labor fees.