Solar System Calculator

🔌 Load & Energy Calculator

AppliancePower (W)UnitsHours/dayStartup(W)Energy (Wh/day)

Peak Sun Hours (PSH / EPSH)

Autonomy Days

Depth of Discharge (%)

System Voltage (V)

Panel Wattage (Wp)

Derating Factor (losses)

Inverter Efficiency (%)

Battery Efficiency (%)

Temperature loss (℃ from STC)

Temp coefficient (%/℃)

Total Energy (AC load): - Wh/day

Energy after inverter (DC from battery): - Wh/day

Required PV energy (after derating): - Wh/day

PV Array Size (STC): - Wp

Number of Panels (550 Wp each): -

Battery Capacity (usable Wh): - Wh

Battery Nominal Capacity (C-rate): - Wh

Battery Ah @ system voltage: - Ah

Inverter Continuous (VA/W): - W

Inverter Surge (peak): - W

Estimated backup runtime (full battery): - hours

Total System Cost (₦): -

Component	Cost (₦)

Coming Soon: Grants, Tax Breaks, and Subsidy Programs tailored to Nigerian businesses and households.