Solar & Battery Sizing Panelload-based system estimator
LOCATION

Size your system from what you actually run

Add the appliances in your home, how many of each, and how long they run. This panel works out your peak power, daily energy use, and the inverter, battery and panel setup to cover it.

LOAD BUILDER

0 appliances
No appliances added yet. Pick one above, or add a custom one, to start sizing your system.
motor / compressor load — starting surge included in peak power    steady load
"On backup" marks appliances that must stay powered during an outage — this sets your battery size.

SYSTEM READOUT

LOAD PROFILE

Peak power 0W
Average load 0W
Daily energy 0.0kWh/day

BACKUP SETTINGS

Backup time 6hrs
Load on backup 0W

RECOMMENDED SYSTEM

—kVA
Inverter size
0capacity
—kWh
Battery bank (usable)
—kWp
PV array

SEND THIS ESTIMATE

By sending, you'll get your inverter, battery and PV recommendation on WhatsApp, and our team will follow up to help you act on it. Prefer to talk now? Chat with us directly on WhatsApp.

BUDGET ESTIMATE

₦
₦
₦
%
%
%
Rates default to ballpark 2026 Lagos street pricing for standalone hardware and move with the naira–dollar rate — replace them with your supplier's actual quotes for a real budget. Lead-acid halves the ₦/kWh rate but assumes 50% depth of discharge against lithium's 80%, so switching the toggle also resizes the battery bank in the readout above.
Inverter — 0 kVA₦0
Battery bank — 0 kWh₦0
Solar panels — 0 kWp₦0
Hardware subtotal₦0
Balance of system₦0
Installation / labour₦0
Contingency₦0
₦0
Estimated total system budget
Assumptions — Starting surge included once, for the single largest motor/compressor load, at its typical LRA multiple. Battery sizing uses 80% depth of discharge and 90% inverter round-trip efficiency. PV array assumes 75% system efficiency (wiring, temperature, inverter losses) against the peak sun hours for the selected location, sized with 545W panels. Inverter is rounded up to the nearest common size at 0.8 power factor plus 20% headroom. These are first-pass estimates for planning — a site survey adjusts for shading, roof area, and grid-tie or off-grid configuration.