Solar sizing
Preliminary solar-system sizing
Estimate PV-array capacity, battery storage and inverter size using a clearer engineering basis than the previous calculator. This is a planning aid, not a final design.
Load & system inputs
Method
What the calculator considers
PV is sized from daily energy, available solar resource and a performance ratio. Battery capacity uses autonomy, allowable depth of discharge and storage efficiency. Inverter size is based on estimated peak load plus operating margin.
- 550 W planning module size
- 75% overall PV performance ratio
- 80% usable depth of discharge for LiFePO₄ or 50% for lead-acid
- 25% inverter headroom with 0.9 planning power factor
Final equipment selection requires an appliance/load schedule, starting-current review, cable/protection design, roof/ground assessment, shading review and current equipment data.
Preliminary result
Recommended planning envelope
-PV array
-PV modules
-Nominal battery
-Inverter rating
Request a site survey / quotation
After calculating, send the result to the technical team with your contact details.