About PowerFlow Tools

PowerFlow Tools provides solar panel and battery sizing calculators based on established solar energy production formulas. The site focuses on practical system size estimation using daily energy consumption and Peak Sun Hours data.

Our Focus

The purpose of this site is to help users estimate:

• Required solar system size (kW)
• Expected daily energy production (kWh)
• Recommended battery storage capacity (kWh)

All calculations are based on standard solar performance relationships used in residential system design.

How the Calculations Work

Solar sizing is determined using:

System Size (kW) × Peak Sun Hours = Daily Energy Production (kWh)

Battery storage is estimated using:

Daily Energy Use × Backup Duration ÷ Usable Capacity

These formulas are widely used in solar planning and energy modelling.

Educational Purpose

PowerFlow Tools provides planning estimates only. Final system design should consider site-specific factors including:

Panel orientation and tilt
Local climate conditions
Equipment efficiency
Installation standards and compliance requirements

Users should consult qualified professionals before installation decisions.

Related Guides

To understand the methodology behind the calculations, visit:

How Many Solar Panels Do I Need
Solar Battery Sizing Guide
Understanding Peak Sun Hours