Peak Sun Hours
Peak Sun Hours expresses the equivalent full-sun hours available for daily energy production.
Solar Energy Calculator
Estimate preliminary PV array size, panel count, inverter capacity, and off-grid battery size.
All Tools- Daily Energy
- 20.0 kWh/day
- Required PV Capacity
- 5.0 kW
- Panel Count
- 10 pcs
- Installed PV Capacity
- 5.5 kW
- Estimated Inverter Capacity
- 6.6 kW
- Battery Energy
- 27.8 kWh
- Battery Capacity Ah
- 578.7 Ah
This tool is only for preliminary estimation. Final design depends on location, irradiation data, orientation, shading, temperature, inverter specifications, battery chemistry, and local design rules.
System Loss
System loss covers practical losses from wiring, inverter, temperature, dust, mismatch, and operation.
On-grid and Off-grid
On-grid systems focus on PV and inverter sizing; off-grid systems also require battery backup estimation.
Battery DoD
Depth of Discharge defines how much of nominal battery energy is intended to be usable.