AgriSolar sizing tool

Off-Grid Solar Calculator

Estimate your daily energy use and get an indicative solar array, inverter and battery size for your home, bach or farm.

  1. 1Select appliances
  2. 2Fine-tune usage
  3. 3See your system
1

Select appliances

Add the appliances and equipment you expect to run. Use + and − to set quantities.

2

Usage details

Adjust quantity, running watts and hours per day. Cycling loads like fridges already allow for typical on/off cycling.

Connected load0.0 kW
Average energy use0.0 kWh/day
3

System assumptions

Optional: tune for your site. Defaults suit most NZ installs.
Share of connected load expected at the same time.
Days the battery should carry you with little sun.
Effective peak sun hours in the worst month.
Typically 80–90% for lithium (LFP).
Allows for heat, wiring and conversion losses.
Three phase is needed for three-phase motors.
Your systemAdd appliances
View results