Description

This tool enables users to estimate the average yearly electricity generation capability (i.e. energy yield) of their particular photovoltaic (PV) system by filling in some basic information relating to the location and orientation of the solar panels.

The estimate is based on historical solar irradiance figures from 18 NIWA climate zones.

System losses due to panel soiling (3%), cabling (best practice), inverter inefficiencies (6%), temperature correction (varies according to AS4509.2) and module mismatch (2%) are applied.