Determine the average yearly electricity generation capability (i.e. energy yield) of your particular photovoltaic (PV) system by filling in the boxes below.
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 AS 4509.2) and module mismatch (2%) are applied.
For more detailed reports and calculations for your specific situation, see: