Voltage rise calculator
Check voltage rise across your inverter connection.
Calculation scope & engineering review
Uses documented AS/NZS 3008.1.1:2017 and AS/NZS 3008.1.1:2025 source data for supported calculations. Not independently verified by a licensed electrical engineer. Check results against the current published standards before use. New Zealand mode uses the 2017 Australian rating tables with New Zealand ambient conditions. Read assumptions and limitations.
Inverter output
Supply arrangement and inverter rating
Standard
Inverter output
kW calculations use the specified load power factor. A and kVA calculations use worst-case cable impedance for voltage rise.
Design limit
Maximum allowable voltage rise
Voltage rise limit
Default 2% per AS/NZS 4777.1-2024 — adjust if your DNSP specifies a different limit.
When enabled, mark the consumer cable mains segment in the route below. Its rise remains in the physical total but is excluded from the displayed design-limit assessment. Verify the installed control and your network service provider's requirements before applying this treatment.
Cable route
Add 2–5 segments, from inverter to point of supply