What is 3-phase power? And how do I know if my house needs it?
- Written by Asma Aziz, Senior Lecturer in Power Engineering, Edith Cowan University
If you’re building, renovating or planning to install a solar battery, your builder or installer might ask whether you’ve considered upgrading from single-phase to three-phase power. This upgrade often comes with a hefty price tag.
So what’s the difference between single-phase and three-phase power, and which one will you need?





