Three Phase Power Brisbane

Three Phase Installations and Upgrades

At Precision Electrical & Air, we install three phase power for Brisbane homes, workshops, and commercial properties. Whether you’re upgrading to support solar, EV charging, ducted air conditioning, or heavy machinery, we handle everything from Energex paperwork to final testing.

Three phase power delivers electricity through three wires instead of one, effectively tripling your property’s electrical capacity. It’s increasingly common in Brisbane as homes add solar systems, electric vehicles, and modern appliances that single-phase simply can’t support.

Three Phase for Homes

More Brisbane homeowners are upgrading to three phase than ever before. Here’s why:

• You want a fast EV charger: A 22kW three-phase charger fills your battery 3x faster than a standard 7kW single-phase charger. If you’re serious about electric vehicles, three-phase makes daily charging practical.
• Your solar system is larger than 5kW: Energex requires three-phase supply for most solar systems above 5kW. It also allows balanced export across phases, maximising your feed-in credits.
• You’re installing ducted air conditioning: Large ducted systems (14kW+) often require three-phase power to start and run without voltage drop. If you already have split systems and want to add ducted, three-phase prevents your AC overloading.
• You’re renovating with all-electric appliances: Induction cooktops, electric ovens, heat pump hot water, and pool heating add up quickly. Three-phase gives your home headroom for current and future appliances.
• Your electrician says you’re “maxed out”: If your switchboard has no spare capacity and your supply can’t handle more load, a standard switchboard upgrade won’t help. You need more supply — that’s what three-phase provides.

→ Read our guide: Do You Need Three-Phase Power at Home?

Three Phase for Businesses

Commercial and industrial properties often need three-phase from day one. We install and upgrade three-phase systems for:

• Commercial kitchens: Cafes, restaurants, bakeries, and food production facilities running multiple induction cooktops, combi ovens, commercial dishwashers, and exhaust systems simultaneously.
• Workshops and manufacturing: Welders, lathes, compressors, CNC machines, and spray booths. Three-phase motors run more efficiently and last longer than single-phase equivalents.
• Warehouses and distribution: Loading dock equipment, refrigeration, and high-bay lighting across large facilities.
• Multi-unit complexes: Body corporates upgrading common area supply for EV charging infrastructure or commercial sized air conditioning.

→ See our commercial electrical services

Professional Three Phase Installation Services

• 1. Site assessment: We inspect your current switchboard, metering, and supply. We discuss your current needs and future plans.
• 2. Quote and recommendation: You get a fixed-price quote with clear scope. If three-phase isn’t necessary, we’ll tell you.
• 3. Energex application: We submit all paperwork to Energex and coordinate approval. This typically takes 5-10 business days.
• 4. Installation: We install your new three-phase switchboard, connect cabling, and complete all wiring. Installation takes 4-8 hours — you’ll be without power during this time.
• 5. Metering and handover: Energex installs your new three-phase meter. We test everything and provide your compliance certificate.

Total timeline: 2-4 weeks from enquiry to completion.

Whether you’re upgrading an older property or building from scratch, we provide turnkey solutions that support today’s power-hungry technologies.