3 Phase Upgrades Done Properly
A single phase supply has its limits. If you are running heavy machinery, high-capacity air conditioning, EV chargers, battery storage, or commercial equipment, there is a good chance your current power setup cannot keep up. At JRV, we manage the full process of upgrading your property to 3 phase power, from the SA Power Networks application through to the switchboard install, testing, and sign-off. No subcontracting, no handoffs, no surprises.
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Inspect
Upgrade
Test
Why Would I Need 3 Phase Power?
Single phase power works fine for most standard home use. But when you start adding high-draw equipment, running a business from your property, or planning for future upgrades, the limits become obvious fast. 3 phase power distributes the load across three circuits, which means larger systems run more efficiently, less energy is wasted, and your electrical infrastructure is not being pushed beyond what it was built for. For Adelaide homes and businesses with growing power demands, it is often the upgrade that makes everything work properly.
Signs You Need a 3 Phase Upgrade
Most property owners do not think about their power supply until it becomes a problem. If any of these sound familiar, it is worth getting it assessed.
You are adding a large solar system or battery storage
Setup combining solar with a large battery like a Tesla Powerwall, often perform better, and sometimes can only be connected, on a 3 phase supply. If your solar installer has flagged this, we can sort it.
Your inverter requires 3 phase connection
Many modern solar inverters, particularly higher capacity models, are designed for 3 phase. If yours needs it, your switchboard and supply need to match.
You are running workshop or trade equipment
Lathes, welders, compressors, CNC machines, and other heavy tools often require 3 phase power to run at full capacity or at all.
Your single phase circuits keep tripping
If your breakers are tripping when heavy equipment or the solar system kicks in, you are asking more from your supply than it can give.
You are installing a high-capacity EV charger
Fast EV chargers draw significant power. 3 phase handles the load cleanly and keeps your other circuits running without issue.
You are developing or subdividing
New builds and developments often require 3 phase infrastructure from the ground up. We handle the full coordination with SA Power Networks.
How It Works With JRV
Tell Us What You Need
Get in touch with a few details about your property, your equipment, and what you are trying to run. Whether you have been told by your solar installer that you need 3 phase, or you are planning ahead for a workshop or EV setup, we will work out exactly what is involved for your situation.
Assessment, Application & Quote
We assess your existing supply and switchboard, advise on what is needed, handle the SA Power Networks application where required, and quote the full job upfront. You will know exactly what it costs before any work starts.
COMPANY
JRV in Numbers
3,000+
Projects Completed
15+
Years of Industrial Experience
100%
Customer Satisfaction
100%
Compliance and Safety
A Local Adelaide Team You Can Rely On
DON'T HEAR IT FROM US
Hear It From Our Clients
Jeff T.
We were recommended JRV Electrical for our kitchen and laundry renovations. We were extremely impressed with their reliability, quality of work and promptness from attending on site to provide a quote through to completion of their work. I have no hesitation in recommending JRV Electrical and will seek their services for any future electrical work.
Hayley B.
Josh and the team have been at our house countless times over the last year, completing all our electrical work for our renovations. New kitchen, new down lights, installing ceiling fans, pool equipment, you name it! The boys have come up with any solution to a problem and always get the work done to an extremely high standard and quickly, leaving no mess behind! They are a bunch of legends, and we recommend them to anyone and everyone.
Adam K.
Had Josh and the team do multiple projects around my house, and couldn't recommend a better company. They worked within the time frame I needed. Worked very efficiently and just did an amazing job. Will definitely use JRV again for future projects.
Laura V.
Josh did a great job installing new LED down lights throughout our home, pendants in the kitchen and new exhaust lights in our bathrooms. Very clean work, quick and reliable. We will be using them again for all our electrical needs! Highly recommend!!
