If you live in Perth, chances are you’ve had a look at your roof and wondered if solar panels would be worth the investment. Maybe your neighbour just got a new system installed or you’ve seen ads promising massive savings. But is it all it’s cracked up to be? Or is sticking with the power company still the safer move?
As local electricians working in homes across Perth every day, we hear this question all the time. And the truth is, the answer depends on a few key things your home, your lifestyle, and your budget.
Let’s break it down so you can figure out what actually makes sense for you in 2025.
What Perth’s Energy Market Looks Like Right Now
Here in WA, most homes are connected to the South West Interconnected System. It’s the main electricity network powering Perth and surrounding regions. While some renewable energy sources are being fed into the grid, it still mostly runs on gas and coal.
That’s why solar has become such a hot topic. It gives homeowners more control and reduces strain on the system. But it’s not a one-size-fits-all solution.
Why So Many Perth Homes Are Going Solar
Perth is perfect for solar
Perth gets more sunshine than just about any other capital city in Australia. On average, you’re looking at around eight hours of sun a day, which makes solar power systems much more effective here than in places like Melbourne or Hobart.
You can slash your bills
With solar, you generate your own electricity during the day. If you’re home to use it—say for running the aircon, doing laundry, or charging your devices—you’ll rely far less on the grid. Even if you’re not home all day, you can send excess power back into the grid and get a small credit on your bill.
The government still offers incentives
As of 2025, the federal scheme that offers small-scale technology certificates is still running. These certificates cut the upfront cost of a new solar system. Some local councils in Perth also offer rebates or zero-interest finance to help homeowners get set up.
It’s better for the environment
Switching to solar reduces your carbon footprint. If sustainability is important to you—or you just want to be less reliant on fossil fuels—solar is one of the best steps you can take.
When Grid Power Still Makes More Sense
The upfront cost can be steep
Even with rebates, you’re still looking at four to six grand for a decent system. Add a battery and it can push past ten grand pretty easily. If your power bills are low or your roof doesn’t get much sunlight, the payback period could be longer than expected.
Solar systems do need maintenance
It’s not a huge job, but solar panels should be cleaned once or twice a year and checked every few years. Inverters can wear out. Birds can build nests under panels. We get a lot of service calls for things people didn’t expect.
With grid power, you flick a switch and it just works.
You might not stay in the home long enough
If you’re renting or thinking about selling in the next year or two, it might not be worth the investment. Solar takes time to pay itself off, and you might not be around to enjoy the full benefit.
What About Adding a Battery?
Batteries let you store the energy your panels create during the day and use it at night. They are a great option for people who want full energy independence or who often lose power during storms. But right now, they’re still pretty pricey.
Most homeowners in Perth start with just solar panels and see how much they save. If it makes sense later on, they look into adding a battery once prices come down further.
Quick Snapshot: Solar vs Grid
| Feature | Solar Power | Grid Power |
|---|---|---|
| Upfront cost | From $4000 after rebates | No upfront cost |
| Ongoing cost | Low once installed | Ongoing bills each quarter |
| Best suited for | Sunny homes you own long term | Any home including rentals |
| Maintenance | Low but not zero | None required |
| Reliability | Daytime or with battery | Always on |
| Green impact | Clean energy | Mostly fossil fuels |
| Rebates available | Yes | No |
So What Should You Do?
If you tick most of these boxes, solar might be the way to go:
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You own your home and plan to stay for a few years
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Your roof gets lots of direct sun
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You use a fair bit of power during the day
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You want to save money and reduce your footprint
On the other hand, sticking with the grid might suit you better if:
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You’re renting or plan to sell soon
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Your roof is shaded or small
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You’re not keen on spending thousands upfront
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You’re happy with your current bills and usage
Honest Advice from Local Perth Electricians
At BMS Air, we work with trusted sparkies who know Perth homes inside and out. Whether you’re curious about installing solar or just want help making your home more energy efficient, we can connect you with someone who’ll give it to you straight.
No pressure. No upsells. Just honest advice based on your home and your budget.
Want to Chat About Your Options?
Book a visit from a licensed electrician who understands solar and grid power. We’ll take a look at your setup and walk you through the numbers so you can make a smart choice.
Send us a message or give us a buzz. Let’s figure out what’s best for your home in 2025.
