How Much Can You Save With Solar Panels in Perth? (Real Numbers & Real Talk)

Right, let’s not beat around the bush — electricity prices in Perth are cooked. Ours were climbing faster than my toddler up the kitchen bench. A few mates told me about getting solar, and I figured I’d finally look into it. What started as a quick Google search turned into a bit of a rabbit hole, but now that we’ve had solar for about 8 months, I can tell you — it’s been absolutely worth it.

So if you’re wondering how much you can actually save with solar in Perth (not just sales pitch numbers), here’s the honest truth based on personal experience, a bit of math, and chats with a few locals.

Is Solar Even Worth It in Perth?

Short answer: yes. Longer answer? Still yes — but it depends on a few things.

Here in Perth, we’re blessed with more sunshine than most of the country. According to some data I found (and yeah, I double-checked it), Perth averages about 8.8 hours of sunlight per day. That’s perfect solar territory. A properly-sized solar panel system can generate way more power than your household actually uses — especially if you’re smart about your appliances.

My neighbour Darren, who lives two streets over in Canning Vale, installed a 6.6kW system last year. His bills went from $580 a quarter down to under $200. He even said he was “annoyed he didn’t do it five years ago.”

So… How Much Can You Save?

Alright, let’s talk actual numbers. Here’s what I saved, roughly:

That’s over $1,000 in annual savings — without even changing our usage habits much.

My system cost $4,700 after rebates (I’ll explain that in a sec). So even with conservative savings, I’ll break even in 4–5 years. After that, it’s pure profit — or rather, pure savings.

System Details (Not Sponsored)

• 6.6kW system (Tier-1 panels)
• Fronius inverter
• Installed by a local Perth-based mob called SunSavvy (not an ad — they were just solid)

They handled everything — from quoting to connecting to Western Power. The panels took one day to install, and I was generating solar within a week.

And yes — they helped apply the federal STC rebate, which knocked off nearly $2,400 from the total cost. That rebate’s still active in 2025, by the way — though it reduces every year, so sooner = better.

Feed-in Tariffs: How It Works in WA

One big thing people get confused about is the feed-in tariff — that’s when your solar system produces more energy than you use, and the extra gets sent back into the grid. The power company pays you a bit for it.

Western Australia uses something called the DEBS (Distributed Energy Buyback Scheme). As of now:

• You get 10c per kWh for energy exported between 3pm and 9pm
• And just 2.5c per kWh at other times

So yeah, the timing matters. We started setting the dishwasher and washing machine on timers to run during the day — especially around 3pm — just to maximise usage and export.

What Affects Your Savings?

• How much power you use during the day (when the panels are active)
• Your system size
• Your roof’s direction & shade
• Your energy habits

If you’re out of the house from 8 to 6 every day and only use power at night, you won’t save as much — unless you get a battery (which is another story and $$$).

What About Maintenance or Issues?

Honestly? Not much so far.

The only “maintenance” I’ve done is hose the panels down once after a sandstorm in October. Some birds like to hang around up there too, but nothing major. The installer offered optional panel cleaning packages, but I skipped it for now.

Inverter’s been running smooth, and I can track everything through their app — it’s like checking your daily steps but for your electricity bill.

Things I Wish I Knew Before Installing

• Not all quotes are equal. Always get at least 3.
• Battery isn’t needed right away. Unless you have $10k spare.
• Some shady installers inflate their “after rebate” price. Ask for a breakdown.
• Always check warranties. Panels (25 years), inverter (10+), install (5 minimum).

Real Perth Stories

Priya from Baldivis:
“We got a 5kW system through a local guy. Total cost was around $4,200 after rebates. Our first bill was just $89! And we use the aircon like it’s going out of style in summer.”

Greg from Joondalup:
“Did mine in 2023. Haven’t paid more than $200 per quarter since. Only regret? Not getting a slightly bigger system.”

Final Thoughts: Should You Go Solar in Perth?

Look — I’m not a solar salesman. I’m just a tired dad who wanted lower bills and a guilt-free way to run the aircon. After going through it myself, I can tell you: solar makes sense in Perth.

We’ve got the sunlight. The rebates are still here. And power prices aren’t dropping anytime soon.

So if you’ve got the upfront cash — or can finance part of it — and you use power during the day, there’s no reason to wait.

📥 Need Help Getting Started?

If you want the exact quote template I used to compare installers — or just want me to email over the contact I used — drop your email below or message me directly.

It’s not a “secret” — I just want more folks to stop overpaying for power when the sun’s right there doing its thing for free.