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  • Level 38, 71 Eagle Street, Brisbane, Queensland, 4000.
  • Solar Panels Sydney, New South Wales 20 Martin Place, Level 10, Sydney, NSW 2000.
  • Solar Panels Perth, Western Australia Level 27, St Martins Tower, 44 St Georges Terrace, Perth, WA 6000.
  • info@smarthousesolar.com.au
  • + 1300 650 747
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⚡ Australia's Trusted Solar Partner

Why Smart House
Solar?

★★★★★ 4.8 Stars · 400+ Queensland Reviews · 2021 & 2022 Award Winner

Smart House Solar is a 2021 & 2022 Product Review Award Winner serving Queensland and New South Wales. Rated 4.8 stars by 400+ customers for quality products, expert installations and prompt after-sales service.

2021 Product Review Award
2022 Product Review Award
SAA Accredited Installers
Proven Quality Products

Quality of products and services are of top-most importance to us. We believe quality can't be compromised at any cost.

Competitive Pricing

We aim to be competitive in our prices for the level of quality we deliver. Quality comes at a cost and there is no substitute for it.

Flexible Finance Options

We have flexible finance options available with $0 upfront — repay from savings on your electricity bills.

Seamless Start To End Process

We offer a seamless experience from consultation to installation — holding your hand at every stage.

Unbeatable After Sales Care

Our dedicated customer service team resolves all after-sales issues promptly — earning us 4.8 stars and two prestigious awards.

Enquire Today

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5kW Solar System on rooftop
The Everyday Sunshine Machine

5kW Solar System —
The Everyday Sunshine Machine

The powerful 5kW solar power system is an ideal residential solar solution for small homeowners in Queensland. Optimal power output is ensured through a high-quality 5kW inverter and 15 Monocrystalline Tier-I solar panels with a 330-watt power output. Our solar experts and SAA-certified technicians install and configure this powerful 5kW solar power system on your rooftop with complete efficiency to ensure seamless power output for a long time. The 5kW solar power system works well in sunshine cities like Brisbane.

A 5kW solar system, just doing its thing, no drama. That's the real charm — steady power, smaller bills, cleaner air. At Smart House Solar, we call it living light. Literally.

5kW
Inverter
15
Tier-I Panels
330W
Per Panel

Let’s choose the most suitable & best solar panel system for your home.!!

Medium to Big Family Home
10.3kW
Solar System
Own This Solar System From Just
$5496*
  • 22 x 475W Tier 1 Solar Panels
  • 8kW Smart Wifi Inverter
  • Fully Installed
Australia’s Most Popular
Standard Family Home
6.6kW
Solar System
Own This Solar System From Just
$3896*
  • 14 x 475kWh Tier 1 Solar Panels
  • 5kW Smart Wifi Inverter
  • Fully Installed
Bigger Family Home
13.2kW
Solar System
Own This Solar System From Just
$6496*
  • 28 x 475kWh Tier 1 Solar Panels
  • 10kW Smart Wifi Inverter
  • Fully Installed

* Disclaimer: Estimated Battery pricing includes the Federal Battery Rebates under the Cheaper Home Batteries Program (CHBP), which commences on 1st July 2025. Estimated Solar system pricing is subject to government eligibility criteria and after Small Scale Technology Certificates (STCs). All rebates are subject to Government eligibility criteria and program changes. All indicated pricing are subject to the assignment of STCs to SMART HOUSE SOLAR PTY LTD or its registered agents. Indicated pricing applies only to single-story houses, single-phase meters, & Metro area installations. Installation in a regional area may incur extra costs. SMART HOUSE SOLAR PTY LTD does not perform installation work, engages a licensed contractor for the installation.

The Sweet Spot

What Is a 5kW Solar Power System?

sun

Let's not overcomplicate it. A 5kW solar power system is basically the sweet spot of home solar setups. Not tiny. Not overkill. Just right.

sun

It usually makes around 20 to 25 units (kWh) a day — enough to keep your lights, fridge, and comfort ticking smoothly. For a medium to large Aussie home, it's kinda perfect.

sun

Think of it like your own personal mini-power station. Panels drink up sunshine, inverter turns it into electricity, and your house… well, it just smiles quietly. It's power you don't borrow. You make it.

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Panel Count

How Many Panels in a 5kW Solar System?

Let's count. Most modern panels sit around 370 to 420 watts each. So you'll need about 12 to 14 panels to reach that magic 5-kilowatt mark.

But hold up — it depends. Roof space, tilt, direction… even your postcode matters. A 5kW solar system Perth might work with fewer panels than Melbourne because Perth basks in more golden hours.

At Smart House Solar, we don’t guess. We measure, map, and match your roof like a puzzle. Because every roof’s got its own story.

Solar panels on roof
Roof Requirements

How Much Space Does It Need?

Not much, honestly. A 5kW setup spreads across 20–25 square metres — roughly a small garage roof. You might lose a bit of shade space, but gain a sun-powered wallet.

Roof faces north? Great. East-west? Still solid. Unless you live under a mountain of shade, you're good to go.

20–25m²
Roof space needed
North
Ideal roof direction
E–W
Also works great
15°–45°
Optimal tilt angle
Quick Roof Tips
  • sun North-facing rooftops get maximum sun exposure in Australia — ideal setup.
  • sun East-west splits are still very effective and popular for larger homes.
  • sun Tilt matters — panels at 15°–45° capture the most daily energy year-round.
  • sun Minimal shade is key — even partial shading can reduce output significantly.
  • sun Our team conducts a free roof assessment before every installation.
Pricing

5kW Solar System Price in Australia

Alright, the money talk. The 5kW solar system price in Australia isn't one-size-fits-all. But here's the vibe — it's cheaper than ever, thanks to rebates and better tech.

City System Price With Battery
Brisbane View Price View Price
Adelaide View Price View Price
Melbourne View Price View Price
Perth View Price View Price

A 5kW solar system in Melbourne might cost a bit more — fewer sunny days, you know — but payback still comes fast. And Smart House Solar? We make sure you pay only for quality. Real panels. Real installers. No "discount solar circus" tricks.

Solar system pricing Australia
Power Output

How Much Power Does It Make?

The sun's in charge here. A 5kW solar power system produces around 20 to 25 kWh a day, on average. That's roughly 8,000 to 9,000 units per year — depending on where you are.

Location Daily Output Yearly Output
Brisbane 24–26 kWh 9,000–9,500 kWh
Adelaide 23–25 kWh 8,600–9,200 kWh
Perth 25–27 kWh 9,300–9,700 kWh
Melbourne 20–22 kWh 7,800–8,300 kWh

Now, if each unit costs about 30¢, that's nearly $2,000 in annual savings. And that's before rebates. See why Aussies love this system?

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Solar battery storage
Battery Storage

5kW Solar System with Battery —
Power That Stays Up Late

Daytime's great. But what about night? That's where batteries join the story.

A 5kW solar system with battery stores all that spare daylight. When the sun clocks off, your battery clocks in. Fridge, lights, Netflix, air-con — all powered by sunshine you saved earlier.

  • 5kW solar system with 10kWh battery — comfy for mid-sized homes.
  • 5kW solar system with Tesla Powerwall — fancy, futuristic, efficient.

Sure, it bumps up the 5kW solar system cost, but it also bumps up your freedom. Because being energy-independent? That's priceless.

System Type

On-Grid or Off-Grid — Which One's You?

sun
On-Grid 5kW Solar System
Grid Connected

You're still connected to the grid. You use solar first, grid second. Extra power? You sell it back — the grid literally pays you.

Get On-Grid Quote →
sun
Off-Grid 5kW Solar System
Fully Independent

No wires. No bills. No limits. You live on your own terms, powered by sunlight and storage. It costs more upfront, yes. But the independence? Unmatched.

If you love rural life or just hate power outages, this is your setup.

Get Off-Grid Quote →
Battery Cost

Cost of 5kW Solar System with Battery

Money math time again.

System Type Estimated Cost (AUD)
5kW Solar System Only View Price
5kW with Battery View Price
5kW Off-Grid Setup View Price
Perth solar sunshine

Add rebates and 5kW solar system subsidy, and you could save up to $3,000 instantly. Yep — the government still pays you to go green.

Perth solar sunshine
9,000+
kWh / Year
25–27
kWh / Day
Perth Spotlight

5kW Solar System Perth —
Sunshine Jackpot

If you live in Perth, you've basically hit the solar lottery. The city gets some of Australia's highest sunlight hours. So your 5kW solar system Perth runs like a dream — 9,000+ kWh every year.

That's more power, faster payback, and more money staying in your pocket. Simple math. Brighter future.

Melbourne Spotlight

Cost of 5kW Solar System in Melbourne

Now Melbourne, she's a little moody. Sunny one day, cloudy the next — but your panels still hustle. Even with softer sunlight, you'll still get 20–22 kWh daily, no problem.

And with Victoria's Solar Homes Rebate, you can shave up to $1,400–$1,800 off your upfront cost. So yeah, cloudy skies can still hide good deals.

Perth solar sunshine
$1,400–$1,800
Victoria Solar Homes Rebate Savings
20–22
kWh Generated Daily
$1,800
Max Rebate Available
3–5 YRS
Solar payback period
3–5 Year Payback
Return on Investment

5kW Solar System Payback Period

Here's the sweet part — the payoff. Between rebates, lower bills, and feed-in tariffs, most homeowners recover their investment in 3–5 years. After that? Nearly two decades of low-cost power.

Imagine twenty summers of free air-con. Yeah. That's worth smiling about.

Y1
Install & Start Saving
System installed, bills immediately start dropping.
Y2
Rebates + Feed-in Tariffs
Government rebates and feed-in income compound.
Y3–5
Break Even ✓
Full investment recovered. Everything after is pure profit.
Y25
25-Year Panel Warranty
Two decades of near-free energy. Unbeatable ROI.
Your Checklist

Choosing the Best 5kW Solar Panel System

Not all panels shine equally. Here's your quick checklist:

  • Perth solar sunshine
    High-efficiency modules (400W+) — maximum output from minimal roof space.
  • Perth solar sunshine
    Premium inverter — Fronius or Sungrow are solid bets.
  • Perth solar sunshine
    Battery compatibility — Tesla Powerwall, BYD, LG Chem.
  • Perth solar sunshine
    SAA-accredited installer (Smart House Solar — tick).
  • Perth solar sunshine
    Long warranties — 25 years on panels, at least 10 on inverters.

We don't believe in cookie-cutter installs. Every Smart House Solar system is built for your home's rhythm — your sunlight, your habits, your future.

Best 5kW solar panel checklist
SAA Certified ✓
Payment Options

Flexible Payment Plan* option with $0 upfront also available.

Making solar, battery and home improvements affordable for Aussies

01
Step 01
Hassle-Free Process

Quick and simple Online Application with No Paperwork involved.

02
Step 02
Fast Decisions

Get Decisions in minutes so that you can start enjoying benefits of solar as early as possible.

03
Step 03
Repay from your savings

Repayment starts only after your system is installed. Your system pays for itself from the savings on your electricity bills.

The Right Decision at The Right Time Can Save You Lots of Money!

Speak To Us Before You Receive Your Next Electricity Bill.

1300 650 747
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So Many Brands?

Don't Worry!! We only carry brands with good reputation. Because your family deserves the best!!

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9 Brands
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⭐ Trusted by Queenslanders

What Our Customers Say

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& Counting

5kW Solar System FAQs

01
How many panels in a 5kW solar system?

Typically 12 to 14 panels, depending on panel wattage and your roof’s sunlight angle.

02
How many solar panels for a 5kW system?

If your panels are around 400W, 13 panels is your magic number.

03
How much electricity does a 5kW solar system produce daily?

About 20 to 25 kWh per day — more if you’re in sunny cities like Perth or Brisbane.

04
How much will a 5kW solar system save me?

You’ll likely save $1,800–$2,200 a year, depending on energy rates and location.

05
Can a 5kW solar system power a house?

Yes, absolutely. For families of four or five — it’s almost tailor-made.

Couple smiling near solar panels at sunset

Ready to Start Saving with Solar?

Here's What to Do Next

  • Get Your Free Quote
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  • Start Saving in as Little as 2 Weeks