1300 181 116

Solar Panels Perth Price Calculator

Calculate perth Solar Savings

Curious about how much you could save on your electricity bill with a solar system in Perth? Our solar panels cost calculator helps you estimate your potential solar savings in seconds. Whether you’re looking for a new solar system or upgrading an existing system, this calculator gives you an accurate estimate of your installation cost, payback period, and long-term benefits. Simply adjust your electricity usage, system size, and power offset to see how solar energy can transform your household expenses.

With Australian Government incentives and feed-in tariffs, your solar power system can deliver exceptional value. This tool is designed for homeowners comparing solar retailers and installers, helping you find the best system size and quality system for your property. The results give you clear insight into your system cost, total capacity, and potential savings over time.

Perth Solar Savings
Your Perth Solar Savings Calculator

Adjust the settings below to match your energy usage and get an accurate, realistic estimate.

Customise Your Estimate
Adjust the sliders based on your current electricity bill and goals.
1,500 kWh
100 kWh4,000 kWh
$0.12/kWh
$0.01/kWh$0.50/kWh
50%
20%100%
10+ Year Warranty
SAA-Accredited Team
3,000+ Installations
$0 Upfront Finance
Your Solar Estimate
Recommended System Size
6.3 kW
16 panels
Estimated Annual Savings
$1,080
Estimated Cost
$6,125
Payback Period
5.67 yrs
Get an Exact Quote
Call us: 1300 181 116
Estimate only. Based on average Perth conditions.
Behind the Numbers

How Our Solar Panel Calculator Works

This calculator uses several real-world inputs — not generic national averages — to generate your estimate.

1
Your Electricity Bill & Usage Data

Your average quarterly bill and monthly kWh usage come directly from your bill and account for your actual consumption pattern — not a generic estimate.

2
Perth Solar Output Data

The calculator applies Perth-specific solar irradiance data — averaging 5.5–6.5 peak sun hours per day. This is higher than most Australian capital cities, which improves your savings potential.

3
Current Australian Government Rebates

The STC rebate is calculated based on your system size, installation zone, and the current STC price — applied at point of sale and automatically factored into your cost estimate.

4
Feed-In Tariff & DEBS Rates

Current Synergy DEBS rates calculate what you earn from exported energy. Your actual tariff is applied via smart meter data recorded at your property.

5
Installation Costs

Average costs for standard residential installs are included. Your actual price may vary based on roof complexity, switchboard condition, and system configuration — which is why we recommend a personalised quote.

Some Benefits Of Solar Power Energy Systems

EASY TO INSTALL

The solar system gets installed quickly under the expert’s supervision. The recommended conditions are verified before the installation.

SUPERIOR ALL ROUND COMFORT

Solar panels produce enough energy to serve your needs daily. It doesn’t produce less or stops functioning. There are variants of solar systems available to suit your energy needs.

IT GETS WARM, AND QUICK

It provides seamless service once installed. When the Sun is up, it gets warm and functions as expected.

CAN BE USED WITH MOST ROOF SURFACES

No matter what kind of roof you have, solar panels get installed on most kinds of roofs.

LOW MAINTENANCE

It requires less maintenance. If good care is taken, they may work smoothly for several years without any disruption.

Affordable solution

It comes with huge cost saving on energy bills. You pay less plus you save the environment. It’s a double bonus!

Your Estimate Explained

Understanding YourSolar Savings Estimate

This solar savings calculator uses real-world data specific to Perth, WA — including solar output averages, current feed-in tariff rates, and the Australian Government STC rebate scheme.

Feed-In Tariff: What You'll Earn Selling Energy Back

When your panels produce more than your home uses, excess energy is exported to the grid. Your retailer pays you a feed-in tariff for that exported electricity. Under WA's DEBS scheme, Synergy customers currently receive:

10c/kWh
Peak hours (3pm–9pm)
2c/kWh
Off-peak hours
How Payback Time Is Calculated

Your payback time is the number of years for solar savings to equal the total system cost. A 6.6kW system in Perth costs approximately $5,500–$8,000 after the STC rebate. At an average bill of $450/quarter, most customers save $1,400–$2,200 per year — putting payback at 3–5 years, leaving 20+ years of savings on a 25-year warranty system.

3–5 year payback
20+ years of savings
System Size Approx. Panels Daily Output (Perth avg.) Best For
6.6 kW Most Popular 15–18 panels 26–30 kWh/day Average household (15–25 kWh/day use)
10 kW 22–26 panels 38–44 kWh/day Larger households, pools, EVs
13.2 kW 28–34 panels 50–58 kWh/day High-use homes, small business
Battery Storage

Should You Add a Battery?

Battery storage is particularly valuable in WA, where the off-peak feed-in tariff of just 2c/kWh means most exported solar is worth very little. A quality battery paired with solar can push your self-consumption from around 30–40% up to 70–90%, significantly reducing your reliance on grid electricity.

Synergy Residential Battery Scheme: $130/kWh (up to $1,300)
Federal Cheaper Home Batteries Program: up to $3,500

Use the battery calculator to compare options and see how solar + batteries affects your payback time, total savings, and electricity bill.

2¢
Off-peak export rate
32¢
Peak grid import cost
90%
Self-consumption w/ battery
$4,800
Combined rebates available
Ready to Get Started?
Make the Most ofYour Solar Investment

At Vista Electrical Controls, we design every system around your property, electricity usage, and long-term energy goals. Our process includes:

Detailed site assessment of your roof space, orientation, and shading
Smart meter data analysis to understand your usage profile
Personalised system recommendation with clear payback and savings projections
Professional installation by CEC-accredited installers
Call us (08) 6727 9047
Email us info@vistaelectricalcontrols.com.au
Visit us Unit 5, 6 Harvard Way, Canning Vale WA 6155
Get a Free Quote Call Now
FAQs
Frequently Asked Questions
A typical 6.6kW solar system uses 15–18 panels rated at 370W–440W each. A 10kW system uses approximately 22–26 panels. The calculator estimates panel count based on the system size you select. Your available roof space determines the maximum system size that can be installed.
A feed-in tariff is the rate your electricity retailer pays for excess electricity your solar panels export to the grid. In WA, Synergy customers receive 10c/kWh during peak hours (3pm–9pm) and 2c/kWh off-peak under DEBS. The best strategy is to maximise self-consumption rather than relying heavily on export income, because the export tariff is lower than the cost of buying electricity from the grid.
The calculator provides an accurate estimate based on real Perth solar output data, current Australian Government rebate values, and standard installation costs. Your actual savings will vary based on roof orientation, any shading, how much electricity usage falls during daylight hours, and your retailer's tariff structure. For the most accurate estimate, follow up with a site inspection and personalised quote from our team.
Yes — battery storage can be added to most existing solar systems. Compatibility depends on your current inverter. Some inverters support direct battery connection (DC coupled); others work best with an AC coupled battery installed alongside the existing system. Our installers will assess your existing setup and recommend the best option.
Several factors affect your final system cost: • System size — larger systems cost more but generate greater savings • Panel brand and quality — Tier 1 panels carry stronger warranties and better long-term performance • Inverter type — string, hybrid, and microinverters are priced differently • Roof complexity — steep or multi-angle roofs take longer to install • Switchboard upgrades — older boards may need upgrading to handle solar safely • Battery storage — adds upfront cost but significantly improves long-term savings
For most Perth homes using 15–25 kWh per day, a 6.6kW system delivers excellent value. Larger households, those with a pool or EV, or properties with higher usage will benefit from a 10kW or 13.2kW system. Businesses typically install 10kW–100kW+ depending on roof space, daytime usage, and network capacity. Our installers can run detailed calculations using your smart meter data to find the exact best size for your property.
Solar panels are designed to last 25–30 years. Most quality panels carry a 25-year performance warranty guaranteeing at least 80–85% of original output at year 25, plus a separate 10–12 year product warranty against defects. Inverters typically last 10–15 years and may need replacement during the panel's lifespan — worth accounting for in your long-term calculations.