System size and roof fit
Understand what size system may suit your roof, household usage, and daytime energy habits.

Residential solar guide 2026
A practical guide to comparing solar panels, rebates, batteries, system size, payback, and installer quotes before you commit.
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What this guide helps you compare
Solar is not just a panel price. The useful comparison is how each installer explains your roof, usage profile, rebate, equipment, warranty, battery pathway, and expected payback.
Understand what size system may suit your roof, household usage, and daytime energy habits.
Learn how STCs affect the price you see on a solar quote and why location changes the discount.
Compare the main parts of a home solar system without getting lost in brand claims.
Know what should be included before choosing a solar company to install your system.
System basics
The guide explains the core components of residential solar so you can ask better questions about system design, inverter type, batteries, and how your home uses solar power.


Cost and payback
The guide breaks down the moving parts behind solar pricing and why rebate value, household usage, battery timing, equipment quality, and installer workmanship can change the final recommendation.
Your location, system size, and certificate price affect the upfront solar discount shown in a quote.
The best return usually comes from using more solar power during the day instead of exporting it.
System price, usage profile, feed-in tariff, and equipment quality all influence payback.
Compare quotes
Start with your postcode and we will help match your request with trusted residential solar installers.
The development of the solar industry in Australia has been quite extraordinary. In just a few short years, solar energy has established itself as a reliable and obvious way for consumers to take control of their power bills. Generous government incentives and continually falling solar panel prices have propelled the uptake of solar power and now more than 4.3M households are enjoying the benefits of living under a solar roof. Learning important solar tips, and understanding the benefits of solar power and how it works before receiving your free quotes will help make your quoting experience as positive and informative as possible.
There is a vast solar market and an abundance of different solar solutions to serve homeowner’s needs, and it is necessary to have a basic understanding of some crucial factors such as:
We are experts in solar power, and we have distilled our knowledge of these concepts into our must-read solar tips guide designed to help you make an informed decision on solar power.
We’re an energetic team of engineers, environmental warriors, and customer service professionals who work hard to move Australia towards a more sustainable future. As the people’s champion of the solar industry, we bring passion and innovation to the most significant problems homeowners face when searching for solar. We love solar energy, and we are the much-needed independent voice that gives thousands of Australians every month an educational and overwhelmingly positive solar quoting experience.
We are facing an unprecedented climate emergency that is causing an immediate and direct threat to life on our planet. Our mission at Your Solar Quotes is to reduce Australia’s dependence on fossil fuels and help people harness clean, renewable energy from the sun.
We have done the due diligence and worked hard to find the solar companies who will go above and beyond for our customers. Our business values transparency, fairness, customer service, and accountability, and we look for these same values in the solar companies that we recommend.
We believe the search for solar should be an educational and hassle-free experience. Using our customer feedback system, we champion the solar companies who are highly effective at what they do - ensuring that our customer’s search for solar and our collective future is in safe hands.
Before jumping into the different types of solar you can install at your home, we must first understand why it makes sense to install solar power.
Australia has some of the highest energy prices and also the highest solar radiation of any continent in the world, putting us in a unique position to harness the sun’s energy and benefit the back pocket. A well-designed system can save you up to 85% on your power bills and protect you from continually rising electricity prices, making the decision to install solar power a no-brainer.
Solar systems pay for themselves with energy savings in 3–5 years if used wisely and installing solar power also increases the value of your greatest asset. We recommend optimising the time of day when you consume most of your electricity in order to achieve a return on investment of 20-30%!
Solar panels are extremely durable and come with long performance warranties - most quality panels are warranted to retain at least 84-87% of their output after 25-30 years, and even older-style warranties guarantee at least 80% at year 25.
We are lucky enough to live in one of the most naturally beautiful countries in the world. Powering your home with solar power will protect our pristine natural environment for generations to come because solar power is a renewable energy source that does not produce greenhouse gas (GHG) emissions.
Solar panels are usually mounted on your roof, and they transform the incoming sunlight into electricity. There are 2 main types of solar panels to choose from, mono-crystalline and poly-crystalline, and both typically come with a 25-30 year performance warranty. Some salespeople will try and tell you that one type (the one they are selling) is far superior to the other - however, they are both great in the Australian climate.
These solar panels are made from a single silicon crystal and have a black appearance.
These solar panels are made up of multiple silicon crystals and have a dark blue appearance.

Monocrystalline and polycrystalline panels are both great in Australian conditions. The key thing you need to consider when buying solar panels is choosing a good brand that will last.
The inverter is the brain of your solar system. It converts electricity from the solar panels into electricity that can be used in the home. There are 3 types of inverters - string inverters, micro-inverters and power optimisers.
A string inverter is installed on a wall and each ‘string’ of panels connects to this central unit. The efficiency of each ‘string’ of panels is determined by the efficiency of the lowest-performing panel, so if one panel isn’t performing well (due to shading or a faulty connection) then the output of that entire ‘string’ of panels will be brought down. This style of an inverter is great for roofs that don’t have shading issues.
Micro-inverters are a relatively new concept whereby instead of having one big central inverter, there is a small inverter installed on the back of every solar panel in the system. Having many small panel-level inverters means that the power output of every panel is independent of each other at all times. This avoids power losses from shading issues and provides a higher level of reliability because if one solar panel fails, the rest of the panels in the system won’t be affected. Due to this, the efficiency of each individual panel is optimised, resulting in more power output from your system. Micro-inverters also provide an added level of safety, as there is no high DC voltage by design, and they automatically shut down the entire system if there is a major fault. These added benefits come at a price, and you can expect to pay an additional 20-30% on the system cost for micro-inverters.
A power optimiser system is a string inverter on the wall, and also DC power optimisers on each individual panel. Power optimisers work similarly to micro-inverters because they optimise each panel individually, resulting in more energy production. Power optimisers also provide an added level of safety due because they automatically shut down the entire system if there is a major fault. You can expect to pay roughly 10-20% more on the system cost for power optimisers.
All grid-connected inverters are battery ready. If you’d like to connect batteries to your system at a later date you can do this using an AC coupling to a battery inverter.
Micro-inverters and power optimisers will give you approx 10% more energy production than string inverter systems but micro-inverters and power optimiser systems are 20-30% more expensive. After you’ve decided which type of inverter you require, the key thing you need to consider when buying an inverter is choosing a good brand that will last.

Solar batteries have moved into the mainstream, helped along by the federal Cheaper Home Batteries Program, which discounts eligible batteries paired with new or existing solar. There are some excellent battery technologies from brands like Tesla, Sungrow, BYD, Sigenergy and AlphaESS; a typical 10-13.5kWh home battery adds roughly $7,000 to $13,000 to the total system cost after the federal discount, depending on brand and installation.
With the federal discount, a well-matched home battery typically pays for itself in around 5-10 years depending on your evening usage, tariff and any virtual power plant incentives - and the discount steps down over time, so the maths favours acting sooner. If a battery doesn't stack up for you yet, installing a 'battery ready' system and adding storage later is still a sensible path - see our solar battery guide for how to compare your options.

The first and most common type of solar power system is the grid-connected solar system. Grid-connected systems consist of solar panels, an inverter and an energy meter. With this type of system, the power produced by the solar panels instantaneously supplies the household’s energy needs and any excess solar energy will pass through the bidirectional meter and get fed back into the electricity grid. Your electricity retailer will pay you a small rate or ‘feed-in tariff’ for the electricity that you feed back into the grid - more on this later.

The second type of solar power system is the hybrid solar system (or grid-connected system with battery storage). Hybrid solar systems consist of solar panels, an inverter, an energy meter and a solar battery (generally lithium-ion technology). With a hybrid system, the power produced by the solar panels instantaneously supplies the household’s energy needs and any excess solar energy will be stored in the solar battery instead of being sent back into the grid. The energy stored inside the battery is then used to power the household’s energy needs during the evening. If for any reason you require more power then you have stored in the battery, you can draw power from the grid. Hybrid solar systems currently cost at least twice as much as a standard grid-connected system, so a lot of homeowners are installing a ‘battery ready’ system and waiting for the price of batteries to come down.

The third type of solar power system is the off-grid solar system (or stand-alone system). This type of solar system is completely isolated from the grid. The purpose of off-grid systems is to provide power and energy where there is no access to the electricity grid (remote areas) or when the cost of the energy retailer providing power lines to the property is prohibitive. Off-grid systems consist of solar panels, a charge controller, a battery bank and an inverter. Off-grid systems are far more expensive than grid-connected systems, so it is important that your solar needs fit the purpose of this type of system.
You are entitled to the Federal Government’s hugely popular ‘solar rebate’ when you install solar power at your home! The ‘rebate’ or Small-Scale Technology Certificate (STC) Scheme is extremely generous, and you can claim $1,800 on a 6.6kW system depending on where you live! Your chosen solar company will handle the application for the rebate on your behalf and apply the value of this rebate as a discount at the point of sale.
Installing a battery? The federal Cheaper Home Batteries Program also discounts eligible batteries paired with new or existing solar - support is tiered by usable capacity, with the highest rate on the first 14kWh.
The industry design guidelines allow you to install one third more panel capacity than your inverter is rated at. For this reason, we recommend 'oversizing' your solar array to claim up to 33% more solar rebate - it also helps you produce more power during low light conditions. The common system size of 6.6kW of panels installed on a 5kW inverter is a classic example of oversizing.
The following State Government solar rebates and grants are offered on top of the Federal Government’s ‘Solar Rebate’.

Home Energy Support Program - eligible concession-card holders can access a rebate of 50% of the cost of rooftop solar (capped at $2,500), plus a zero-interest loan of up to $10,000. The broader Sustainable Household Scheme also offers loans of up to $20,000 for energy upgrades - check the ACT Government's Climate Choices site for current terms.
Home Energy Saver Program - announced in June 2026, this program offers interest-free loans of up to $15,000 for solar, batteries and efficient appliances (household income up to $210,000), plus an upfront discount of up to $4,000 for lower-income households. It's a new program, so check energy.nsw.gov.au for current details and availability.
Queensland homeowners still qualify for the federal STC discount and the federal battery rebate. Previous Queensland battery support programs have had specific eligibility rules and funding windows, so check current program availability before relying on a state battery discount in your quote.
Solar Panel Rebate - households that haven't had solar installed in the past ten years can access a rebate of up to $1,400 (with an optional matching interest-free loan) through Solar Victoria. Eligibility criteria apply, including a combined household income cap of $150,000 and a property value under $3 million - check Solar Victoria for current thresholds.
Batteries - Solar Victoria's battery loan program has closed; Victorian households installing a battery can instead access the federal Cheaper Home Batteries Program discount.
Hot Water Rebate - rebates of up to $1,000 (up to $1,400 for locally manufactured heat pumps) are available for replacing an old hot water system with an efficient heat pump or solar hot water system, under the same eligibility criteria.
WA Residential Battery Scheme - launched 1 July 2025 alongside the federal battery program, offering a rebate of $1,300 (Synergy customers) or $3,800 (Horizon Power customers) on home batteries, with interest-free loans of up to $10,000 for eligible households. Virtual power plant capability is required.
South Australia (SA), Tasmania (TAS) and the Northern Territory (NT) currently have no broad additional state-level solar panel rebates - homeowners in these states still qualify for the federal STC discount and the federal battery program.
Solar feed-in tariffs (FITs) are the amount you get paid by your energy retailer for the excess energy your solar system exports back into the grid.
During the day, it’s typical for your solar power system to generate more power than is being used in your home. This means that if you have a grid-connected solar system, the energy is fed back into the grid and your energy retailer will pay you a fixed amount per kWh of energy that you send to them.
Feed-in tariff rates are now much lower than the rate you pay for your electricity - in most states just a few cents per kilowatt-hour. Therefore, we recommend consuming as much of your solar energy as possible in order to maximise the value from your solar investment. Electricity retailers offer different FiTs, and we recommend comparing rates to ensure you are getting the best deal.
FiTs also vary depending on the state that you live in. The table below shows typical rates offered by energy retailers in each state - rates change every July, so check your retailer or state regulator for current offers. Some retailers also offer higher time-of-day or promotional rates with conditions attached.
| State | Typical Feed-in Tariff |
|---|---|
| VIC | 0-5c/kWh (no mandated minimum) |
| SA | 0-8c/kWh |
| ACT | 0-8c/kWh |
| TAS | ~9.3c/kWh (regulated) |
| NT | ~9.3c/kWh (higher rate 3-9pm) |
| WA | 10c/kWh peak (3-9pm), 2c off-peak |
| QLD | 0-8c/kWh |
| NSW | 0-7c/kWh |
The direction that your solar panels face can have a huge impact on the overall amount of energy produced by your system. In Australia, a north-facing solar system will produce the most energy - with peak production during the middle of the day when the sun is at its highest point.
However, solar systems installed on the North-East or North-West aspects of the roof will produce only slightly less power than North facing installations (see image below for the difference in energy production).
As solar panel prices and feed-in tariff rates have fallen, East-West facing installations are becoming increasingly popular because they start generating power earlier in the day and finish later in the afternoon - which follows most families’ energy usage patterns more closely. This means that even though the system is producing less energy overall, more of the energy is being self-consumed making East-West installations an attractive prospect.

When deciding which aspect of your roof best suits your energy requirements, you need to take into consideration how you use power in your home. If you have kids at school and are away from the house for the majority of the day then it could be beneficial to install an east-west solar array.
If your roof faces south, your system would produce 28% less energy than an ideal North facing installation, so we recommend only installing on the South Facing aspect of your roof as an absolute last resort.
Discuss your household’s energy usage profile during the quotation process and the solar companies will recommend a solar panel orientation tailored to your individual needs.
The slope of your roof usually dictates the angle at which your solar panels are installed. If you have a flat roof or in case of ground-mounted systems, your installer will choose a tilt angle that is as close to the latitude of your solar installation as possible. (check table below for ideal panel tilt angle in your location)


To maximise the energy produced by your system, the ideal tilt angle for your solar panels is as close as possible to the latitude of your location.
Choosing the right system depends on many factors including how much power you use during daylight hours, your roof orientation, whether shading will be an issue on your roof and how much roof space you have at your home. We receive a lot of enquiries from homeowners who would like to add panels to an existing solar system they installed a few years ago (which can be a costly exercise), so in general, we recommend installing as many panels as your budget and roof space allows.
This ‘future proofs’ you against continually rising electricity prices and will enable you to take full advantage of the generous government solar rebate as it stands. As a rough system sizing guide, you can compare the average daily power usage on your power bill to the average daily output of common system sizes we have calculated in the table below.
| System Size | Avg daily output | Return on Investment |
|---|---|---|
| 2 kW | 8.4 kWh | 3 - 5 years |
| 3 kW | 12.6 kWh | 3 - 5 years |
| 4 kW | 16.8 kWh | 3 - 5 years |
| 5 kW | 21.0 kWh | 3 - 5 years |
| 6.6 kW | 27.7 kWh | 3 - 5 years |
| 10 kW | 42.0 kWh | 3 - 5 years |
*Please note that the location used for above the daily output calculations is Brisbane QLD - based on the Clean Energy Council GC Design Guidelines.
During the quotation process, each solar company will assess your energy usage profile, roof orientation and available roof space before providing their recommended system size. Great solar installers will conduct a shade analysis and use the Clean Energy Council’s Design Guidelines and industry tools to calculate your system output before providing a breakdown of your estimated return on investment. This ROI calculation should always take into consideration how much energy you will be self-consuming in your home and how much you will export back into the grid.
The cost of installing a solar system can vary widely and is affected by a range of factors such as where you live, the retailer or installer you choose, the warranties available, and the technology and size of your system.
The major factors which will affect the price of a solar system are:
Keeping the above variables in mind, we have created the table below as an approximate 2026 price guide for solar systems installed in Australia’s major capital cities. The Federal Government ‘solar rebate’ (STCs) have already been subtracted from the total system cost, so the numbers below represent the out-of-pocket expense to customers installing a tier 1 solar system with a standard (string) inverter.
| System Size | Estimated Price Range |
|---|---|
| 3kW | $2,500 - $4,500 |
| 4kW | $3,000 - $5,200 |
| 5kW | $3,500 - $6,000 |
| 6.6kW | $4,000 - $7,000 |
| 10kW | $6,500 - $10,500 |
Please note if you are lucky enough to live in a state with an active state-level solar rebate, you'll be entitled to an additional discount on the above pricing.
The return on investment (ROI) period for your solar system can vary quite a lot depending on the size of your system, the orientation of your solar array, your location and most importantly, how you use your power at home. As a general rule, you can expect a well-designed solar system to pay for itself within 3–6 years in Australia. Your chosen solar installer will provide energy calculations and a breakdown of your expected ROI during the quotation process.
We recommend self-consuming as much of your solar energy as possible in order to maximise the return from your solar investment.
If you’ve been on social media you’ve probably noticed the countless ‘no interest’ solar finance specials or the ‘solar for $0 down’ ads that seem just a little too good to be true? BEWARE! THIS IS BECAUSE THEY ARE...
Unfortunately, the finance companies behind these ‘no interest’ deals charge the solar installer a fee for the privilege (which is then passed onto you).
This fee can be anywhere up to 25% of the cost of the solar system so if you sign up for one of these easy, ‘no interest deals’ you’re essentially paying a higher interest rate than the worst possible credit card.
By carefully listening to our customer’s feedback since 2014, we have come to realise that solar experts are not financing experts, and after extensive research and due diligence, we have proudly partnered with Community First Credit Union to help our customers explore low-rate solar finance options.
Our business has been built around transparency, fairness, customer service and accountability, and we look for these same values in the companies that we recommend. For this reason, Community First Credit Union were the obvious choice as a finance partner as they align with our mission of driving Australia towards a sustainable future and because they believe in making the customer’s search for solar finance an informational and hassle-free experience.
If you are interested in financing your solar, please select ‘interested in solar finance’ along with your quote request or give our friendly team a call on 1300 939 821, and we will be happy to help answer any questions that you have.
The age-old wisdom of ‘you pay for what you get’ is especially true when buying a solar system. Solar power is an investment that will pay for itself many times over if you purchase a quality system from a reputable solar company.
If you notice newspaper and TV advertisements offering 6.6kW systems for $3990 (or less), we recommend avoiding these cheap solar deals like the plague. Australia’s largest solar installer in 2017 was infamous for selling cheap solar systems, and it was no surprise when they went into liquidation - leaving thousands of unsatisfied customers in their wake. The solar industry consensus is that the warranties these cheap systems come with, aren’t worth the paper that they are printed on.
There are thousands of horror stories online about faulty components, non-compliant installations and non-existent service and these are all a direct result of the dodgy, bottom of the market solar companies cutting corners in order to offer these ‘too good to be true’ prices.
Thankfully, we have done the due diligence to ensure that the solar companies we recommend use Clean Energy Council approved products and have all the necessary accreditation’s, electrical contractor licenses and positive customer feedback to ensure they will provide you with a solar system that will stand the test of time.
The best way to guarantee that your solar panels will continue to save you money for their entire 25-year life is to choose a reliable, Tier 1 brand that has been approved by the Clean Energy Council.
There is so much information (and misinformation) out there about which solar panel brands are the best that we’ve decided to make your job easy, and we’ve created the graphic below to help you easily compare entry-level and premium solar panel brands.

As we’ve mentioned previously, the inverter is the brain and hardest working component of your solar system. Most premium inverters will have a 10+ year warranty and as such, we’d recommend steering clear of any inverter with a warranty less than 10 years.
Since early 2024, Solar Accreditation Australia (SAA) - appointed by the Clean Energy Regulator - accredits solar installers and designers, taking over that role from the Clean Energy Council (CEC). Using an SAA-accredited installer, with panels and inverters on the CEC approved product lists, is a legal requirement for claiming the government rebate - and it means your installation is completed to a high standard of workmanship. It's also worth looking for NETCC Approved Sellers, a consumer-protection code administered by the CEC.
If you’re considering installing solar power on your home, we have done the due diligence and worked hard to find the accredited solar companies who will go above and beyond for you. Their reputations are built on years of providing extraordinary service to our past customers, and you can rest assured that your solar investment is in safe hands.
Please enter your details below or give our friendly team a call on 1300 939 821, and we will arrange your obligation-free solar quotes today!
As a rough 2026 guide, a 6.6kW tier-1 solar system with a standard string inverter costs around $4,000 to $7,000 installed in Australia's major capital cities, with the federal STC discount already factored in. The final price varies with your location, roof type, panel and inverter brands, and any state-level incentives you qualify for - which is why comparing multiple quotes matters.
It depends on how much power you use during daylight hours, your roof orientation, shading, and available roof space. As a rough guide, a 6.6kW system produces around 27kWh a day on average, which suits many family homes. Because adding panels later can be costly, we generally recommend installing as many panels as your budget and roof space allow - it future-proofs you against rising electricity prices and rewards you with a larger upfront rebate.
In Australia, north-facing panels produce the most total energy, peaking in the middle of the day. East-west installations produce slightly less overall but generate earlier in the morning and later in the afternoon, which matches many families' usage patterns and can improve self-consumption now that feed-in tariffs are low. South-facing panels produce around 28% less than north-facing, so we recommend them only as a last resort.
With the federal Cheaper Home Batteries Program discounting eligible batteries, a typical 10-13.5kWh home battery adds roughly $7,000 to $13,000 after the discount and often pays for itself in around 5-10 years - fastest for households with high evening usage. If a battery doesn't stack up for you yet, installing a battery-ready system and adding storage later remains a sensible path.