10kw Solar System Brisbane Guide To Rebates, Savings & Price
What You Need To Know - Table Of Contents
10kw solar systems are among the largest solar systems available for residential homes with high energy consumption or businesses with low power consumption.
Most 10kw solar systems in Brisbane have 370-watt solar panels that are pre-approved for grid connections in Australia.
Is it, on the other hand, the greatest fit for your home or small business?
And how much should you be prepared to spend for one? Continue reading to find out more.
Note: Interested in receiving a 10kw Quote? Request a call back or call us on +61 7 3106 8983 to receive a no obligation free quote.
Is a 10kw Solar System suitable for your home?
If you are consuming between 15-25kwh per day a smaller system such as a 6.6kw or 5 kw may be more suitable. But for homes over 29kwh per day 10kw and up to 13kw size solar systems are going to be the most beneficial.
Each home is unique, so determining if a certain solar system size would be a suitable fit for your home and energy usage requires a review of your bills, consumption habits, budget & available roof space these are all factors that need to be considered.
You may consider oversizing your solar system in relation to your power bill in order to get the most panels on your roof as possible. This will allow you to take advantage of the peak sunlight window, generating as much electricity as possible in the short window that your solar system is producing at full capacity.
Recommended system size range
Orange represents the maximum solar system size for the amount of kwh your home consumes. Black represents the smallest solar system size recommended.
How many Panels In A 10Kw Solar System
Assuming that you are using standard 370W solar panels you will need 27 solar panels on your roof to make up a 10kw system.
How many solar panels your system will have is determined by the manufacturer and wattage size of the solar panel. The higher the wattage of each individual panel, the fewer solar panels you’ll need.
The benefits of having less panels means that you can fit a bigger system on your roof with the same amount of space. A bigger panel will generally give you slightly better watts per meters squared due to less aluminium framing.
However, getting a larger solar panel has certain drawbacks, such as limiting your system design in terms of how it will fit. Because they output so many more volts than a smaller panel, they might limit your wiring arrangement. When considering the numerous aspects that go into effectively sizing a solar system, choosing the suitable sized solar system for your home is critical.
How much does a 10kw system Cost ?
A typical price range for a 10kw solar installation ranges from $8000-$13000 for a quality warranty backed system this includes the QLD Government rebate incentive. The average cost in Australia is $0.93 per watt or $9320 after the federal incentive.
However with over 6,000 firms registered with the Clean Energy Council to install solar, the solar business is one of Australia’s most competitive markets. As a result, market margins have been compelled to be razor-thin. Unfortunately, some installers have been forced to forsake product and service quality in order to provide ‘crazy pricing’ and back them with big marketing budgets in order to generate high volumes. These strategies have pushed down prices, but they haven’t improved the situation for consumers in most circumstances.
Below is a chart showing the different average costs per state. You will notice that for Brisbane an average 10kw will cost $8,470 and this is after the government rebate incentive has been applied.
Referenced from SolarChoice
How much Can You Expect To Save with a 10kw?
A homeowner that sells 50% of their solar energy back to the grid and consumes the other 50% would expect to save $2750 annually with a 10kw solar system. This assumes that you are selling your power for $0.08 per kwh ( A standard Feed in tariff in Brisbane ), that you are paying $0.25 per kwh for the electricity that you buy from your energy provider & that your 10kw system is producing 45kwh of electricity a day.
Given the variables, most people fall into one of three categories when it comes to energy use. A good rule of thumb is that the more energy you can use from your solar system instead of selling the more you can save.
How Your Usage Affects your savings
1 – Low daytime Usage 30-50%
Estimated savings annually $2,150 – $2,750
2 – Medium Daytime Usage 50-70%
Estimated savings annually $2,750-$3,268
3 – High Daytime Usage 70-100%
Estimated savings annually $3268 – $4106
How much Power Does A 10kW solar system produce per day ?
Your 10kW will have varied outputs depending on the state you live in. The peak number of sun hours generated each day on average in your state is used to compute the output of your solar system. For example, the usual peak sun hours in Brisbane are 4.2-5 hours per day throughout the year; to calculate how much your system will generate, multiply your peak solar hours by the system size. For example a 10kw x 4.2 = 42Kwh of power production per day on average throughout the year.
What Can impact your solar systems energy output?
A number of things can have an impact on your system’s output, including:
- Direction your panels are facing ( North is the most optimal direction )
- System efficiency rating ( This is usually around 80-90% of the solar system output total )
- Panel tilt angle
- Potential shading or physical impediments such as bird poo, dust etc
- Geographical location
How Long Does it take to Pay Off A 10kw solar system?
For an average Brisbane homeowner paying the average price for a 10kw solar system $8470, it would take you 3.08 years to get your full return on investment.
If paying for a solar system in full is not possible, many solar installers provide a fixed-interest financing option. Small loan providers, such as Humm & Brighte, are among the most popular solutions.
The length of time it takes to pay off a solar system varies on whether you finance it yourself or use one of the providers mentioned.
The advantages of using a finance option allow you to get solar installed sooner rather than later and, in many circumstances, pay less, if not the same, as you did when you paid your electricity bill to your energy providers. In effect, you would be substituting your energy bill with a finance payback plan over a set length of time, often 3-5 years for a 10kw system.
In many circumstances, most solar owners can pay the same, if not less, than their usual power bill, while the solar system pays for itself over time.
If you choose a self-financed solar system, you will have a quicker ROI period. For a 10kw system, you will have to wait 2.5-3.5 years to return your initial investment.
Other factors to consider while estimating your payback period include…
- How much of your time do you spend at home during the day versus at night?
- Do you intend to add more electricity-using gadgets in the future?
- Do you have to use gas or electric hot water ?
- The amount of sunlight hours your geographical area gets
- How many people live in your house?
When done correctly, solar can be a simple procedure, and accurately determining your payback period is critical to knowing how much you will save over the years you have solar.
What STC's & Rebates Do I Get For A 10Kw In 2022
Rebates, also known as STC certificates, are a mechanism for the government to financially incentivize Australians to go solar. Each state has its own rebate structure in place, and in Queensland, STCs are awarded according to the size of the solar system installed. The larger the solar system, the greater the refund to offset the cost of that system.
The refund decreases year after year, and you will receive less and less compensation from the government. In august 2022, you would acquire 124 STC certificates for a 10kw at a cost of $39.25 each, resulting in a rebate of $4867 that you would be paid for.
However, if you wait one year, you will only earn 110 STC certificates worth $4317 this is because the solar incentive program for Brisbane ends in 2030 and therefore the number of STC’s available drops each year.
You can Calculate your STC’s using our solar rebate calculator.
Request a Call Back
Request a call back from a knowledgeable solar specialist. All you have to do is enter your contact information and best available time, and we will call you to see whether solar is a realistic option for your home.
After your call, we will send you a proposal outlining the potential solar savings and costs sent straight to your email.
