Interestingly, the most common system choices include 5kw, 6.6kw, and 10kw solar systems. This is owing to their energy efficiency when compared to pricing.
To pick the one system size between these three, you may have to compare these side by side. Moreover, each household has different energy needs. This means each system size will suit different people depending on the requirements.
In this blog, we’ll be comparing these system sizes to see what each one of them offers. Further, the most important factors to look into when picking a system size are:
- Number of panels
- Energy output
- Payback period
- Suitability for your Household
- Price
So, let’s evaluate a 10kw, 6.6kw, and 5kw Solar System based on these factors to see which one will suit your needs the best.
10kw vs 6.6kw vs 5kw Solar System – Best System Size
All these system sizes are relatively in high demand. So, choosing any one of them is naturally not an easy thing.
First and foremost, consider your long-term energy needs and the short-term savings you want. This will help you pick the system size that fits your solar energy expectations.
Here’s a short overview of the system sizes to assess the comparison of 5kW vs 6.6kW vs 10kW Solar System.
10kw Solar System | 6.6kw Solar System | 5kw Solar System |
BEST FOR | ||
Big households and small business establishments | Average to big households and small commercial purposes | Medium to large households |
ENERGY OUTPUT | ||
29 – 46kWh per day | 20 – 27kWh per day | 22 – 24kWh per day |
NUMBER OF PANELS | ||
34 x 300W solar panels | 22 x 300W solar panels | 17 x 300W solar panels |
PAYBACK PERIOD | ||
| 3 years | 3-5 years | 6-8 years |
APPROX. COST OF SOLAR SYSTEM | ||
| $7,740 | $3,199 | $4,300 |
As you can see, bigger the system size, better the value for your money.
While bigger system sizes are more expensive, they also offer more energy. Not to mention, big system sizes also have the advantage of more governmental incentives in Australia.
But one thing to keep in mind is that it’s not necessary to always pick a 10kw Solar System. You can also go for the other two options. But for that, you’ll first have to evaluate which one will suit you for the price you’re willing to pay.
10kW vs 6.6kW vs 5kW Solar System – Which Is the Better Investment?
Let’s have a short go through of each system size to understand the pros and cons of buying each of them.
#1. 10kw Solar System
This is one of the biggest system sizes and naturally offers more energy output. You should pick this system size if you’ve a large home and want to take advantage of feed-in-tariffs.
On the other hand, people thinking of installing a battery solution in future should also pick a 10kw Solar Panels system size.
Plus, the payback period is also quick due to high electricity generation.
- The 10kw solar consist of around 27 to 33 solar panels.
Is 10kw Solar System Panel The Right Option For You?
To find out that whether 10kw solar system size is the right choice for you, you need to figure out certain points.
The foremost thing you need to do is the calculation of your daily consumption of electricity. This you can determine with the help of solar calculator for energy count.
Further if your daily consumption falls for 32 to 40 kWh in such case a 10kw Solar System Sydney will be the best solar system size for you.
Consequently to maximize the return from solar system you need to do a thing called “audit of your electrical usage”.
Once you perform it and get to know what appliances or activities charge significant power bring them to action when the sun is at its peak.
But note down the facts that avoid using heavy appliances at the same time- try to spread the timing for solar energy usage in effective way.
However if you want our help have a look on the below table of 10kw Solar System Output to be expected in major cities.
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How Much Of Energy Output You Can Expect From 10kw Solar System?
The rate of output differs in different cities because of the climatic conditions.
Like output of 10kw Solar System produces more energy because it is consider as the sunniest city in Australia.
CITY | POWER |
Sydney | 36kWh |
| Melbourne | 35kWh |
Brisbane | 40kWh |
| Adelaide | 39kWh |
Hobart | 33kWh |
| Perth | 42kWh |
Now let see how much you can save on 10kw solar panels.
What will be the Saving & Payback Period on10kw Solar Systems?
Talking about the Payback Period Of 10kw Solar System we can say that it takes 4 – 5 years of time to get your return on investment.
Coming to the point of savings we would say that
- it depends on how efficiently you utilize solar energy.
- it also depends on feed-in-tariff rate you have decided with your electricity retailer.
This was about when you install solar panels without battery. However if you feel the need of 10kw Solar System With Battery Backup, read the below section carefully.
10kw Solar System With Battery Storage
At present all the existing PV systems can have battery system installed thanks to the AC coupling.
Using 10kw Solar System With Batteries can help you in using solar panels for both day and night energy consumption.
However you need to know that battery backup option can affect your budget also they can increase the years of payback period.
This was all detailed description on 10kw Solar System Sydney. Now moving to our second one 6.6kw solar system,
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#2. 6.6kw Solar System
A 6.6kw Solar System Sydney is the best-selling among those who own a medium to large sized home. These people find the system size can run necessary appliances with ease.
Plus, a 6.6kw Solar Panels System is also sufficient for generating energy for centrally air-conditioned homes. So, running multiple appliances is really not a problem when you have this system installed.
- The 6.6kw solar consist of around 18 to 24 solar panels.
Is 6.6kw Solar System Panels Right Option For You?
With the available number of solar panels they can be easily installed on a roof with the fact of much feasible option for people.
Also the fact that houses with single phase have to follow the DNSP limits – maximum capacity of inverters [5 kilowatts] to be allowed. In such case the 6.6kw solar system is the best you can go for.
However if you are looking for the right option irrespective of budget- then you need to find out your daily consumption of energy.
To decide this you need to find out your daily consumption of energy. However if your daily consumption varies from 22 to 28 kWh – the 6.6kw Solar System is the most suitable option for you.
Further if you audited that your daily consumption varies from 22 to 28 kWh – the 6.6kw Solar System Sydney is the most suitable option for you.
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How Much Of Energy Output You Can Expect Form 6.6kw Solar System?
The energy ratio of 6.6kw solar panels will differ in different cities because of the different climatic conditions.
Like Hobart and Melbourne are consider to be the coldest places in Australia so the solar users there cannot expect to get sun lights at peak as compared to people in Perth.
CITY | POWER |
Sydney | 24kWh |
Melbourne | 23kWh |
| Brisbane | 27kWh |
Adelaide | 26kWh |
| Hobart | 22kWh |
Perth | 28kWh |
Moving on if you wanna know how much you can save on such solar panels roll down your eyes on the next section.
What will be the Saving And Payback Period On 6.6kw Solar System?
The payback period of 6.6kw Solar Panels Sydney will be around 6 to 7 years. Talking about how much you can save on it will depend on the fact that how efficiently utilizes solar system.
As said above the saving factor will also depend on the feed in rates discussed between you and the electricity retailer.
If you are looking for a rough estimate you can take the help of Solar Savings Calculator.
A 6.6kw system size is also a good choice if you want to install a battery with it.
6.6kw Solar System With Battery Storage
As earlier said the evolution of AC coupling has made it easier and possible to install any Solar System With Battery Backup.
Also connecting a battery to solar panels may helps in using solar energy day and night but also increases the payback period and budget both for you.
NOTE: Read a comparative analysis on 6.6kw vs 10kw Solar System to get more clear understanding of both panel’s effectiveness and efficiency.
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#3. 5kw Solar System
While the smallest among all the system sizes we mentioned, it’s sufficient if you’re an average energy user.
The 5kw Solar Panels system generates 25kWh per day over the year. This is sufficient if you just want to save some money on energy bills.
People installing a 5kw Solar System usually do so because they find the system size is enough for their family. All these system sizes will offer you huge savings.
Also, getting the installation services from the best Solar Panel Installer is important.
- The 5kw solar consist of around 14 to 17 solar panels.
Is 5kw Solar System Right Option For You?
Similar as in above cases, the suitability of solar panels will depend on how much energy requirements you have. If it ranges between 14kwh to 22kwh – 5kw Solar System Australia is the best option to go for.
Although the solar power output also depends on the positioning of solar panels and the quality of solar panels you use. Thus you should make sure that panels are installed in such a way that proper sunlight fall on them.
However if you wanna see how much 5kw solar panels can produce, jump to our next section of 5kw Solar Panel Energy Output in different cities.
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How Much Of Energy Output You Can Expect From 5kw Solar Panels?
This is the list of energy output you can expect from a good 5kw solar system to produce in different climatic conditions of various cities.
CITY | POWER |
Sydney | 18kWh |
Melbourne | 17kWh |
Brisbane | 20kWh |
| Adelaide | 19kWh |
| Hobart | 16kWh |
| Perth | 21kWh |
Similarly coming to the fact and figures regarding how much you can save on 5kw solar panels.
What will be the Saving And Payback Period Of 5kw Solar System?
In case of 5kw solar panels the payback period is of 6-8 years. Further the savings on 5kw solar panels depends on factor like the rate of feed in tariffs, whether you have chosen off-grid or on grid solar solution.
The savings also depends on the fact that how the full utilization of solar energy takes place. You can also use solar calculator to determine the rough estimate savings on solar panels
The last detail on 5kw solar panels about battery connection with 5kw solar system.
5kw Solar System With Battery Storage
5kw solar system is the smallest solar size compared to other 6.6kw and 10kw Solar System.
However if you were thinking that now the 5kw solar panels are not enough for you provide solar energy and you were ready to make another investment-hold on!
You can increase the efficiency of your already installed 5kw solar panels with attaching it to Solar Battery Backup.
Further if the life span of your solar panel has come to an end then going for a new solar investment will be better.
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Hopefully, now you’ve got a better idea after going through the differences on 10kW vs 6.6kW vs 5kW Solar System.
After knowing all the technical aspects of different solar system, now it’s time to determine about cost of solar panels. Let’s begin,
What’s The Cost Of Solar System In Australia?
The cost of solar system of 1okw vs 6.6kw vs 5kw Solar Panels will depend on various factors. Like the quality of solar panels material [monocrystalline or polycrystalline solar panels], cost of solar installations, rebates and subsidies offer if any and so on.
However if you want a rough estimate on Price Of 10kw Solar System, 6.6kw Or 5kw Solar Panels have a glance at the price of solar system in different cities.
Price Of 10kw vs 6.6kw vs 5kw Solar System
From here you will get the exact idea of which solar system will come under your budget depending upon the price and various incentive offers in different cities.
City | 10kw Solar System Price | 6.6kw Solar System Price | 5kw Solar System Price |
Sydney | $6,091 | $4,491 | $4,491 |
Melbourne | $5,541 | $3,841 | $3,841* |
Brisbane | $6,091 | $4,491 | $4,491 |
Adelaide | $5,891 | $4,491 | $4,491 |
Hobart | $7,091 | $5,691 | $5,750 |
Perth | $5,891 | $4,491 | $4,491 |
NOTE: The above mentioned price of the solar system are not the exact cost. We’ve just estimated the approx. value of the solar system in different cities.
Hence if you are done with all the digging and research on various solar system and their efficacies. So if anyone of above has got your heart, tap on the free quote button just below.
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