10kW Solar System Brisbane

Is a 10kw solar system suitable for your needs? Do you need a larger or smaller system? Find out our recommendations

You live in a decent sized home and consume a moderate amount of electricity everyday. You’ve decided that you want a solar system, but not sure if a 10 KW system is right for your home. This will help you know more about the 10 KW solar system and its different packages.

How big is a 10kW system?

Typically, a 10kW system uses an inverter with a maximum output power of 8kW, and has enough panels to generate 10.6kW of electricity. 

Generally speaking, each panel is rated at around 330W, and so the total number of panels in the system is 32, which totals to 10600W or 10.6kW. 

Inverter size smaller than total panels?

Is it a concern that the inverter rating of 8kW is smaller than the total power of all the panels combined? Will the inverter “blow up”?

These are valid questions.

To put it simply, no. This is not a concern.

Only in ideal conditions will your panels generate its maximum capacity in electricity. Generally, all the following factors add to a non ideal environment:

  • Angle of installation
  • Shading
  • Weather
  • Sun orientation
  • Cloud
  • Humidity
  • Temperature

As a result, your panels will very rarely generate their maximum capacity. 

How Do I Know if the 10KW System is Ideal for Me

If you have a budget for any solar system size, it would be best if you chose one that will give you the maximum benefit without wastage. Think about the following factors before concluding on a 10kW system.

Your Power Consumption

A 10kW solar system usually produces around 25kWh a day. 

If your home consumes significantly less power than this, then perhaps a smaller solar system may not be worth it for you, such as a 6kW solar system.

If you are consuming between 15kWh and 25kWh, then a 10kW solar may be ideal.

If you are consuming higher than 25kWh, then a 13kW system may be more suitable.

How do you tell how much electricity you’re using? You can check on your bill.

Your Electricity Bill

Your bill will definitely show you how much energy you’re consuming on a daily basis. However, if you don’t have your bill handy, perhaps you know off the top of your head how much you’re paying for your bills?

Generally speaking, if you pay less than $80 a month on electricity, solar may not be worth it for you. 

But if you pay $150 to $250 a month, a 10kW system would be ideal. 

A 10kW system is suited for households that does consume a moderate amount of electricity. If the following description fits you, then you will benefit from a 10kW system.

  • Your home consists of 3-5 occupants
  • You use air conditioning moderately
  • You use electrical heating moderately
  • Your oven is used on a semi-regular basis
  • Your clothes are hung out to dry rather than using an electric dryer
  • You use your dishwasher regularly
  • You work from home and your occupation uses a lot of electricity

Your Budget

Each home has different, and each installation is different. Depending on your state, and when you are getting solar installed, your rebates may be different. 

A general rule of thumb is the cost of the full installation including the inverter is $1/w. 

So a 6kW system will cost you about $8,000 - $12,000. 

However, costs are coming down quickly. 

Your roof space

Even if all the factors above lead you to believe you need a 10kW system or larger, the amount of roof space on your home will heavily dictate whether you can fit it all. 

Each panel is around 1762mm x 994mm, which is 1.75m2

So to fit 32, your roof will need at least 55m2. 

Not only that, they should ideally be north facing and have minimal shading from nearby trees. 

How Much Can You Save With a 10kW Solar System?

Your savings will depend on your power consumption. 

A household with a medium energy usage consuming between 15 to 25kWh a day will likely pay about $2181 without solar. 

With solar, such families can save about $2752 reducing their electricity bill and earning about $570 per year by selling back to the grid.

The table below shows an estimated energy consumption, electricity bills, and savings of different types of households.

Low Energy-Consuming HouseholdMedium Energy-Consuming HouseholdHigh Energy-Consuming Household
Daily Power UsageLess than 15kWh15kWh - 25kWhMore than 25kWh
Annual Electricity Bill Without Solar$1,655 $2,181 $2,708
Annual Electricity Bill With Solar-$1018-$570 92
Savings$2,672 $2,752 $2,827

Product Packages

There are three different packages available for a 6kW solar panel. The significant difference in the packages is the choice of the panel and the inverter. 

We have put together these packages for you based on years of experience and plenty of feedback from our clients. 

The lower cost options have fewer features and are generally lesser known brand. However, it does not mean they are lower in terms of quality. All these packages will work just fine for you.

  • Quality on Budget package
  • Mid Range package
  • High-End package.

Quality on a Budget

Quality on a Budget is for families who want to save without losing too much on quality. Although its output power is lower than those of other packages, it is still good enough for the desired result. Also, the durability may not be as much as that of other packages, but they are guaranteed to last for many years.

Solar Panel - Longi Solar LNG-LR6-600PH-350M_35-v1

ManufacturerLongiSolar
Model NumberLNG-LR6-600PH-350M_35-v1
Country of ManufactureChina
Dimension1762 x 994 x 35 mm
Weight19 kg
Maximum Power (W)259.3
Voltage at Maximum Power (V)29.4
Current at Maximum Power (A)8.83
Module efficiency (%)20
Operating Temperature-40oC to +85oC
Safety ClassClass II
Wind Resistance 2400 Pa
Warranty12 Years 

Inverter - Goodwe GW-GW6500D-MS

ManufacturerGoodWe
Model NumberGW-GW 6500  - MS
Country of ManufactureChina
Dimension511 x 415 x 175 mm
Weight22.5 kg
Maximum Input Voltage600 V
MPP Voltage Range80 - 550 V
Maximum PV Input Current12.5 A/ 12.5 A/ 12.5 A
Maximum Output Current42.5 A
Input Power1350 W
Output Power9350 W
Maximum Efficiency97.70%
Warranty10 Years

Mid Range

The Mid Range Package uses Suntech solar panel and Sungrow inverter. The solar panel has a maximum output power of 350 W. Hence it will require about 32 panels to produce 10kW power. Both Suntech and Sungrow are well known in the industry to be quality and effective. Mid Range package is more expensive than the Quality-on-Budget package, but not as much as the High-End package.

Mid Range package is for users who want top-quality but cannot afford our High-End package. If you buy this package, you will be spending more than you would have spent on our Quality on Budget package, but you can be assured of value for your money.

Solar Panel - Suntech STP 350S-B60/Wnhb 

ManufacturerSuntech
Model NumberSTP 350S-B60/Wnhb
Country of ManufactureChina
Dimension1756 x 1039 x 35 mm
Weight20.3 kg
Maximum Power (W)350
Voltage at Maximum Power (V)33.5
Current at Maximum Power (A)10.46
Module efficiency (%)19.2
Operating Temperature-40oC to +85oC
Safety ClassClass II
Wind Resistance 3800 Pa
Warranty12 Years 

Inverter - Sungrow SGR – SG8K – D - Premium

ManufacturerSungrow
Model NumberSGR - SG8K - D
Country of ManufactureChina
Dimension360 x 390 x 148 mm
Weight15.5 kg
Maximum Input Voltage600 V DC
MPP Voltage Range90 - 540 V DC
Maximum PV Input Current12.5 A per MPPT
Maximum Output Current34.8 A
Nominal Output7750 W
Maximum Efficiency98.50%
Warranty10 Years

High End

The High-End package is the most expensive. It includes a Q-Cells panel and a Fronius inverter. The solar panel has a maximum output power of 350 W. Therefore, you will need about 18 of these panels to produce 6kW.

This package is for individuals who value quality and desire a durable product. It may cost more than other packages, but it is also of the best quality.

Solar Panel - Qcell Q Maxx – G2-350

ManufacturerQCELL
Model NumberQ Maxx - G2-350
Country of ManufactureChina
Dimension1740 x 1030 x 32 mm
Weight19.9 kg
Maximum Power (W)350
Voltage at Maximum Power (V)34.24
Current at Maximum Power (A)10.22
Module efficiency (%)19.5
Operating Temperature-40oC to +85oC
Safety ClassClass II
Wind Resistance 4000 Pa
Warranty 25 Years

Inverter - Fronius Primo 8.2.1

ManufacturerPrimo
Model NumberPrimo 8.2.1
Country of ManufactureChina
Dimension645 x 431 x 204 mm
Weight21.5 kg
Maximum Input Voltage710 V
MPP Voltage Range80 - 1000 V
Maximum PV Input Current18 A/ 18 A
Maximum Output Current37.5 A
Input Power12300 W peak
Output Power8200 W
Maximum Efficiency98.10%
Warranty10 Years

Solar Panel Packages Compared

PackageQuality on BudgetMid RangeHigh End
ManufacturerLongiSolarSuntechQ-Cell
Dimension1762 x 994 x 35 mm1756 x 1039 x 35 mm1740 x 1030 x 32 mm
Weight19 kg20.3 kg19.9 kg
Maximum Power (W)259.3350350
Voltage at Maximum Power (V)29.433.534.24
Current at Maximum Power (A)8.8310.4610.22
Wind Resistance2400 Pa3800 Pa4000 Pa
Efficiency (%) 2019. 219. 5
Warranty12 Years12 Years25 Years

Inverter Packages Compared

PackageQuality on BudgetMid RangeHigh End
Dimension511 x 415 x 175 mm360 x 390 x 148 mm645 x 431 x 204 mm
Weight22.5 kg15.5 kg21.5 kg
Maximum Input Power66507100 W7500 W
MPP Voltage Range80 - 550 V90 - 540 V DC80 - 1000 V
Maximum PV Input Current12.5 A/ 12.5 A/ 12.5 A12.5 A per MPPT18 A/ 18 A
Maximum Output Current42.5 A34.8 A37.5 A
Output Power9350 W7750 W8200 W
Maximum Efficiency97.70%98.50%98.10%
Warranty5 Years5 Years10 Years

Get a Quote

You can request a quote for any of our packages. All you need to do is to select your system size, choose your preferred package, then fill in your information and click on "Get price." 

Within one business day, we will send a quote to your email address. You can also choose to customize your system by clicking on "Build your own." 

Here you will have the option to choose your preferred panel brand and inverter brand.