10KW RESIDENTIAL SOLAR SYSTEMS: PRICES
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10KW RESIDENTIAL SOLAR SYSTEMS: PRICES
For Australian houses with significant electricity usage or businesses with just modest electricity requirements, 10kW solar systems are a great investment. This article examines Australian 10kW solar system costs, energy output, and returns.
How many panels & how much roof space for a 10kW solar system?
Most home solar panels have an output rating of between 330 and 400 watts, so a 10 kW system will need 25 to 30 solar panels, each measuring generally 1.7 by 1 metres, and roughly 80 m2 of roof space. Since they use newer technologies, more efficient solar panels often cost more and require less roof area.
How much does a 10kW Solar System cost?
Every month, Solar Choice releases a Solar PV Price Index that measures developments in average pricing across all Australian capital cities.
The average cost of a 10kW solar system in Australia as of October 2022, according to Solar Choice’s own data, is approximately $0.97 per watt, or $9,690 after the federal STC refund is subtracted.
The below table shows the breakdown of the average costs by each major state capital in Australia, which we update every month:
10kW solar system costs by major city in Australia
10kW Solar system Cost
Adelaide, SA$8,910Brisbane, QLD$9,470Canberra, ACT$8,520Darwin, NT$14,090Hobart, TAS$11,120Melbourne, VIC$8,440Sydney, NSW$8,260Perth, WA$9,160All$9,750
In reality, the price you will be charged for your home will rely on important elements including whether it has numerous floors, the type of roofing used, whether or not the roof is shaded, and the calibre of the appliances you choose.
History of 10kW solar system prices in Australia
The graph below gives a quick overview of 10kW solar system price trends in major cities around the nation. As you can see, although the price has decreased dramatically over the past ten years, it has essentially been flat in recent years.
The actual power output of a 10kW solar power system will vary depending on a variety of variables.
These elements consist of:
-Location (for instance, Darwin produces a lot more energy than Hobart)
-Solar panel array orientation and tilt angle
-Whether the panels are shaded in any manner
-The panels’ operating temperature
The table below provides approximate numbers for the amount of electricity a 10kW solar system with a north-facing orientation will produce each day (on average throughout the year) in Australia’s capital cities.
10kW solar system output by capital city (per day)
Adelaide 36 – 41 kWh
Brisbane 39 – 41 kWh
Canberra 36 – 41 kWh
Darwin 42 – 46 kWh
Hobart 29 – 33 kWh
Melbourne 31 – 36 kWh
Perth 40 – 44 kWh
Sydney 34 – 38 kWh
Is a 10kW solar system right for you?
Larger than average for home installations are 10kW solar systems (where 5kW to 6.6kW is much more common). As previously said, 10kW systems are typically most suitable for residences or companies that use a substantial quantity of electricity during the day, above 40kWh per day.
The table below should help you determine whether a 10kW system would be a good fit for your needs or if a larger system would be more appropriate.
We advise that you use at least 30% of the solar energy generated by your system for personal consumption. Table for sizing solar PV systems without batteries
What is the financial return for a 10kW Solar System?
Payback Period for 10kW solar systems by capital city
For a home that consumes 35kWh of power per day at the rates shown in the table above, the table below examines payback durations and internal rate of return (IRR) for individuals who build a 10kW solar system in a few cities at two rates of self-consumption: low (30%) and high (60%). The rewards will be better if you can increase self-consumption rates even further.
