6.6kW solar system upfront cost
This blog primarily focuses on the the upfront cost of a 6.6kW solar system without solar battery. We’ll share some of the recent proposals for 6.6kW solar system that covers the inverter and panels from various companies. However, if you are interested in a 6.6kW solar system with a battery, we suggest reading our other blog post – How much does a 6.6kW solar system with battery cost in Victoria?
Key Highlights
Can a solar PV system function effectively without a battery backup?
Yes, there’s no technical issue if you don’t have a solar battery. In fact, according to a sales representative from Green Electric Solutions, 2 out of 3 customers opt for a 6.6kW solar PV system without a battery.
Is it cost effective to install a 6.6kW solar system without a battery backup?
This is an important question and to answer this we have to analyze following factors:
- Your house hold electricity load or daily average usage
- When do you need the solar energy the most
A 6.6 kW solar system can generate a significant amount of electricity, but its effectiveness depends on your household or facility’s energy consumption. If you consume most of your electricity during daylight hours when the solar panels are producing electricity, you can reduce a big part of your electricity bill.
However, if your energy usage is lower than the amount generated by your solar panels, you might want to consider storing the excess energy for backup or selling it to the grid. Otherwise, it could go to waste.
What are the alternatives to a solar battery backup for maximizing solar PV system results or savings?
If you have no plans to obtain a solar battery backup for your solar PV system and do not require one, it is recommended to install a 6.6kW on grid solar system. This will maximize your savings by allowing you to sell any excess electricity production back to the grid.
How on-grid solar system works?
An on-grid solar system utilizes solar panels to convert sunlight into electricity, which is then converted from DC to AC by an inverter. Excess electricity can be exported to the grid, earning credits through net metering or feed-in tariffs. These systems remain connected to the grid for continuous electricity supply and are monitored for performance and safety compliance.
How much can you save with an on-grid 6.6kW solar system?
If your daily average usage is less than the actual current production from your 6.6kW solar PV system, then, of course, that means you are selling electricity to the grid. In return, the grid will give you cash or some compensation in electricity units.
6.6kW solar system upfront cost: What is it for an on-grid solar system in Victoria?
There are multiple factors that define or set the 6.6kW solar system upfront cost (e.g. property type, rebate, STCs). However, we would like to share some of our recent proposals that include solar panels and solar inverters from various brands for your convenience below.
Growatt and Jinko
This 6.6kW system includes JINKO panels (440W) and a GROWATT 5kW inverter, making it an economical option for your needs.
Jinko has established its market presence with a local office for warranty claims in Australia. Their N-type technology doesn’t require direct sunlight and performs well even under highly intense conditions. Jinko Solar is one of the world’s largest solar panel manufacturers, offering a wide range of photovoltaic products for residential, commercial, and utility-scale applications.
Growatt is a well-known manufacturer of solar inverters. As of my last update in January 2022, they produce a variety of inverters for different applications and markets. Without knowing the specific model of the Growatt inverter you’re interested in, I can’t provide exact specifications.
Typically, Growatt inverters have high efficiency ratings, exceeding 95%, to maximize the conversion of DC power from solar panels to usable AC power for your home or the grid.
Canadian Solar and Fronius
The Fronius solar inverter is a top-of-the-line choice known for its exceptional performance and reliability. With its advanced technology and high efficiency, you can trust that your solar system will be optimized for maximum energy conversion.
On the other hand, Canadian Solar stands out as one of the most expensive and highly efficient solar panels available in the Australian market. It boasts a high efficiency rate and exhibits a very low degradation period.
While Canadian Solar panels may come at a higher price point, their exceptional efficiency and durability make them an attractive option for those seeking long-term value and maximum energy production.
QCells and Sungrow
Sungrow is a well-established and reputable manufacturer of solar inverters, offering a wide range of inverters for residential, commercial, and utility-scale applications. They are known for their high efficiency, advanced features, and robust performance. Sungrow inverters have gained popularity in the solar industry and have a track record of delivering reliable and efficient operation in various solar PV systems.
We discussed QCells solar panels below.
QCells and GoodWe
GoodWe is a leading global manufacturer of solar inverters, offering a wide range of inverters for residential, commercial, and utility-scale solar PV systems. GoodWe inverters are renowned for their high efficiency, typically exceeding 97%. This high efficiency ensures optimal energy conversion from DC to AC, maximizing overall system performance and energy yield.
QCELLS, a brand of the Hanwha Group, is a renowned manufacturer of solar panels known for their high-quality photovoltaic products and innovative technology. QCELLS solar panels are recognized for their high efficiency, which refers to their ability to convert sunlight into electricity. They utilize advanced cell technologies, such as Q.ANTUM technology, to enhance the efficiency of solar cells and reduce energy losses.
TrinaSolar and GoodWe
Trina Solar is one of the world’s leading solar panel manufacturers, renowned for its high-quality photovoltaic products and innovative technology. Trina Solar’s dual glass panels are particularly notable for their high efficiency, which refers to their ability to convert sunlight into electricity. They incorporate advanced cell technologies, such as PERC (Passivated Emitter Rear Cell) and bifacial cell technology, to achieve even higher efficiency levels and maximize energy production.
We discussed GoodWe inverter above.
SunPower and Sungrow
By combining SunPower’s top-tier solar panels with Sungrow’s reliable solar inverter, you can expect to maximize the energy production and overall performance of your 6.6kW solar system. The high efficiency panels from SunPower, coupled with the optimal energy conversion provided by the Sungrow inverter, can help you generate more electricity from the available sunlight and optimize your system’s energy output.
Conclusion
Since we have shared information about most of the available 6.6kW solar PV systems in the market, we understand that customers may have specific system requirements, such as requesting QCells and Sungrow. However, in many cases, customers are primarily concerned about the recommendations that consider their out-of-pocket or upfront costs.
From best selling to cost effective to premium
| System Details | Best Selling | Premium Quality | Cost Effective |
| Growatt and Jinko | ✅ | ✅ | |
| Canadian Solar and Fronius | ✅ | ||
| QCells and Sungrow | ✅ | ||
| QCells and GoodWe | ✅ | ✅ | |
| TrinaSolar and GoodWe | ✅ | ✅ | |
| SunPower and Sungrow | ✅ |
We also recommend considering GoodWe and Jinko for your 6.6kW solar system. These options are both cost effective ($1,350) and popular among customers, making them best selling choices in the market.
Reach us out
We prioritize providing recommendations that align with customers’ budgetary constraints while still meeting their solar system needs. By understanding their financial considerations, we can suggest cost effective options that offer optimal value and performance.
Feel free to reach out to us with your specific requirements (or email us your requirements at support@thesolarpedia.com), and we’ll be more than happy to assist you in finding the right solar PV system that fits your budget and satisfies your energy goals.
Customer inquiries
How much electricity 6.6kW solar system actually produces?
Please keep in mind before you buy/avail any solar PV system. Solar plates never perform 100% efficiency. For example, take a look at the output of Trinasolar panels as compare to the rated power. Therefore, a 6.6kW solar PV system can produce 23.8kWh on a good sunny day in Melbourne.
Is a 6.6 kW solar system worth it?
For an average household (a family of 2-4 person), 6.6kW solar system is a good option.
How much does a 6.6 kW solar system with battery cost?
The cost of a 6.6kW solar system with a battery starts at $1300. For more detailed information on the pricing and other aspects of such a system, please refer to this blog – How Much is 6.6kW Solar System With Battery in Victoria?
Do all these solar panel or inverter companies have local service centers in Victoria for warranty claims?
Yes.
Can a 5kW solar inverter accommodate a 6.6kW solar PV system?
Yes, a 5kW inverter is a suitable choice for a 6.6kW PV system. As you could see, all the quotations shared above are with 5kW solar inverter.
