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3kW systems usually generate the equivalent of about two-thirds of total electricity usage. However, if your home has a pool and ducted air conditioning, a 3kW solar system may not generate enough power to make a substantial dent in your power bills.
The entry-level cost for a 3kW solar system (inverter and solar panels) ranges from $3,000 to $4,500. However, this could fluctuate and is ultimately determined by the quality of the inverter and solar panels. We recommend always selecting a good-quality inverter, such as a Fronius, as inverters are the gateway between the solar panels and your home’s electrical infrastructure.
A 3kW solar system will generate more power and over time save you more money in electricity costs in comparison to 1kW or 2 kW system
Depending on the location of your home (important) and a variety of other factors, your roof size should have at least 36m2 of roof space to accommodate the 17-20 solar panels, which will produce up to 5.1kW. A 5kW system should generate around 20kW per day.
The price of a 5kW solar power system varies due to multiple factors such as the quality and type of panels and inverter, the number of panels, and if you include a solar battery in the installation. Thus, purchase and installation costs could start at $4,500 without a battery and increase up to $13,000 – 15,000 with a battery.
The location of your home (inland or coastal) and the angle of your roof will determine the performance of your system. A steeper roof angle is more likely to take advantage of the winter sun, and your system could perform better in winter than in summer. A flat roof will have the opposite result, as summer periods will outperform winter periods.
A 6.6kW system will consist of a configuration of about 14-15 solar panels, utilise between 440W and 475W modules, and have a 5kW inverter.
Depending on location and a variety of factors, you can expect between $3500 – $6500. A 6kW solar system is capable of generating 26.4 units per day with a quality inverter. The inverter plays a crucial role in a solar power system as it is the gateway between the panels and your home’s electrical infrastructure. Therefore, a quality inverter such as a Fronius is essential in generating better results.
Depending on factors such as roof angle, location (coastal or inland), system positioning, and quality of solar panels and inverter, a 6kW solar system is capable of generating 22.5 units per day in Perth WA.
