6.6kW Solar System: All You Should Know

In my years of experience installing solar systems in Australia, I have noticed many homeowners recently ditching their 3kW and 5kW systems, which used to be the common size, for 6.6kW systems.

This is not surprising as the 6.6kW solar system, coupled with a 5kW Inverter offers a larger capacity than the previously common systems. Plus, since the prices of solar system components are declining, larger systems are much more affordable.

A 6.6kW solar power system normally comprises of 15 x 440W solar panels and a 5kW inverter.

As a homeowner planning to invest in a 6.6kW solar system, you want to know what to expect from your system and need answers to a few questions.

This article addresses the most common questions about the 6.6kW solar energy system so you can determine if it is a good fit for your home energy needs.

6.6kW Solar System Price

Investing in a solar power system is an excellent decision towards being energy independent and cutting your energy bills, but how profitable a system can be depends on the upfront cost. Hence, it is important to know how much a 6.6kW solar system costs.

Determining the price of a 6.6kW solar system is not straightforward, as a few factors come into play. Variables like your state of residence, your solar system brand, and your choice of installer all contribute to the cost of your solar system. Plus, adding a battery backup system will raise the price of your solar power system.

However, it is worth noting that choosing the right brand and installer for your system is crucially important if you want a quality system that comes with peace of mind.

I have recorded that Australian homeowners spend an upfront cost of between $3,000 and $6,000 installing a 6.6kW system.

Did You Know?

On Average, a 6.6kW solar system in Sydney can achieve payback in a space of 3 years.

6.6kW Solar System Output

Ideally, a 6.6kW solar system can generate between 23kWh and 33kWh, depending on the state it is installed.

A 6.6kW solar system installed in Sydney can churn out 26.4kWh.

When determining how much electricity a 6.6kW solar system should generate in winter, keep in mind that your system will experience reduced sunlight, which will reduce the expected electricity generated. Hence, expect your system to generate less energy during winter.

Do I Need A Battery For a 6.6kW Solar System?

One misconception about solar power systems is that a battery is a compulsory component to run your system. While you need a battery to maximise the value of your system, you can run your 6.6kW solar system without a battery.

Whether you need a battery for your 6.6kW solar system, like other solar systems, depends on how much value you would like to derive from your system.

A battery functions as energy storage in your system. It helps store excess energy generated by your panels during the day for later use later in the evening when the sun is no longer around. This ultimately saves you money on energy bills.

Without a battery in your system, your solar panels will generate energy during the day to power your appliances, but you need to switch to another source of energy once the panels stop capturing sunlight in the evening.

Overall, while you don’t necessarily need a battery for your 6.6kW solar system, investing in a battery lets allows you to get the most from your solar system.

Did You Know?

The Federal Solar Rebate can reduce the upfront cost of a 6.6kW solar system by up to 30%.

Is 6.6kW Solar System Enough To Run A House?

In the past, a 3kW system used to be the most common system among Australian homes, but homeowners now find value in 6.6kW systems for their higher energy capacity.

Regardless, the important question remains if a 6.6kW system is enough to power your home’s appliances, and the answer is “it depends”. Whether you can rely on a 6.6kW solar system to run your house depends on your energy needs.

For a home with low energy needs, a 6.6kW solar system can be enough to run small appliances without depending on other energy sources.

On the other hand, a large family with high energy needs will need a bigger system to power all appliances.

However, regardless of your choice of solar system, it is crucial to choose a reputable Australian solar system installer for your system installation. Choosing a professional, experienced solar installer means your system is properly installed and you can have the best value of your investment.

Should I Consider a Larger System?

As highlighted above, while a 6.6kW solar power system can be a suitable choice for a household with low energy demands running a few low-power appliances, it is not the best choice for large homes.  Hence, it is a good idea for a large family to shift its gaze to a higher system that can power more energy-demanding appliances.

In my experience installing thousands of systems over the years, larger systems like 10kW systems and 13.2kW systems have more value to offer mid-large electricity consumers.

Take advantage of the ongoing battery rebate on our 13.2kW Mega SolaX Battery & Solar Package.

Need a Customised Solar System?

Considering a customised solar power system is not a bad idea. A customised solar system offers the benefit of flexibility to suit unique applications. Since you can choose the shape, size and configuration of your system, a customised solar system is suitable for applications where a standard system is not feasible.

By discussing your needs with a professional solar installation expert like SolarBright, you can work on which system is the best for your home based on your family size and installation requirements.

Need Help With Your Solar Installation?

At SolarBright, we understand solar systems are not cheap investments and make it a point of necessity to ensure our customers have the best value for money.

Contact us and our experts will be glad to discuss and recommend the best option for you based on your energy needs.