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What to Know About Solar Requirements for a House in Australia

Solar Panel Requirements for your home Australia

Solar power continues to gain traction as a popular form of sustainable energy in Australia. Every year, more Australian homes choose to go green with a solar system. However, before installing a solar system of your own, you should be aware of a number of requirements that impact cost and performance. In this article, we’ll go through what to know about solar requirements for a house in Australia.

You can even use this article as a checklist to better understand solar requirements and how to prepare your home for installation in the future.

Your energy goals

Every year, more Australian homeowners decide to switch to solar power for a variety of reasons. Some install solar systems to:

  • Cover their daytime energy demands;
  • Lessen their reliance on the grid;
  • Seek an alternative to building grid access to their property in remote areas (in some cases, building an off-grid solar system is cheaper than creating access from the closest grid).

Deciding your goals before going deep into system design can help you determine the type of solar system you need, be it an on-grid system, an off-grid system, or a hybrid one.

Learn more about the different types of solar systems in this article.

Daily electricity consumption

One of the main benefits of switching to solar energy is saving money. But what about your daily electricity consumption?

Daily electricity consumption, which uses kWh as its metric, is an important variable in sizing your solar power system. Knowing it can help you determine the baseline of electricity your system needs to produce in order to meet your energy requirements more accurately.

Total peak sun hours

Australia is an enormous island, with many different climates throughout the country. As such, the area where you reside will affect how much sun your system will receive. For example, across the year, Perth receives more sunshine than Melbourne, and Melbourne receives more than Hobart, and so on. People living in Melbourne will require a larger solar system to cater to their needs than those who live in Perth or Darwin.


Budget is another important factor that can affect the size and quality of your solar system. With a bigger budget, you can opt for solar panels with better efficiency and warranty support. A smaller budget can still bring you quality panels but with some compromises in several areas.

You can also opt for a green loan to fund the purchase and installation of approved solar system components. Since the purpose is to promote a more sustainable future, green loans are usually offered at a lower interest rate than traditional ones. The bottom line is that an initial investment is a requirement for solar panels for a house.

Roof condition

Residential solar systems are generally installed on the rooftop. Therefore, a sturdy and stable roof to house your solar panels is an important requirement. So before you proceed to estimate the size of your roof or even install a solar system there, you may want to check its condition and structural integrity first.

Roof size

The available space on your roof will determine how many solar panels you can fit in your system. With limited roof space, you will have fewer options to choose from when it comes to solar panels. But don’t fret. With advancements in solar technology, many solar panels come with high power output now, making it easier to achieve a larger total output with fewer panels.

Solar panel orientation

Since Australia is located in the Southern Hemisphere, the most efficient orientation for solar panels is when they face north. East and west-facing rooftops are also effective thanks to Australia’s abundant sunlight. Optimal orientation is a key requirement for strong performance when it comes to a home solar system.


Solar panels require direct sunlight to effectively generate electricity, so shading from trees or buildings may reduce the effectiveness of your solar panels. You may want to consider installing solar panels away from those potential shades to yield energy more effectively. You may be required to trim back existing trees, if permitted.

Local laws and building codes

Solar panel installations are generally supported and encouraged by local councils in Australia. However, there are some basic council approval requirements that you should be aware of, including building codes and standards. These standards cover aspects such as structural integrity, electrical safety, and fire safety.

In addition, you need to use solar components approved by the Clean Energy Council to qualify for a solar rebate. By complying with the local regulations and requirements, you can benefit from government incentives and avoid any potential issues in the future. Sticking to these requirements ensures that everything is safe and above board. If you have any questions, Sungain Solar is here to help.

The bottom line

Considering these requirements will help you build the perfect solar system for your home. If you have any questions about what to know about solar requirements for a house, don’t hesitate to contact us at Sungain Solar. We will gladly help you with inquiries and questions about solar as best as we can.

Looking for more information, give us a call or fill out the form below to speak with one of our friendly solar experts.

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