Top Factors to Consider Before Installing Solar Systems on Your Rooftop

Top Factors to Consider Before Installing Solar Systems on Your Rooftop
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Essential solar factors to consider

Every major and significant home improvement purchase takes careful thought and planning. It’s no different when it comes to purchasing and installing a solar system.

More so, because it is a very substantial investment, making it critical to do precise calculations and understand everything there is to know about the product and its features.

In saying that, here at DQ Electrical and Solar we have developed a list of the top factors to consider before installing solar systems on your rooftop.

Solar Panel Options

The performance of your solar panels and the quality of the inverter are, without a doubt, key solar priority factors when choosing a solar system.

Solar modules will be exposed to thousands of hours of continuous sunlight, fluctuations of heat and moisture, wind, rainfall, storming, and other elements over the course of its 25-year output warranty.

When looking for the greatest deal on a solar panel and its payback period one of the things that will distinguish different installers is the type and brand of the photovoltaic panel they recommend for the install.

Therefore, one must consider numerous factors in regards to picking the right panel. In saying this, here are the major solar priority factors to consider:

  • Efficiency – Solar Panels come with different efficiencies. The panels with a higher efficiency allow you to install a larger system on your roof. This can be important if your roof space is restricted.
  • Warranty – When it comes to solar panels, the warranty is a crucial factor to consider. It could be a sign of the manufacturer’s faith in its products. However, you should acknowledge that warranties are only valid for as long as the company is in business.

    In Australia in the last decade over 400 solar panel manufacturers promised long warranties, but then left our shores, leaving customers stuck with failing panels in the millions. DQ Electrical and Solar only recommend proven and large manufacturers who have stood the test of time.

    For example, we are an authorized partner of LG Electronics’ solar division. LG due to its massive size and strong local business footprint can offer a meaningful product warranty, which many others can not. It’s a peace of mind offer.
  • Price – Solar panels are not created equal. The cost of a panel is determined by its size, brand reputation, input material quality, durability, warranty, and any certifications it may have. Choosing solar panels only on the basis of cost is never a good option.

    If you skimp on quality, you might not get the long-term savings you want. Therefore, while sticking to a budget is vital, you should always purchase solar panels that best suit your needs rather than those that are the cheapest. DQ can give you solid advice, so ask us for help.
Solar Panel options in Adelaide

The Inverter

Solar panels create DC (direct current) electricity, whereas your home utilises AC (alternating current) electricity.

The inverter converts the DC electricity generated by the solar panels into AC electricity that can be consumed in your home or fed back into the grid.

Before choosing an inverter, you must also understand that there are two types of inverters, these being a string inverter and a microinverter.

All of your solar panels are connected to a string inverter, which is mounted on your wall, whereas each solar panel has a microinverter or optimiser on the back of it, placed on the roof.

Your personal setup and budget will determine whether you use a microinverter or a string inverter.

Microinverters are suitable for installations where one or more panels are partially shaded, whereas string inverters are less expensive and best for roof sections that are exposed to direct sunlight for the majority of the day.

Consider the inverter to be the system’s beating heart. It works hard all day and is the component of your solar power system that is most likely to fail during the first ten years of installation.

Even if you are on a budget, the inverter is one component of the system you shouldn’t skimp on.

Mounting Frame

It’s difficult to notice how solar panels are fastened to a roof from the perspective most people have of them.

Because they are not visible, most people don’t think about the mechanics that hold their solar panels onto the roof.

Many people also do not appreciate the danger if panels are not mounted properly, especially during a strong storm.

Most individuals are not very concerned about mounting and racking systems because they are relatively hidden.

Unfortunately, racking and mounting systems, unlike solar panels, are not celebrated or explored because they are not a “money maker” or “energy producer.”

However, you need to make sure your solar panels are properly fastened to your roof. Solar panels are mounted to roofs using a mounting system that includes tiles, frames, railings, and tin feet.

Again, there are a variety of mounting brands available; choose one that is wind approved and has a least 10-year warranty.

The mounting method for solar panels is critical since it connects the system to your roof. Solar mounting systems must be able to keep the system attached to the roof for up to 25 years.

The system must be able to handle wind loads as well as extremes of heat, cold and corrosion.

Placement and Direction

There are three major factors to consider when deciding whether solar is right for your residence: module direction, module angle, and possible shading.

Solar panels that face north receive the most sunshine during the day and hence create the most electricity.

If installing north-facing solar panels on your roof isn’t practicable, you can still profit from east and/or west-facing panels.

East-facing panels will generate the most of their energy earlier in the day, whereas west-facing panels will generate more often in the afternoon.

Since these are the times that many of us are at home and in summer use air-conditioning, it means a west-facing panel is often a very good option to create maximum savings.

What is the best angle for your solar panels?

Module Angle

The best angle for your solar panels is technically determined by your location.

In most circumstances, however, the best angle for your solar panels is simply the angle at which your roof is positioned.

Any alternative installation angle will cost more than the extra energy yield will give you.

Ensure that the angle is steep enough to keep the panels decently clean and allows for rain water to run off, which normally necessitates at least a 10° slant.

Possible Shading

Consider the amount of light that reaches your roof. Solar panels must be exposed to the sun for the most, if not all of the day in order to produce electricity efficiently.

The performance of your solar system will be harmed by shading from trees, electricity lines, or surrounding buildings.

In fact, a shadow cast on only a small portion of one panel might jeopardise a large amount of the solar system’s output.

This means that you should try to make sure that your panel’s exposure is not interrupted by unnecessary shade.


Solar panels will almost surely save you money in the long run, and the longer you stick with renewable energy and the better quality the gear, the more long-term savings you will achieve.

It is not unheard of to gain a 20% return on the initial investment for many years to come.

The more you will save as your electricity bill decreases. However, there are certain expenses to consider. Firstly, the initial investment for the solar solution.

This means you should think about whether you can afford to pay for this expense directly or if you consider finance. In our low-interest environment, extremely competitive finance offers are available.

Then there is the installation process which will almost certainly include employing a professional, like DQ Electrical and Solar in Adelaide. Please note a one-time fee may be charged if you need to undertake switchboard upgrades.

The simplest payment strategy is to pay upfront, but if you do not have several thousand dollars on board, solar loans are another viable choice, and again DQ can help.

Rebates and Taxes

While solar panels may appear to be costly, especially when considering the large upfront expenditures, bear in mind that certain regions offer opportunities to motivate you in going green.

Federal and State Government Rebates and tax credits can help you save money on your solar purchase.


Solar panels are growing more popular and are suitable for many homes and businesses on many budgets.

For many people, solar panels will mean lower power costs for years to come, a reduced carbon footprint, and less reliance on the traditional grid, especially if a solar and battery bundle is being considered.

So make a decision to find out more and call DQ Electrical and Solar on 08 7160 0127.

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