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How to select the best affordable solar panels for your home

If you are aiming for a solar installation in Australia that gets you quick returns on investment, affordable solar panels are your thing. Simply because affordable solar panels will entail a lower upfront cost, it shall also be quicker to recover. When looking for the best affordable solar panels for your home, you want to consider these important factors – panel type, conversion efficiency, warranty, and cost.

Panel Type

There are three PV panel types: monocrystalline, polycrystalline, and thin film.

Despite being the most expensive of all panel types, monocrystalline solar panels are preferred for most residential solar panel plants due to their pleasing all-black aesthetics and high efficiency rates. Constructed with a single silicon crystal, these are the most efficient solar panels of all types.

Polycrystalline panels are developed with simpler production processes using an older solar technology that combines multiple silicon crystals together by melting. These are more affordable solar panels compared to monocrystalline panels and have lesser efficiency than them.

Thin film panels are the simplest and cheapest to manufacture. They are the least durable solar panels of all types, hence the least popular too.

Conversion efficiency

When making solar panel comparisons, panel efficiency is a vital factor to consider. Efficiency is the ability of the module to convert sunlight to electricity.

The higher the efficiency rating of the panels, the more energy output you can expect from them. Therefore, you want the most efficient solar panels that your budget allows.

The range of efficiency ratings of most solar panels on the market is between 16 to 22 percent. The higher the conversion efficiency, the higher the quality and price of the panel.

When looking for affordable solar panels, you want the panels to be economical in price as well as efficient in performance. Select a high-quality panel that offers about 17 to 19 percent efficiency.


Solar panels have two warranties: one on the panel and the other on its performance.

The manufacturer’s warranty (product warranty) protects against any build defects, premature wear and tear, and environmental damage. Usually, manufacturer warranties last 10 to 12 years. And some manufacturers offer warranty extensions of up to 25 years and more.

The performance warranty is the energy output guaranteed from your panels after a specific number of years. Typically, a performance warranty assures 90 percent panel output at 10 years and 80 percent at 25 years. However, there are a few panel brands that guarantee 90 percent and more efficiency at 25 years failing which they shall replace your panels.


The type of panels you choose, their efficiency rating, and their warranty all impact the total cost of your solar panels. Top-end monocrystalline panels that offer 21% efficiency will obviously cost you more than a set of economical polycrystalline panels with a 16% efficiency rating. High-end panels cost higher and therefore offer better warranties too.

Some other important points to consider while selecting the right panels for you are:

  • Shade and hindrances on the roof that can reduce panel efficiency
  • Roof size and number of modules it can accommodate
  • Number and wattage of solar panels to cover your energy needs which can be estimated from your utility bills
  • Roof direction and inclination for optimal sunlight


While searching for the perfect solar panels, assess the efficiency, warranty, longevity, and complete cost. However, let not price determine your final decision but the combination of all the factors discussed above. Work with professional solar installers in Australia to find the ideal solar solutions for you as they can suggest the best options according to your energy requirements and budget.

Get in touch with Solar Power Nation for expert solar installations in Australia at authentic prices.

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