Solar systems inevitably take up quite a bit of space, and not every homeowner has enough room on their roof. Understanding the different solar panel sizes is crucial to determine how many can be installed on your property, as well as their overall energy output. In this article, we’ll take a look at everything you need to know about solar panel sizes in Australia, as well as why size is a crucial consideration when it comes to installing a new solar panel system.
Solar panel sizes in Australia – how big are they?
Solar panels are made up of small elements known as solar cells. These solar cells are the primary component in converting sunlight into electricity via the photovoltaic effect.
The more solar cells there are in a panel, the greater the amount of solar energy that can be converted into electricity. The most common solar panels for residential use are typically around 60-cell and 72-cell, while commercial solar panels often hold up to 96 cells.
This is a size chart for solar panels based on their cell design:
|3.3 – 4 cm
|3.3 – 4 cm
More cells mean more power output, and it also means a larger panel. While 60-cell solar panels can generate 270 to 350 watts of power per panel, 72-cell panels can average power generation of 350 to 450 watts, depending on the manufacturer.
How much do solar panels weigh?
Solar panels can be quite heavy. Therefore, it’s critical to measure individual and accumulated weight to ensure that your roof can support your new system. The weight of a solar panel depends on its type and materials used in its construction. However, in general, a solar panel can weigh between 18 and 27 kg, depending on the manufacturer.
Weight is a very important factor to consider, especially for older homes with aging or tiled roofs. If your roof is over 10 years old, you may want to wait until you replace it, or at the very least schedule a roof inspection to see if it can support a solar panel system.
What are the standard solar panel sizes in Australia?
60-cell and 72-cell are the standard solar panel sizes for residential and commercial installations. Both of these sizes can fit on most Australian roofs and are relatively easy to install with expert help.
96-cell panels, on the other hand, are used mostly among commercial clients, as these panels are better suited for installation on commercial buildings, which usually have more roof space.
Each solar panel size has its own pros and cons – here’s a brief breakdown:
|More compact and fits better on a smaller roof.
|Less power output per panel so you will require more panels for more output.
|More power output at a relatively cheaper cost so it requires fewer panels for the same system size.
|Larger, which means it can be a challenge to fit many 72-cell panels on smaller roofs.
How many solar panels will I need?
The amount of solar panels you need depends on the size of your solar system and the panels that you elect to install. To give you an idea, here is the number of solar panels you need if you use Trina Duomax M Plus 315W solar panels for various system sizes:
|Solar System Size
|Approximate Number of Panels
Still unsure? Find out how big of a solar system you need at home.
What are the best solar panel sizes in Australia?
Selecting the best solar panel size for your home requires a careful balance between available roof space, budget, and energy requirements. Larger solar panels with higher wattages may generate more power, but they might not be the best fit if your roof has limited space or if you are on a tight budget. On the other hand, small panels might be more suitable for smaller roofs but you may require more panels to meet your energy needs.
How to find the best solar panel size?
Here are some steps to help you decide on the right solar panel size for your system:
Assess Your Energy Needs
Begin by understanding your average daily and monthly energy consumption. This information is crucial in determining the size and number of solar panels required to meet your electricity needs on a daily, quarterly, and yearly basis.
Evaluate Available Roof Space
Examine and calculate the available roof space at your home for solar panel installation. Consider factors such as shading, obstructions, and the orientation of your roof to maximise sunlight exposure. Larger panels may produce more power, but they require more space.
Set a Budget
Establish a firm budget for your solar installation and stick to it. While larger panels may generate more power, they often come with a higher upfront cost. Determine the ideal balance between cost and efficiency that fits your financial plan. Speak to a local solar panel expert for more information.
Account for Future Energy Needs
Try to anticipate any changes to your energy consumption in the future. If you plan to expand your household or add energy-intensive appliances, you might need a larger solar installation to accommodate increased energy demands down the track.
Consult with Solar Professionals
At Sungain Solar, we’re here to help you navigate the technical aspects of solar. We’ll ensure that you choose the most suitable solar panel size for your home and reap the associated benefits of a quality system.