Rooftop vs Ground Mount Solar

Comparing Rooftop and Ground Mount Solar Systems

Choosing the right solar installation method is just as important as selecting the best panels. The two main options are rooftop solar and ground mount solar. But how do you decide which is right for your property?

Each has its own advantages and challenges, and your choice depends on your property layout, budget, and energy goals.

At MPV Solar, we have over three decades of experience leading the residential and commercial solar market. While rooftop solar suits most homes due to its cost-effectiveness and ease of installation, there are specific scenarios where ground mount solar might be a better fit.

In this article, you’ll learn about:

What is Rooftop Solar?
What is Ground Mount Solar?
Comparing Rooftop and Ground Mount Solar
When Does Ground Mount Solar Make Sense?

This article will give you a clear understanding of both options and which solar system aligns best with your home and needs.

What is Rooftop Solar?

Rooftop solar involves installing solar panels directly onto your existing roof using specialised mounting systems. These panels are tilted for optimal sun exposure, usually flush with your roof surface.

Most homeowners choose rooftop solar because it maximises unused space, no additional land is needed and integrates seamlessly into the home, making it a cost-effective and straightforward option.

What is Ground Mount Solar?

Ground mount solar systems consist of panels installed on structures set into the ground. These can be fixed tilt systems, which are stationary at a set angle, or tracking systems that follow the sun throughout the day for increased efficiency. While tracking systems offer performance benefits, they are more costly and require more maintenance. Ground mount systems require dedicated land, which makes them ideal if you have extra property or want flexibility in panel placement.

Comparing Rooftop and Ground Mount Solar

Cost

Rooftop solar tends to be more affordable, often around $1.00 per watt, because it uses the existing roof structure.

Ground mount solar systems usually start at $2.00 per watt or higher due to added costs such as land preparation, foundations, and electrical trenching. Additional expenses like engineering permits and landscaping can further increase costs.

Efficiency & Performance

Under ideal conditions, both systems produce similar energy.However, ground mount setups can be better in shaded or challenging locations because they allow optimal tilt and orientation. Rooftop systems additionally reduce indoor cooling costs by shading the roof, offering an extra benefit beyond electricity generation.

Installation & Permitting

Rooftop solar installations are quicker and simpler, often completed within a day, and generally do not require council approval in many areas.

Ground mount solar systems involve more planning: soil testing, foundation work, permits, and possible disruption to your yard. The process can take longer and incur higher costs.

Durability & Maintenance

Both systems are durable and backed by long warranties.

Rooftop panels are harder to access for inspection and cleaning, but they require less ongoing maintenance.

Ground mount systems are easier to service, but they need regular landscaping, overgrown vegetation can shade panels and reduce efficiency.

Aesthetics & Space

Rooftop solar is less obtrusive, blending into the roofline and not affecting your view.

Ground mount panels are more noticeable and may impact the visual appeal of your property, especially if installed at eye level.

When Does Ground Mount Solar Make Sense?

While rooftop solar suits most homes, consider ground mount options if:

Your roof is heavily shaded by trees or structures
Your roof is in poor condition or not structurally sound
You want to incorporate solar into structures like carports or shelters
You have abundant unused land and no aesthetic concerns

Which Solar Power System Is Right for You?

For most homeowners, rooftop solar remains the most cost-effective and convenient choice. It’s easier to install and provides excellent energy gains.

However, if your roof isn’t suitable or you have ample land, ground mount solar can be a valuable alternative. At MPV Solar, we offer both solutions and can help you determine which installation best fits your property and goals.

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FAQs about Rooftop vs Ground Mount Solar

Your questions about rooftop vs ground mount Solar answered.

What are the key differences between ground mount and rooftop solar systems?

Ground mount systems are installed on the ground, offering flexibility in positioning for optimal sunlight capture. Rooftop systems, on the other hand, are installed directly on the roof, utilising existing space without requiring additional land.

Which type of solar installation is more efficient?

Ground mount systems typically allow for optimal tilt and orientation, maximiding sunlight exposure and potentially increasing efficiency. However, efficiency for rooftop systems can vary depending on roof angle, orientation, and shading.

Are ground mount solar systems more expensive to install than rooftop systems?

Generally, ground mount systems may have higher upfront costs due to additional materials and labor required for mounting structures and potential site preparation. Rooftop systems can be more cost-effective since they use the existing roof structure.

What site considerations should be taken into account for each installation type?

Ground mount installations require available land, whereas rooftop systems depend on the roof’s condition, size, and load-bearing capacity. For ground mounts, factors like soil type, shading, and accessibility are important, while rooftop systems must consider roof age and potential obstacles.

Which system is easier to maintain?

Ground mount systems are often easier to access and maintain since they are at ground level. Rooftop systems may require more effort for maintenance due to roof access challenges, but both types benefit from regular cleaning and inspections.

Can both ground mount and rooftop systems be used in the same solar project?

Yes, combining both types can maximise energy production, especially on properties with limited roof space or varying sun exposure. This approach allows for flexibility in system design and output optimisation.

MPV Solar is committed to providing industry-leading solar energy solutions across Sydney, backed by a proven track record of successfully completing over 5,000 projects. As a family-owned business, we prioritise personalised service and truly value our clients, ensuring that each system is tailored to meet your unique energy needs.