Ground-Mounted vs Roof-Mounted Solar Panels: Which Should You Choose?
One of the first decisions in a home solar installation is between roof-mounted and ground-mounted solar panels, also called photovoltaics. Each option has unique advantages, drawbacks, and costs that can impact your energy production, budget, and maintenance needs for decades to come.
Whether you’re looking for maximum efficiency, lowest installation cost, or the best fit for your property, understanding the differences will help you make the right choice for you.
Understanding Roof Mount Solar Panels
Roof-mounted solar panels are a home solar system in which the photovoltaics are attached directly to a roof. The panels are attached by drilling and attaching racking systems to the roof's rafters. Finally, flashing is applied to ensure a watertight seal.
Advantages of Roof-Mounted Solar Panels
There are numerous reasons why roof-mounted photovoltaics are the most popular choice today. EcoFlow 100W Rigid Solar Panels are cheaper to install on rooftops because they require fewer structural supports, simpler wiring, and no groundwork expenses.
They are also an efficient utilization of space since they take up no additional space on your land, making them the only choice in many urban and suburban neighborhoods that don’t have large enough yards.
Disadvantages of Roof-Mounted Solar Panels
Still, there are both pros and cons of rooftop installations. One primary disadvantage is that they are not suitable for all roofs. If your roof is particularly old, it should be replaced before you install panels. If you need to install a new roof before the solar panels need to be replaced (25+ years), it will cost extra money to have them removed and then reinstalled on the new roof.
When to Choose Roof Mounts
Roof mounts are typically the perfect choice when cost-effectiveness or space-efficiency is your primary concern. Roofs in good condition are ideal, especially if they are already positioned for optimal sunlight exposure.
Exploring Ground Mount Solar Panels
Ground-mount systems are the primary alternative to traditional rooftop systems. They include a multi-step process for installation and construction, which may require additional permits, depending on where you live. The site is prepared, posts are cemented and buried in the ground, and the structure is assembled before the EcoFlow 400W Rigid Solar Panels are securely fastened.
Advantages of Ground-Mounted Solar Panels
For those with available land, ground-mounted systems offer several advantages. One primary advantage is enhanced customization, with better options for placement and tilt to optimize energy production.
The improved airflow around them helps prevent overheating, keeping them performing more optimally in hot conditions. They also allow for easy expansion if energy needs increase.
Since they’re easier to access, maintenance, cleaning, professional inspections, and repairs are faster, reducing long-term costs.
Finally, another benefit is the dual-use option that many don’t consider. Ground-mounted systems create shade in your yard, which you can use for livestock and gardens, called agrivoltaics. They can also create a shaded sitting area or a spot for an RV behind or beneath them.
Disadvantages of Ground-Mounted Solar Panels
The primary disadvantage of ground mounts is their higher upfront cost. They require more structural elements, groundwork, and more complex wiring.
The other disadvantage is the amount of space they take up, which can be prohibitive, especially in urban areas with small yards where they may be subject to zoning restrictions.
When to Choose Ground Mounts
The best time to choose ground-mounted systems is when you have sufficient unshaded land and want to maximize your photovoltaic output. They are also the best choice if your rooftop is unsuitable for solar due to its condition, orientation, shading, or other factors.
Ground vs. Roof Mount Solar Panels: Key Differences and Best Use Cases
Installation
Ground-mounts are more complex to install, requiring additional hardware and wiring. Roof-mounts tend to be easier to install, but it varies with the complexity of the roof.
Labor Cost
Since rooftop systems are usually easier to install, their labor costs tend to be cheaper. Ground systems, on the other hand, tend to cost 10-20% more due to the additional materials and labor required.
Efficiency
Ground-mounts offer more flexibility in orientation and tilt and receive more air flow, boosting efficiency. Roof-mounts are more space efficient, but the orientation of the roof limits their efficiency. However, you can boost output by using portable photovoltaic panels like the EcoFlow 110W Portable Solar Panel on a balcony or lawn.
Maintenance
Rooftop systems are more complicated to access for cleaning and maintenance, while ground systems have no such issues, making maintenance a breeze.
Expansion Potential
Ground mounts are much easier to expand as your energy needs grow.
Aesthetic
Most people find roof-mounts aesthetically pleasing, while some feel that ground mounts are not unless designed for dual-use.
Frequently Asked Questions
Is Ground Mount Solar Worth It?
Ground solar arrays often cost more to install, but they also tend to optimize energy production and make for much easier maintenance. Ultimately, it comes down to available land, the suitability of your roof, and personal preference.
Is It Better to Install Solar Panels on the Ground or Roof?
It depends on the roof and the availability of land for a ground-mounted system. Ground systems cost more but tend to be more efficient and easier to maintain. Roof systems are cheaper to install and may be easier to obtain permits.
How Far Can Ground-Mounted Solar Panels Be From Your House?
You want your system fairly close, as the further it is, the more it will cost due to increased wiring needs. Generally speaking, you want to be within 500 feet of your house.
Maximizing Your Solar Investment
Both roof-mounted and ground-mounted EcoFlow 400W Rigid Solar Panels offer viable paths to clean, renewable energy. However, your best choice depends on your property, budget, and long-term goals.
Roof systems excel in cost-effectiveness and space efficiency, while ground mounts provide flexibility, higher potential output, and easier maintenance. By weighing installation complexity, efficiency, accessibility, and expansion potential, you can choose a solar panel system that meets your energy needs for years to come.