Choosing between a solar ground mount or a solar roof mount is a key decision for homeowners and businesses in Wisconsin. Each option offers distinct benefits and considerations based on your property, energy needs, and preferences. Here’s an in-depth look to help you make the right choice.
Solar Roof Mounts
Roof-mounted solar systems are the most common type of solar installation and an excellent fit for many properties in Wisconsin.
Benefits of Roof Mounts
- Cost-Effective: Roof-mounted systems are typically less expensive than ground mounts. Since the roof provides the base structure, additional materials like racking and posts aren’t needed.
- Space-Saving: Roof mounts don’t take up any ground space, leaving your yard or land open for other uses.
- Efficient Use of Sunlight: South-facing roofs are ideal, but east- and west-facing roofs can also work well, especially with advancements in solar panel technology.
- Close Proximity to Interconnection Points: Roof mounts are usually closer to your electrical service panel and utility meter, minimizing wiring costs. However, even if your interconnection point isn’t ideal, there are plenty of options and workarounds to make it work.
Considerations for Roof Mounts
- Roof Condition: If your roof will need replacing soon, it’s best to address that before installing solar. Removing and reinstalling panels can add to the cost.
- Limited Adjustability: The tilt and angle of the panels depend on your roof’s slope, which might not always be the optimal angle for solar production.
- Snow Load: Wisconsin winters can mean snow buildup on panels. While snow naturally slides off as it melts, some roofs may experience temporary production delays during heavy snow.
Solar Ground Mounts
Ground-mounted systems are a great option for properties with ample open space and offer unmatched efficiency.
Benefits of Ground Mounts
- Highest Efficiency and Production: Ground mounts can be installed at the optimal angle and direction to capture the most sunlight year-round. They’re the most efficient option, often providing higher energy output compared to roof mounts.
- Easier Snow Removal: Snow can be easily brushed off panels on a ground-mounted system, ensuring your system continues to produce electricity even after a fresh snowfall. Plus, the reflection of sunlight off the snow can boost solar production.
- Flexibility in Placement: With no roof limitations, ground mounts can be placed in the sunniest spot on your property for maximum energy generation.
- Maintenance Access: Being at ground level makes it easier to clean, inspect, and maintain the panels.
Considerations for Ground Mounts
- Land Use: Ground mounts require sufficient space. For reference, a typical 12kW ground-mounted system (about 30 panels) takes up approximately 45 feet in length by 12 feet in width. This makes them ideal for rural properties or large lots, but they may not be suitable for urban or small suburban spaces.
- Higher Initial Cost: Ground mounts require additional racking, posts, and wiring, as well as possible land preparation, making them more expensive upfront compared to roof-mounted systems.
- Snow Accumulation: While snow may initially pile up on the panels, the flat placement near the ground and optimal tilt help reduce this concern. Many ground-mount systems produce impressively well, even during snowy winters, thanks to sunlight reflecting off the snow.
Key Factors to Consider in Wisconsin
- Weather Adaptability: Wisconsin’s snowy winters and varying sun exposure make system design critical. Both roof and ground mounts can be tailored to perform well in these conditions.
- Incentives and Savings: Both system types qualify for Wisconsin’s robust solar incentives, including federal tax credits and local grants like Solar for Good and Solar on Schools.
- Energy Needs: Ground mounts are ideal for larger systems to meet higher energy demands, while roof mounts are better suited for smaller-scale residential systems or properties with limited ground space.
Which System is Right for You?
At Lydon Solar, we understand the unique needs of Wisconsin homeowners and businesses. Whether you’re looking for a cost-effective roof-mounted system or a high-production ground-mounted system, we’ll work with you to design and install a setup that fits your property and goals.
Ready to learn more? Contact us today for a free consultation and let’s start planning your solar future!