When installing solar panels on the rooftop of a vehicle like a Tesla Model Y, the decision between laying them flat or lifting them ultimately depends on several important factors. Here’s a breakdown:

1. Laying Solar Panels Flat

Pros:

• Aerodynamics:

  Keeping the panels flat not only minimizes drag but also helps preserve the vehicle’s efficiency, particularly when traveling at high speeds.

• Aesthetics: Flat panels are more visually appealing and blend seamlessly with the vehicle’s design.
• Ease of Installation: Flat mounting is simpler and requires fewer accessories.
• Clearance Issues: No risk of panels hitting overhangs or low-clearance areas.

Cons:

• Heat Buildup: Panels laying flat may trap heat between the roof and the panel, slightly reducing efficiency.
• Reduced Airflow: Limited airflow can lead to overheating, impacting performance.

2. Lifting Solar Panels

Pros:

• Improved Cooling: Lifting the panels allows airflow underneath, reducing heat buildup and improving efficiency.
• Optimal Performance: Proper cooling enhances the longevity and performance of the panels.
• Adjustable Angles (Optional): Lifting mechanisms can enable angling panels for better sun exposure when parked.

Cons:

• Aerodynamics: Raised panels increase drag, potentially reducing vehicle range and efficiency.
• Aesthetics: Lifted panels may disrupt the sleek appearance of the Tesla.
• Complexity: Requires brackets or mounting systems, which can add weight and installation complexity.

Recommendation for Rooftop Tesla Solar Panel Installation

1. For On-the-Move Use:
   • To begin with, keep the panels flat to maintain aerodynamics and efficiency while driving.

   • Additionally, use heat-dissipating adhesive materials or thin spacers to allow for minimal airflow, all without significantly raising the panels.
2. For Stationary Use:

   • If the vehicle is frequently parked for charging, you might want to consider a removable or slightly lifted mounting system. This would not only allow for better airflow but also enable angle adjustment to optimize solar exposure.

Best Practice:

• Flexible Solar Panels: These are designed to be installed flat and work well in vehicle applications.
• Spacers or Mounts: Use low-profile spacers (1–2 cm) to enhance airflow and reduce overheating while maintaining a flat appearance.

To enhance airflow and cooling for your flexible solar panels on the Tesla Model Y’s roof, incorporating thin spacers  and 3m VHB tape is a practical solution. 

3M VHB Tape First, make sure the vehicle’s roof is thoroughly clean and completely dry. Afterward, you can proceed to carefully apply the adhesive or mounting accessories to ensure a secure installation. This tape offers strong adhesion and can conform to the contours of the roof, ensuring a secure attachment without the need for mechanical fasteners.

DIY Solar Power – Made Easy!

Tesla Solar Panel Installation Tips:

• Surface Preparation:  To begin, ensure that the vehicle’s roof is thoroughly clean and completely dry. Only at that point should you proceed to carefully apply any adhesive or mounting accessories to ensure proper attachment.
• Panel Placement: Position the spacers or tape to create a uniform gap between the panel and the roof, promoting airflow and reducing heat buildup.
• Secure Attachment: Follow the manufacturer’s instructions for applying adhesives or installing spacers to ensure a secure and durable installation.

By utilizing these spacers and mounting accessories, you can effectively enhance the performance and longevity of your flexible solar panels on the Tesla Model Y.