When installing solar PV panels, the best roof location is one that maximises the amount of sunlight the panels receive throughout the day. Here are some factors to consider when determining the optimal roof location for solar panel installation:
Orientation and Tilt: The ideal orientation for solar panels is facing south, as it receives the most sunlight over the course of a day. Different roof pitches and materials can affect the installation and efficiency of solar panels. Generally, roofs with a pitch between 15 to 40 degrees are ideal for solar installations. On roofs that aren’t steep (15-20 degrees), and that don’t exceed 10 degrees to the north from perfect east or perfect west, then solar is possibly a viable option, however the panels will generate less energy than if they were facing south. As for roof materials, the most straightforward installations are typically on concrete, clay and slate tiles.
Shading: It’s essential to place the solar panels in a location with minimal shading. Even partial shading on just a few solar cells can significantly reduce the overall energy output of the entire system. Shading can come from nearby trees, buildings, chimneys, or other obstructions. Conducting a shading analysis before installation can help identify potential issues.
Structural Integrity: The roof must be structurally sound enough to support the weight of our solar panels. If there are any concerns about the roof’s integrity, a professional structural assessment should be carried out before installation.
Local Climate: The local climate plays a role in determining the optimal roof location. Areas with more sunlight throughout the year will generally yield better results for solar energy production.
Aesthetics: While aesthetics may not directly affect the performance of the solar panels, they can be a consideration for some homeowners. Placing the panels on less visible areas of the roof or using solar tiles that blend in with the roof can be options to maintain a pleasing appearance.
Local Regulations: Be aware of any local regulations, homeowner association rules, or building codes that may dictate where solar panels can be installed on the roof.
In summary, the best roof location for solar PV installation is typically one that faces south with minimal shading and a suitable roof pitch and material. Our technical advisors can help assess your specific roof and location to determine the best setup for your solar PV system.