How to calculate roof space for solar panels on a Class A RV?

Measuring Roof Space

To measure the available roof space for solar panels, start by taking precise measurements of the roof’s length and width in feet. Record the dimensions, and then calculate the square footage by multiplying these values. For example, if the roof is 24 feet long and 10 feet wide, the available space is 240 square feet. Next, consider the obstacles such as vents, antennas, and skylights that will need to be avoided.

Determining Minimum Required Space

To determine the minimum required space, consider the desired system’s wattage and the efficiency of the solar panels. As a general rule, a 1 kW solar panel system requires about 80-100 square feet of space. However, this can vary depending on the type of solar panel and the amount of power needed. A more efficient 400-watt solar panel might require only about 50 square feet of space, while larger panels with lower efficiency might require more space. To calculate the space required, use the following formula: Space Required (square feet) = System Wattage (kW) / Panel Efficiency (watts per square foot) / 2 (to account for space between panels).

Planning for Additional Space and Obstacles

When planning for solar panel installation on a Class A RV, consider the need for additional space between panels for airflow, wiring, and future maintenance. Also, take into account any obstacles that may affect the solar panel’s performance, such as nearby skylights or vents that could cast shade on the panels. To ensure optimal performance and a safe installation, consult with a professional solar installer who has experience with RV solar systems.