Solar Panel Tilt Angle and Orientation. Solar panels perform best when they are angled directly towards the sun. The optimal tilt angle changes depending on your latitude and the season. Panels mounted flat on your van roof will produce less energy than those with an adjustable tilt, especially in winter.

Investing in the best campervan solar panels is an important decision for any kind of van or RV. Here's our buyers guide to the top solar panel options.

Attaching Flexible Solar Panels – Step by Step Guide. Installing flexible solar panels without drilling holes, we apply a thin layer of clear all-purpose silicone on the bottom of each panel for added strength and security.

A monocrystalline solar panel is more efficient and has become the industry standard when it comes to traditional solar panels in a van solar power setup. They have a black color (as opposed to a darker blue) and can typically collect a larger amount of solar energy in a much smaller space than polycrystalline solar panels.