We have a lot of customers asking for our advice when it comes to choosing between a roof mount or a ground mount for their off-grid solar setup, so in this article we will explain the differences between the two, and outline their benefits of each, to help you decide which mounting system is best suited for your off-grid project.
Ground mounts are usually the more popular option in an off-grid solar system, as you can freely adjust it to get the perfect alignment for max solar yield. There are several positives to choosing a ground mount system, as they are easier to clean, and the number and size of your solar panels size does not have to be restricted to the dimensions of your roof. It also gives you greater freedom to expand you solar system in the future.
However, ground mount systems are usually more expensive as they require more parts, and installation can be labour intensive due to the need to dig holes and pour concrete. It also takes up a lot more space than roof mounts! So, consider the ground mount if you have plans to expand your system in the next couple of years. Make sure your soil is suitable for installation as it can be extremely difficult to install when you have hard soil.
Roof mounts are very popular in grid-tied systems as they’re cheaper and easier to install. It’s also the best option if you have a limited amount of space, such as a small cabin or campervan. You save all the trouble of digging holes, sampling soils, working to government/council regulations, and you avoid purchasing expensive materials like concrete and poles.
There are downsides of the roof mounts too. They can be less efficient, depending on the position of your home, as well as being harder to clean and access. The biggest problem of all is the restraint on further expansions. The roof mount can be a good option if you’re working with limited space and have a structurally sound roof. You’ll enjoy the benefit of solar power while only paying a fraction of the cost to set it up.