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Ground Vs Roof

Roof Mount or Ground Mount?

Most people choose roof mounts by default. They cost less, take less time to build, and take advantage of unused space on your property.

Even though ground mounts have extra material and labor costs associated with the installation, they offer a number of benefits as well. Building your system at ground level makes it easier to clean, maintain and replace the equipment.

You also may discover that you don't have enough space to build your system on your roof, due to obstructions, sharp angles or simply a lack of roof space. In these cases, ground mounts may be your only option.

Likewise, if you don't have a yard (common if you live in a big city, for example)then the roof would be your only viable place to build.

Angle & Azimuth

Solar panels should point directly toward the equator for maximum exposure to the sun. If you live in German, you want to face your panels as close to true solar south as possible. If you live south of the equator, face them north instead.

East and west work at reduced efficiency, if you're building on your roof and can't change the orientation. (Never build a system facing away from the equator. It won't produce a significant amount of power.)
Roof Mount or Ground Mount?
Roof Mount or Ground Mount?


If at all possible, try to build your panels where they will never be covered by shade. Keep in mind that shadows grow longer in the winter, and try to anticipate how shadows from your house, trees, and other obstructions will cover the area where you plan to mount your panels.

Solar panels only output their rated efficiency in full sunlight. Shade not only reduces the production of the panel it touches, but it can also potentially hamper an entire string of panels depending on the kind of inverter you are using.

lf some shade is unavoidable, though, you can turn to micro-inverters or shade optimizers to address the problem. These systems provide shade mitigation and allow panels to produce energy independently from each other. If shade falls on a panel, the others in the string aren't affected.
Roof Mount or Ground Mount?


Solar panels don't require a ton of maintenance. It's smart to clean your panels occasionally so that dust, leaves, and other debris don't impact their production.

The good news is that precipitation often takes care of this process naturally. Rain or snow will remove debris when it slides off the panels. In heavy snow regions, pole mounts are useful for lifting your system above snow banks and tilting your panels so that snow slides off naturally.

In dry, dusty areas, we'd recommend wiping down and cleaning the face of the panels once a year. In more temperate regions, once every few years is fine. This becomes more important for lower tilt angles, where debris can more easily build up and pooling water might leave spots.
Roof Mount or Ground Mount?

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