Why install Solar Panels on a Wall?

When and Why It’s a Smart Solution.

We usually think of solar panels on rooftops, in certain conditions, a wall installation can be even more productive? Façade-mounted panels offer unique advantages. They can improve year-round energy production, reduce maintenance needs, and integrate seamlessly into modern architecture.

Let’s explore why wall installation is not just a sensible choice, but often a highly profitable one.

1. Better Winter Production and Natural Snow Shedding

One of the biggest advantages of vertical installation in climates like in the Nordics is winter performance. Snow naturally slides off vertical surfaces, so the panels remain uncovered and production downtime is minimized.
Furthermore, photovoltaic efficiency improves in cold weather, and low-angle winter sun can reflect off snow, boosting production even more.

2. Optimized Energy Production at Northern Latitudes

Vertical installations also align better with daily consumption peaks, as production is concentrated in the morning and afternoon hours when electricity use is often at its highest.

3. Putting Unused Façade Space to Work

Urban buildings have a vast amount of unused vertical space. Wall installations are an excellent way to increase solar capacity when roof space is limited or already in use. At the same time, a solar façade improves the building's energy rating.

4. Less Cleaning and Maintenance

Vertical panels collect less dirt, leaves, and bird droppings. Rainwater cleans them more effectively, which reduces maintenance needs.

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5. Architectural and Aesthetic Integration

In modern construction and renovations, vertical solar panels can be integrated into the façade stylishly and discreetly. For many property owners, a clean and uniform appearance is an important factor that can also increase the property's value.

As the green transition moves forward, wall installations are also becoming popular across Europe. Especially in winter, when the sun is low in the sky, façades capture sunlight at a better angle than low-sloped roofs. This balances seasonal fluctuations and improves energy self-sufficiency precisely when energy demand is highest.

A prime example of untapped potential can be found along Germany's motorways, where the massive, empty walls of logistics centers and industrial buildings are waiting to be harnessed for solar energy production.

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The Key to a Successful Installation is a Quality Mounting System: RAULI WALL

Choosing the right mounting system is critical for a safe and durable result. Designed in Finland, RAULI WALL is a top-tier solution developed for this purpose. It is manufactured from high-strength SSAB steel and comes with a 30-year warranty.

Its innovative design allows for quick and safe installation on various wall materials. The stylish "ALL BLACK" look complements modern architecture, but the system can also be ordered in any RAL color to perfectly match any façade's appearance.

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Summary: The Key Benefits of Vertical Installation

Wall-mounted solar panels are not just an alternative; in many cases, they are a superior solution.

• Consistent winter production and low maintenance.

• Optimized energy yield.

• Effective use of untapped façade surfaces.

• Stylish architectural integration and a better energy rating.

By choosing a high-quality, tested mounting system like RAULI WALL, you ensure that your solar power plant is not only productive but also durable and safe for decades to come.