What are the best places to install solar panels around the house?

While initially solar panels were primarily installed on roofs, today they can be found in almost every area of the house and its surroundings. The roof is still the classic installation site, but many other locations such as facades, balconies, terraces, gardens, and standalone solar installations have also become popular.

In this article, we will discuss the advantages of installing solar panels on roofs as well as the possibility of installing solar panels on balconies and terraces. We will also cover facade-mounted solar panels, the use of solar panels in gardens, and the advantages of standalone solar installations on properties. Finally, we will summarize the key points.

Roof Installation: Advantages and Challenges

Roof installation is a classic method of mounting photovoltaic panels. Roofs are elevated, offer large surfaces, and are often angled, allowing panels to receive ample sunlight throughout the day. Additionally, modern monocrystalline solar panels are aesthetically pleasing due to their dark appearance and do not detract from the look of the property. Another advantage is that roof installations utilize existing space without impacting the usability of the property. A roof installation is also a good investment as it increases the value of the property and protects the roof structure.

On the downside, costs can be a challenge, although numerous federal and state grants are available. Roof installations can be more difficult to maintain, although solar panels generally require little maintenance. Before installation, the roof's structure should be assessed by a professional to ensure its suitability. Since roof installations typically exceed 800 W, they fall under building regulations and are subject to certain bureaucratic requirements.

Installation on Balconies and Terraces

A growing trend is the installation of so-called balcony power plants or small solar installations. These systems are limited to 800 W and do not fall under building regulations, meaning almost any property owner or tenant can theoretically install such a system. In 2024, the legislator removed many barriers and simplified bureaucratic processes, allowing simple balconies or terraces to be used for personal power generation. This can reduce CO2 emissions and significantly lower electricity bills. Installation is simple, and to start the system, you just need to plug it in. Most systems pay for themselves after a few years, depending on energy yield and electricity prices.

Solar Panels in the Garden: Creative Uses

The possibilities for using solar panels in the garden are nearly limitless. Options include solar carports, pergola roofs, greenhouses with solar panels, or garden fences with integrated solar modules. Automatic garden lighting with battery storage and light sensors is also becoming common. Each kilowatt-hour produced reduces electricity bills and protects the environment by reducing the use of fossil fuels.

Facade-Mounted Solar Panels: Solar Panels on Exterior Walls

Facade-mounted solar panels have been around for a long time, but only in recent years have aesthetic trends emerged that make facade installations look attractive. Modern facade installations integrate with the facade, adding aesthetic and functional value to the building. This allows for efficient use of free facade space. An additional benefit is the potential for improved thermal insulation in some installations. Like roof installations, facade installations increase property value and require some bureaucratic formalities if they exceed 800 W.

Standalone Solar Installations on Properties: Advantages and Disadvantages

The main advantage of standalone installations is the ability to optimally position the panels. These installations are typically mounted on frames, making them easy to access for maintenance. If the open space is large enough, the installation can be easily expanded. Standalone installations are also an alternative for buildings whose roofs are not suitable for mounting panels due to insufficient load-bearing capacity. However, the main disadvantage is that these installations occupy space on the property that might otherwise be used for other purposes. The costs for frames and additional cabling are also higher compared to roof installations.

Summary

Wherever you decide to install your solar system, there are professional solutions for almost all areas and applications. Key criteria for installation are orientation and the absence of shading throughout the day and all seasons. There are virtually no downsides to solar installations. Nearly every system pays for itself after about ten years, making the last 10-20 years of the system's lifespan pure savings. Below is a table that shows the average payback time for private solar installations over the last 20 years in five-year intervals.