Solar roofs from Sonnenexpert

Solar roofs as a green energy supplier

A solar roof works by converting sunlight into electrical energy. Special photovoltaic modules consisting of many solar cells are installed on the roof. These solar cells are usually made of silicon and are capable of absorbing the sun's rays. When sunlight hits the solar cells, they generate an electrical voltage – a process known as photovoltaic conversion. The generated direct current is converted by an inverter into usable alternating current that can be used in your home or business. Excess energy that isn't immediately used can be stored in batteries or fed into the public grid, generating additional income. The whole process works automatically as long as sunlight is available. A solar roof is therefore a sustainable and environmentally friendly solution for generating clean energy that both protects the environment and reduces your energy costs. With a well-planned solar roof, you can actively contribute to climate protection while reaping the benefits of renewable energy.

The roof for energy supply

To ensure optimal performance of your Sonnenexpert photovoltaic system on your commercial roof, there are several important requirements that must be met. Here are the key points:

1. Sun exposure: The roof should receive as much direct sunlight as possible, ideally without significant shadows from trees, neighboring buildings, or other obstructions. A south-facing orientation is generally best, but other orientations can also work well.
2. Roof pitch: A suitable roof pitch, usually between 20 and 40 degrees, ensures optimal solar radiation. For flat roofs, the pitch can be adjusted using special mounting systems.
3. Roof condition: The roof should be in good condition, stable, and watertight to ensure safe installation and a long service life for the solar modules. If the roof is old or damaged, it should be repaired or replaced beforehand.
4. Roof material: Most solar modules can be installed on various roof materials, such as tiles, sheet metal, or bitumen. It's important that they can be securely mounted.
5. Space: There should be enough free space to install the desired solar modules without any shadows or other obstacles.
6. Static: The roof must be able to support the additional load of the solar modules and mounting systems. If there is any uncertainty, a structural test should be conducted.
7. Accessibility: For maintenance and cleaning, it is helpful if the roof is easily accessible.

If these requirements are met, nothing stands in the way of an efficient and long-lasting solar system on your roof. Contact us, and we will review your project for a solar roof on your commercial roof area. Also check out our offers for solar systems for your home at our Fri EnergyThere you will find everything you need for your private solar system on the roof. 

Good reasons for solar roofs

A solar roof makes sense for several good reasons, and many homes and businesses are choosing it because of its both environmental and economic benefits. Here are some of the most important ones:

1. Environmental Protection: A solar roof produces clean, renewable electricity that produces no harmful emissions. This helps reduce CO₂ emissions and protect the environment.
2. Cost Savings: By generating your own electricity, you can significantly reduce your electricity bill. After the initial investment, the system often pays for itself within a few years.
3. Independence: With a solar roof, you're less dependent on energy providers and fluctuating electricity prices, giving you more control over your energy costs.
4. Increase in value of the property: Homes with solar roofs are often more attractive on the real estate market and can increase the value of your property.
5. Funding opportunities: There are government funding programs, grants, or tax advantages that make the investment even more attractive.
6. Long-term security: Solar roofs are durable and low-maintenance, providing a reliable energy source for many years.
7. Contribution to the energy transition: By using solar energy, you are actively contributing to reducing dependence on fossil fuels and promoting a sustainable energy future.

High-quality solar roofs last a long time

A solar roof can usually last a very long time and produce reliable electricity. Most high-quality solar modules have a lifespan of around 25 to 30 years. Many manufacturers even offer warranties of up to 25 years or more, demonstrating that the modules can still perform well even after this time.

After these years, the efficiency of the modules may decrease slightly, meaning they may produce slightly less power than they did initially. Nevertheless, they are often still functional for many years afterward and can be used again if necessary through maintenance or the replacement of individual components.

The longevity of a solar roof also depends on the quality of the materials, installation, and maintenance. With proper care and high-quality workmanship, a solar roof can easily last 30 years or even longer.

Costs for solar energy that pay off

Installing a solar roof requires various investments, which can vary depending on the scope and size of the system. Here are the most important cost points:

1. Photovoltaic modules: These are the solar modules themselves, which convert sunlight into electricity. They make up the largest part of the investment.
2. Mounting systems: The brackets and fasteners for securely installing the modules on the roof. These vary in price depending on the roof type.
3. Inverter: The device that converts the generated direct current into usable alternating current. It is essential for the operation of the system.
4. Other possible costs: Cables, fuses, mounting materials, and possibly battery storage if desired. Ongoing costs for maintenance, cleaning, and appropriate insurance for the system. Any fees for building permits or registration with the grid operator.