Glass-glass solar modules

Glass-glass solar modules offer several key advantages compared to conventional modules with a film back:

Longer service life: The additional glass layer protects the sensitive solar cells better from moisture, UV radiation and mechanical influences. This leads to a significantly longer service life of up to 30 years, which in turn increases the profitability of the investment.

Higher performance: Glass-glass modules can withstand higher operating temperatures without sacrificing performance. This is particularly advantageous in warm and sunny regions, as energy savings can increase significantly.

Improved aesthetics: The smooth glass surface appears more modern and higher quality than the foil back of conventional modules. This can significantly improve the appearance of the roof and increase the value of the property.

Higher snow load: Due to their robust construction, glass-glass modules are significantly more stable and can therefore withstand higher snow loads than conventional modules. This is particularly important in snowy regions where traditional modules can be damaged by snow loads.

Hail protection: The additional glass layer offers improved protection against hailstones. Hailstorms can cause micro-cracks in the solar cells and permanently affect the performance of the modules. Glass-glass modules are significantly more resistant to hail and therefore offer greater security.

Other advantages: In addition to the points mentioned above, glass-glass solar modules offer other advantages, such as lower susceptibility to PID (Potential Induced Degradation) and improved recyclability.

Disadvantages: Glass-glass modules are slightly more expensive to purchase than conventional modules. However, the higher cost is offset by the longer lifespan, higher performance and lower maintenance costs over the years.

Conclusion: Glass-glass solar modules are a future-oriented investment for homeowners who are looking for a long-lasting, high-performance and visually appealing solar system. The advantages of glass-glass modules clearly outweigh the slightly higher purchase costs.

The prices for glass-glass solar modules vary depending on the manufacturer, model, performance and dealer. In general, however, the prices are slightly higher than other modules.

Please note:

• The prices for glass-glass modules have fallen steadily in recent years and are expected to continue to do so in the future.
• There are various funding programs that can provide financial support for the purchase of glass-glass solar modules. Find out from your responsible authority which funding programs are suitable for you.

Comparison to conventional modules:

Glass-glass modules are slightly more expensive to purchase than conventional modules with a film back.

However, the higher cost of glass-glass modules is offset by the following advantages:

• Longer lifespan
• Higher performance
• Lower maintenance costs
• Improved aesthetics
• Higher snow load
• Hail protection

Conclusion:

Glass-glass solar panels are a worthwhile investment for homeowners looking for a high-quality, long-lasting solar system. The slightly higher purchase costs are offset by the numerous advantages over the years.

Whether investing in glass-glass solar modules is worthwhile depends on several factors:

Advantages:

• Longer lifespan: Glass-glass modules last up to 30 years, while conventional modules only last 20 to 25 years.
• Higher performance: Glass-glass modules can work efficiently even at high temperatures, resulting in higher yield.
• Lower maintenance costs: Glass-glass modules are more robust and require less maintenance than conventional modules.
• Improved aesthetics: Glass-glass modules look more modern and higher quality than conventional modules.
• Higher snow load: Glass-glass modules can withstand higher snow loads than conventional modules.
• Hail protection: Glass-glass modules are more resistant to hail than conventional modules.

Disadvantages:

• Higher purchase costs: Glass-glass modules are slightly more expensive to purchase than conventional modules.
• Lower availability: Glass-glass modules are not yet as widespread as traditional modules, which can limit the choice of manufacturers and retailers.

Rule of thumb:

Investing in glass-glass solar modules is worth it if you are looking for a high-quality, long-lasting solar system and are willing to spend a little more money on it.

You should also note the following points:

• The prices for glass-glass modules tend to fall.
• There are various funding programs that can provide financial support for the purchase of glass-glass solar modules.
• The payback period of glass-glass solar modules is shorter than that of conventional modules.

Recommendation:

It is advisable to seek advice from a professional before investing in glass-glass solar panels. The specialist can help you find the best solution for your individual needs and provide you with a quote.

Glass-glass solar modules differ in various features, such as:

Cell type:

• Monocrystalline solar cells: Monocrystalline solar cells are the most efficient solar cells on the market and have the highest efficiency (up to 22%). However, they are also the most expensive.
• Polycrystalline solar cells: Polycrystalline solar cells are slightly less efficient than monocrystalline solar cells (up to 18%) and are cheaper.
• Perovskite solar cells: Perovskite solar cells are a new technology that has the potential to be even more efficient and cost-effective than monocrystalline and polycrystalline solar cells. However, perovskite solar modules are not yet available in series.

Perfomance:

Glass-glass solar modules are available in different performance levels, from 300 Wp to 500 Wp and more. The performance of the module should be adapted to individual needs.

Design:

Glass-glass solar modules are available in different colors and sizes. There are also partially transparent glass-glass modules that can be used as a roof for terraces or carports.

Manufacturer:

There are many different manufacturers of glass-glass solar modules. The best-known manufacturers include Hanwha Solar, JA Solar, Heckert Solar, Q CELLS and REC.

Selection criteria:

When choosing glass-glass solar modules, you should pay attention to the following points:

• Cell type: Monocrystalline solar cells are the most efficient choice, polycrystalline solar cells are cheaper.
• Performance: The performance of the module should be adjusted to individual needs.
• Design: Choose a design that suits your home.
• Manufacturer: Look for a reputable manufacturer with a good warranty.

Recommendation:

It is advisable to seek advice from a professional before making a purchase decision. The professional can help you find the best glass-glass solar panels for your needs.

There are many different manufacturers of glass-glass solar modules. The best-known manufacturers include:

• Hanwha Solar: Hanwha Solar is a South Korean company that has been producing solar modules for over 20 years. The company offers a wide range of glass-glass solar modules with monocrystalline and polycrystalline solar cells.
• JA Solar: JA Solar is another Chinese company that is one of the world's largest solar module manufacturers. The company offers glass-glass solar modules with monocrystalline and polycrystalline solar cells as well as perovskite solar cells (in development).
• Q CELLS: Q CELLS is a German company that specializes in the development and production of high-performance solar modules. The company offers glass-glass solar modules with monocrystalline solar cells that are characterized by high efficiency and a long service life.
• REC: REC is a Norwegian company that has been producing solar panels for over 20 years. The company offers glass-glass solar modules with monocrystalline solar cells that are characterized by high quality and a long warranty period.
• Other manufacturers: In addition to the manufacturers mentioned above, there are many other companies that offer glass-glass solar modules. These companies include Heckert Solar, Meyer Burger, LONGi Solar, Suntech and Hyundai Energy Solutions.

When choosing a manufacturer, you should consider the following points:

• Experience: Choose a manufacturer with many years of experience in the production of solar modules.
• Quality: Pay attention to high-quality materials and good workmanship.
• Performance: Choose a module with a high efficiency adapted to your needs.
• Warranty: Look for a long warranty period.
• Price: Compare offers from different manufacturers.

Recommendation:

It is advisable to seek advice from a professional before making a purchase decision. The professional can help you find the best manufacturer for your needs.

Installing glass-glass solar panels requires more care and expertise than installing traditional film-backed panels.

Please note the following points:

Before installation:

• Planning: Get advice from a qualified solar engineer when planning your solar system. The solar installer can help you determine the optimal size and orientation of the system and obtain the necessary permits.
• Statics: Make sure that your roof can support the static load of the glass-glass modules.
• Roofing work: Any roofing work, such as: Other tasks, such as the installation of roof battens and tiles, should be completed before the solar modules are installed.

Assembly:

• Specialist personnel: The installation of the glass-glass modules should only be carried out by qualified specialist personnel.
• Tools: Only use tools specifically designed for assembling glass-glass modules.
• Care: Be careful and careful when assembling the modules to avoid damage.
• Safety: Follow all safety regulations and wear appropriate protective equipment.

After installation:

• Inspection: Have the solar system inspected by an expert after installation.
• Maintenance: Run the solar system regularly according to the manufacturer's instructions.
• Insurance: Take out insurance for your solar system.

Additional information:

• Glass-glass modules are heavier than conventional modules. Pay attention to the increased risk of injuries when transporting and assembling the modules.
• The glass surface of the modules is sensitive to scratches. Avoid contact with sharp objects.
• Clean the modules regularly with a soft cloth and water. Do not use aggressive cleaning agents.

Recommendation:

The installation of glass-glass solar panels should only be carried out by experienced professionals.

Conclusion:

Installing glass-glass solar panels requires care and expertise. Please note the points mentioned above to ensure a safe and efficient installation of your solar system. If in doubt, seek advice from a professional.

Maintaining glass-glass solar modules is relatively easy and can be done yourself with a little manual skill.

Regular maintenance every 2 to 4 years is recommended to ensure optimal performance and service life of the solar system.

The following maintenance work should be carried out:

Visual control:

• Check the modules for damage, such as: B. Cracks, cracks or discoloration.
• Pay attention to dirt, such as: E.g. dust, leaves or bird droppings.

Cleaning:

• Clean the modules regularly with a soft cloth and water.
• Do not use aggressive cleaning agents as these can damage the surface of the modules.
• Avoid cleaning the modules in direct sunlight as this may cause water stains.

Electrical test:

• Have the electrical performance of the system checked by a qualified electrician.
• This should happen every 2 to 4 years.

More information:

• Follow the manufacturer's instructions for maintaining your solar system.
• Only use replacement parts recommended by the manufacturer.
• Do not carry out any maintenance work on the system if you are unsure. In this case, contact a professional.

Benefits of Regular Maintenance:

• Increased performance: Regular cleaning and maintenance of the modules optimizes the performance of the solar system.
• Extended lifespan: Regular maintenance helps extend the lifespan of the solar system.
• Lower maintenance costs: Detecting problems early can avoid expensive repairs.
• Increased safety: Regular maintenance helps to ensure the safety of the solar system.

Recommendation:

Regular maintenance of your glass-glass solar modules is important to ensure optimal performance and service life of the system. Carry out the maintenance work yourself or hire a professional.

Conclusion:

Maintaining glass-glass solar panels is simple and important. By regularly cleaning, inspecting and electrically testing the system, you can optimize the performance, service life and safety of your solar system.

Monitoring the performance of your glass-glass solar panels is important to ensure the system is operating optimally and you are getting the maximum yield.

There are different ways to monitor the performance of your solar system:

1. Monitoring system:

• Installing a monitoring system is the most accurate way to monitor the performance of your solar system.
• Monitoring systems can measure the performance of each individual module in real time and provide you with data such as: E.g.:
  • Electricity generation
  • Module temperature
  • Environmental conditions
• With this data you can detect malfunctions and optimize the performance of your system.

2. Data logger:

• A data logger is a simple and cost-effective way to monitor the performance of your solar system.
• Data loggers store electricity generation data over a specific period of time.
• You can then evaluate this data on a computer.

3. Online portals:

• Many solar panel manufacturers offer online portals where you can monitor the performance of your system.
• In order to use these portals, you must connect your solar system to the internet.

4. Smartphone apps:

• There are also smartphone apps that you can use to monitor the performance of your solar system.
• These apps can show you data about power generation, module temperature and environmental conditions.

Regardless of which method you choose, you should keep the following points in mind:

• Data interval: Choose a sufficiently short data interval to obtain detailed information about the performance of your system.
• Alarm notification: Activate an alarm notification to be notified if there is a problem with your system.
• Evaluation: Evaluate the data regularly to optimize the performance of your system.

Additional tips to improve performance:

• Keep your modules clean: Dirty modules can reduce the performance of your system. Therefore, clean your modules regularly with a soft cloth and water.
• Avoid shading: Shaded modules can reduce the performance of your system. Therefore, make sure that your modules are not shaded by trees or buildings.
• Optimize the tilt angle: The tilt angle of your modules can influence the performance of your system. Optimize the tilt angle of your modules to suit your location and your needs.

Conclusion:

Monitoring the performance of your glass-glass solar panels is important to ensure optimal performance and maximum yield from your system. There are various ways to monitor the performance of your system. Choose the method that best suits your needs and budget.

Here are some resources where you can learn more about glass-glass solar panels:

Associations and organizations:

• Federal Association of the Solar Industry (BSW Solar): https://www.solarwirtschaft.de/
• European Photovoltaic Industry Association (EPIA): https://www.europeansources.info/record/website-european-photovoltaic-industry-association-epia/

Further sources of information:

• Funding programs: Find out about funding programs for the installation of glass-glass solar modules in your region.
• Expert advice: Get advice from a qualified solar installer to find the optimal solution for your needs.

Conclusion:

There are many different sources of information where you can learn more about glass-glass solar panels. Use these resources to become fully informed and make the best decision for your investment.

Additional tips:

• Read Reviews: Read reviews from other homeowners who have installed glass-on-glass solar panels.
• Compare offers: Get offers from different specialist companies before deciding on a provider.
• Attend trade fairs and events: Attend trade fairs and events relating to photovoltaics to obtain information from experts and get to know new products.

Yes, there are government subsidies for glass-glass solar modules in Germany.

The amount of funding depends on various factors, such as: E.g.:

• Federal state: Each federal state has its own funding programs.
• System performance: Funding is generally granted per kilowatt peak (kWp) of installed capacity.
• Type of system: Rooftop systems generally receive higher subsidies than ground-mounted systems.
• Own consumption: Systems with their own consumption are generally subsidized more than systems without their own consumption.

The most important funding programs for glass-glass solar modules in Germany are:

• Federal funding for efficient buildings (BEG): This program offers declining funding for the new installation of photovoltaic systems. The amount of funding varies depending on the federal state and the performance of the system. https://www.zolar.de/blog/beg-foerderung
• KfW funding: The KfW banking group offers loans and grants for the new installation of photovoltaic systems. The funding conditions are favorable and there is no repayment requirement for the first five years. https://www.kfw.de/inlandsfoerderung/Privatpersonalen/Bestandsimmobilie/Energiefrisch-Sanieren/Photovoltaik/
• Federal state funding programs: The federal states also offer their own funding programs for photovoltaic systems. Information about the federal states' funding programs can be found on the websites of the respective energy ministries.

Additional funding opportunities:

• Regional funding programs: Some municipalities offer additional funding programs for photovoltaic systems.
• Funding for battery storage: If you install battery storage with your photovoltaic system, you can receive additional funding in some federal states.
• Tax relief: You can deduct the costs of installing a photovoltaic system on your tax return as a household-related service.

Recommendation:

It is advisable to find out about the funding options available before installing a glass-glass solar system.

Conclusion:

Yes, there are various government subsidies for glass-glass solar modules in Germany. The amount of funding varies depending on the federal state, the performance of the system and the type of system. Before installing your system, find out about the funding options available in order to receive the best possible funding.