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How to choose the best solar panels for a solar power system in Johannesburg

March 13, 2024

 We chatted with a few of our experts and discussed some key points in choosing the best solar panels for your needs in Johannesburg.

Various types of solar panels are available in Johannesburg, but selecting the right ones for your specific needs can be tricky and timely. Researching and consulting with professionals makes it that much easier.

What are the most critical factors when selecting solar panels for a solar power system in Johannesburg?

 Here are a few factors to consider when choosing solar panels for your solar power system in Johannesburg:

 The type of solar panels: Research which is most suitable for your area. Different solar panels perform better under different weather or climate conditions. For example, monocrystalline solar panels are most suitable for urban areas in Johannesburg due to their high-performance levels in low-light conditions.

Temperature coefficient: Given Johannesburg's warm temperatures, it is recommended that you assess the temperature coefficient of different solar panels and select those with low coefficients, as they are more resistant to high temperatures.

Quality and durability: Many solar panel manufacturers are known for producing high-quality solar panels. When selecting solar panels for your solar power system, search for panels with robust construction and warranties that ensure long-term reliability. Considering Johannesburg's harsh weather conditions, ensuring your solar panels are reliable is essential.

Certifications and standards: Research different manufacturers and ensure their solar panels are certified by relevant organisations or industries, such as the International Organisation for Standardisation (ISO) or the International Electrotechnical Commission (IEC). These certifications ensure that solar panels align with safety and quality standards.

What type of solar panels are best suited for Johannesburg's climate and weather conditions?

Anti-PID (Potential-Induced Degradation) Solar Panels are designed to mitigate Potential Degradation (PID) issues, making this type of solar panel suitable for Johannesburg's high temperatures. Additionally, specific solar panels include weatherproof coatings that protect them from moisture, dust, and UV radiation, increasing their reliability and durability.

 Monocrystalline solar panels are a viable option for the climate in Johannesburg due to their outstanding ability to perform optimally in high temperatures without experiencing decreases in their efficiency and performance.

 Lastly, select solar panels with robust construction that can withstand Johannesburg's sometimes harsh weather conditions, such as heavy rainfall, hail, and wind, and research whether these solar panels are made with high-quality materials suitable for Johannesburg's weather and climate.

 How do I determine the quality and efficiency of solar panels available in the market?

Here are a few key factors to consider when determining the quality and efficiency of available solar panels:

 Price vs performance: Although solar panels can be expensive, it is important to prioritise quality over price, as this will benefit you financially in the long run. There will be a reduced risk of defects and poor system performance.

Third-party testing: Select solar panels certified and tested through the National Renewable Energy Laboratory (NREL) or International Electrotechnical Commission (IEC).

 Durability: Search for certifications that prove that the solar panels have undergone testing for durability and performance under different weather conditions, such as IEC 61215 and IEC 61730.

Manufacturer reputation: Research the qualifications and certifications of different manufacturers and select one with a strong track record and several years of experience in the industry.

 What is the difference between monocrystalline, polycrystalline, and thin-film solar panels, and which type is most suitable for my needs in Johannesburg?

 The main difference between these three types of solar panels is the manufacturing process and performance characteristics. Here are a few differences to consider when selecting solar panels:

 Monocrystalline solar panels

These solar panels are made from single-silicone crystals. They are usually more efficient than other solar panel types due to their excellent performance in high temperatures and low-light conditions, making them the perfect option for Johannesburg's climate. This type of solar panel is suitable for residential and commercial installations. Although they are more costly than other solar panel types, you can be assured they are reliable and high-quality panels.

 Polycrystalline solar panels

These solar panels are made from multiple silicone crystals that have been melted together. Although this type of solar panel is less costly, it is possible that it will experience efficiency losses under high temperatures. However, it is suitable for moderate temperatures and is generally used for larger installations with limited space.

 Thin-film solar panels

These solar panels are made from layers of photovoltaic material and have lower efficiency levels compared to the above-mentioned solar panel types. However, they perform well in conditions with limited sunlight, offer flexibility and lightweight design, and are a viable cost-sensitive option.

Monocrystalline solar panels are ideal for Johannesburg's weather and climate due to their heat resistance and high-efficiency levels under different conditions.

 What warranties and guarantees should I expect from Johannesburg solar installers?

 When investing in solar panels in Johannesburg, it is essential to understand the different warranties and guarantees offered by manufacturers. Here are a few warranties and guarantees to expect:

Installation warranty: This warranty is offered for 1 to 5 years and ensures that the solar panels have been installed correctly and align with industry standards.

 Performance warranty: This warranty guarantees that the installed solar panels will nurture a certain level of efficiency and performance (80-90%) over time, usually 25 years.

 Product Warranty: Manufacturers will provide this warranty, guaranteeing that any product and material defects are covered. This warranty usually lasts 10 to 25 years but differs based on the quality of different solar panels.

How do I select a reputable solar panel brand and installer in Johannesburg?

 Start by researching different Johannesburg solar installers and ensuring they have all relevant qualifications and certifications. View their websites and read customer reviews to gain insight into previous customer experiences and company reputations.

Check how long these companies have been in this solar power industry and research their track records, past installations, and experience. You can also request quotes from different manufacturers and compare prices to ensure the company is legitimate and fair. Research the solar panels these manufacturers provide to ensure they offer reliable and high-quality products.

Lastly, ensure that the chosen solar power installer in Johannesburg is reputable and has an excellent track record and reviews, regarding solar panel installations in Johannesburg.

Thank You, Solar Power Experts

Johannesburg's sunny weather makes for the perfect conditions for solar power. Among all the benefits of solar energy, the most important one is that it creates independence from grid electricity and a sustainable and clean future for Johannesburg. By conducting thorough research on different solar panels and brands, you, too, start your journey towards independence and reliability. Contact us today to learn more about solar power systems.

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