Solar panel evaluations -the finest solar panels
This article highlights the best solar panels on the markets based on key metrics. Efficiency, guarantees, performance and price from everyone.
Efficiency can be described as how well a solar panel converts sunshine into electricity. The performance, on the other hand, is how well the solar panel can handle conditions that are not so ideal. The price indicates how much the panel costs, and the guarantee is the assurance that the manufacturer gives to the buyer, who promises to repair the panel in the event that it fails within a certain time.
1. SunPower solar modules
SunPower is one of the most sustainable and innovative energy companies in the world, providing solar services and solutions to its diverse customers including schools, residential customers, governments and corporations. It started in the 1980s and was named SunPower in 1988 and is one of the world’s leading solar companies. SunPower studies show that only one in 37,000 solar modules fails, indicating that their modules have a very low failure rate and are therefore reliable.
Efficiency: SunPower solar modules are some of the most efficient solar modules on the market and top the list for module efficiency. They have an efficiency of 16.5% to 22.8%, while most panels on the market are between 14% and 18% efficiency.
Performance: This metric uses the temperature coefficient to indicate the performance of the solar panel. Like any other electronic device, solar panels work best in cool conditions. For every degree above 25 degrees Celsius, the power of the panel power generation is reduced by -0.4% for most panels. The power generation of SunPower modules is significantly less reduced compared to other solar modules, as the output drops by -0.29% to -0.37% for every degree above 25 degrees Celsius. Penumbra can also degrade performance, and on some models, a little thing like bird droppings can slow performance. SunPower has technology that can reduce this impact.
Warranty: SunPower offers a 25-year warranty, one of the best that comes with solar panels. Unlike most brands who offer a performance guarantee that their panels will perform at 80% and 83% of their original capacity, SunPower states that their products will perform at 92% of their original capacity after 25 years.
Price: SunPower panels are the best on the market, and their product prices are actually not as high as you would think. They cost between USD 2.83 / watt and USD 3.83 / watt
2. LG Solar Panels
These solar panels are one of the panels at the top of the food chain. LG is a company that has been popular in manufacturing consumer electronics, home appliances, and mobile communication devices over the years. With their many years of experience and the use of their brand performance, they developed solar modules that offer high efficiency and high power output with long-term reliability. LG has two main panel areas: Neon 2 panels and Neon R panels.
Efficiency: The efficiency of these panels varies depending on the model purchased, with the lowest efficiency of 18.4% and a high efficiency of 21.7% for LG’s premium solar products. In general, this is a high efficiency rate when we compare it to other solar panels on the market.
Performance: The performance of a panel is measured using the temperature coefficient. This is how the solar panel works on hot summer days. LG solar products have a temperature coefficient between -0.4% and 0.30% per degree Celsius, which is above 25 degrees.
Warranty: LG offers a 25-year warranty so you can get a replacement in the event the product malfunctions due to a manufacturing defect. This is one of the longest guarantees on the market. They also point out that they have a dedicated dealer network that will arrange for free labor to replace panels under warranty.
Price: Typically, LG systems cost between $ 2.64 and $ 3.30 per watt. Their products are popular in the market for their good praise, especially the black Mono X plus and Neon 2 series.
3. REC Solar Review
The REC Group was founded in Norway in 1996 and has been offering high-performance and sustainable solar products for 20 years. They have registered over 30 million solar panels manufactured, which means around 12 million people are using clean energy.
Efficiency: Product efficiency is specific to the product you have purchased but averages between 15.2% and 19.8%. Of all five series, the REC n PEAK has the highest efficiency with 19.8%.
Performance: Each solar panel has its own temperature coefficient that directly affects the performance. As a rule, an increase in the temperature of the solar module leads to a reduction in the power output. REC solar modules have a temperature coefficient of -0.31% to -0.33% per degree Celsius.
Guarantee: Depending on the series, REC grants a guarantee of 20 years, 12 years and 10 years. REC grants a linear guarantee of 25 years on all products.
Price: The price of REC solar products is between USD 2.87 and USD 3.05 per watt.
4th Q-cell solar panels
Due to its high performance and high quality solar products as well as the good prices, Q-cells is one of the world’s best-known manufacturers of photovoltaics. All models begin with the letter Q, e.g. BQPEAK, Q.POWER and Q.MAXX etc.
Efficiency: The efficiency of these panels is between 17.1% and 19.6%, which can generally be described as average. However, each product has its own specific efficiency. Products with an efficiency of 18% and more are considered products with a high ability to convert sunshine into useful energy.
Power: The power generation of a solar module is ideally reduced for every degree increment above 25 degrees Celsius. This means that the panels will work the least on very hot summer days. The temperature coefficient of the Q cells ranges from -0.40 to -0.35.
Guarantee: In the past, Q cells gave all solar modules a 12-year guarantee against any defects. Now they offer a 25-year guarantee on their product.
Price: Q-Cell products typically cost between USD 2.54 and USD 3.25 per watt. They may not have the highest efficiency on the market, but their friendly cost has made them popular for being great value for money.
5. Panasonic solar panels
Panasonic has been popular in home appliances and electronics since 1975. The company began manufacturing amorphous solar modules until it switched to its HIT basic modules in 1997.
Efficiency: The Panasonic solar modules have an average efficiency between 19.1% and 20.3%. The Panasonic, which is used for Telsa’s solar roof and is to be added to the HIT panel range, has achieved a solar panel efficiency of up to 20%.
Performance: Panasonic panels have the lowest temperature coefficient of -0.26%. Their HIT technology has given these panels such high performance, as has their ultra-thin and monocrystalline amorphous silicon layers. Their panels and surfaces are also in the shape of pyramids, which also helps reduce reflection and direct more sun rays into the solar cells, resulting in maximum power output.
Guarantee: Panasonic is one of the panels with the best guarantees. They offer a 25 year guarantee against malfunction of their solar products.
Price: In general, the Panasonic system costs between USD 2.64 and USD 3.34 per watt.
For more information on solar panels, visit reneenergy.com