AXITEC, LLC

Here are 6 reasons why Bifacial panels are better suited for Florida homeowners. 1. Increased Efficiency. As bifacial modules can produce power from both sides of the panel, energy generation increases overall. Some manufacturers claim that bifacial solar panels can generate up to 30% more energy than conventional monofacial solar panels. This higher efficiency translates into less space per watt, so homeowners can install fewer panels to meet their needs. 2. More Durable. Bifacial panels are frameless and covered on both sides by tempered glass, which makes them often more durable. The tempered glass is weather-resistant and UV-resistant and can withstand high temperatures and strong winds. Because of their durability, bifacial solar panels are expected to have longer lifespans. 3. Aesthetically Pleasing. Bifacial modules come in many designs, including frameless. Many people find the complete glass frame more aesthetically pleasing than monofacial solar panels. 4. Works Well in Diffuse Light. The extra surface area also means that bifacial panels perform better in diffuse light. Making the long-term costs lower than monofacial panels. 5. Reduced PID. In a frameless bifacial panel, the solar cells are less likely to suffer from potential-induced degradation (PID). This is where electrical currents stray from their intended path and, as a result, corrode the solar panels. Furthermore, bifacial panels without a metal frame don't require grounding, as there are no metal contacts on the exterior. 6. Longer Warranties. Bifacial solar panels often come with a more extended warranty of up to 25 years Let's compare a Bifacial panel to 4 of the most often-used monofacial solar panels. For my comparisons, I used: 1. Axitec Bi facial- (AXIblackbipremium XXL HC) - 400-Watt Bifacial Solar Panel—German-made. 2. REC 405-Watt Alpha Pure– Singapore-made panel. 3. Silfab 400-Watt – Canadian-made panel. 4. Qcell 400-Watt – South Korean-made panel. 5. Tesla 425-Watt- It's the Q-Cell Solar panel. – South Korean-made panel. The panels I chose to compare are the most often offered based on price and availability in my home state of Florida. The STC rating considers the efficiency of the panel's cells and heat degradation under perfect weather conditions in a warehouse. The STC is unimportant to Florida homeowners as we need actual weather testing results or NOCT (Nominal Operating Cell Temperature). This information gives you real-world results on your rooftop. 1. Axitec Bifacial 400-Watt = 372-Watts-This is the usable energy from the panel in real-world conditions. 2. REC Alpha Pure 405-Watt = 309-Watts This is the usable energy from the panel in real-world conditions. 3. Silfab 400-Watt =298-Watts - This is the usable energy from the panel in real-world conditions. 4. Qcell 400-Watt =300.10-Watts - This is the usable energy from the panel in real-world conditions. 5. Tesla 425-Watt- 325.20- watts - This is the usable energy from the panel in real-world conditions. As you can see, even though they are all rated at or near 400 watts, they are very different in real-world weather conditions, and some of these panels lose a considerable amount of energy vs. the STC rating they were given at the factory. We need to look at the factory warranties next. The warranty is divided into three parts. 1. Product Warranty 2. Power Warranty (This is tricky because they are using the STC rating, so it's not accurate at all) (I used real-world testing and got the honest answer) 3. Labor Warranty Product warranty. Also known as a material warranty, a solar panel manufacturer's product warranty covers the integrity of the equipment itself. If your solar panels have a defect or mechanical issue or experience unreasonable wear and tear, that should be covered by your product warranty. If your solar panel has a defect, it's typically apparent "out-of-the-box." In other words, you or your installer should be able to tell that something is amiss and fix the problem immediately–often before the panel even makes it to your roof. Regardless, it's good to consider products with longer warranties for the peace of mind they provide. 1. Axitec Bifacial 400-Watt = 25-year material and workmanship 2. REC Alpha Pure 405 watts = 20-year material and workmanship 3. Silfab 400-Watt = 12-year material and workmanship 4. Qcell 400-Watt = 25-year material and workmanship 5. Tesla 425-Watt = 25-year material and workmanship Power warranty. Like every other type of electronic, the performance of your solar panels will degrade over time: fortunately, solar panel manufacturers offer a power (or performance) warranty for their products. Power warranties help protect you against atypical degradation of your solar panels, ensuring that the output of your panels won't fall below a certain level after a set period. Different types of solar panel technologies degrade at different rates. Generally speaking, the highest quality solar panels offer extended power warranties (25 years or more) that guarantee at least 80 percent of the original output by the end of the warranty term. 1. Axitec Bifacial 400-Watt = 25-year linear performance—85% of 372 watts after 25 years = 316.2 watts. This panel will still generate 316 watts after 25 years. This panel delivers more solar watts after 25 years of service than the competitors did when they were first installed brand new. 2. REC Alpha Pure 405 watts = 25-year performance guarantee—90% of 309 Watts after 25 years = 262.65 Watts. This panel will still be generating after 25 years. 3. Silfab 400-Watt = 25-year performance guarantee - 90% of 298 Watts after 25 years = 278.20 Watts. This panel will still be generating after 25 years. 4. Qcell 400-Watt = 25-year linear performance - 90% of 301 Watts after 25 years = 270.90 Watts. This panel will still be generating after 25 years. 5. Tesla-425-Watt = 25-year linear performance - 90% of 325 Watts after 25 years = 292.50 Watts. This panel will still be generating after 25 years. Labor warranty. Solar installers are often the sole party responsible for providing a solar installation. However, some manufacturers offer additional protection by adding a labor warranty for a limited number of certified installers in their network. 1. Axitec 400-Watt = 250.00 labor per panel replacement. 2. REC 405-Watt = No labor per panel replacement. The installer charges the customer. 3. Silfab 400-Watt = No labor per panel replacement. The installer charges the customer. 4. Qcell 400-Watt = No labor per panel replacement. The installer charges the customer. 5. Tesla 425-watt = No labor per panel replacement. The installer charges the customer. The other factors you may consider when choosing the correct solar panels for your FLORIDA home. 1. Less is more—The more (NOCT) production you get from the solar panels, the fewer solar panels you need. This means you need less rail to mount them and fewer microinverters. Not to mention that fewer panels and micros equal fewer fault points or better odds of not having a problem. 2. Fewer panels means faster ROI (Return on Investment) and less total cost for the system. 3. Bifacial solar cells may produce more output energy than mono-facial solar cells because both sides of the cell, front and rear, can absorb solar radiation. Extra energy production can range from 10% to 30%, depending on the climate. If you understand this information, you can install the right system in your Floria home. Don't take my or anyone's word without verification—here is where I got the information, and you can verify it all! This is where all my information came from NOCT and warranty information were found online in spec sheets. 405 REC Panels https://sunwatts.com/405-watt-rec-mono-all-black-solar-panel/ 400 Silfab Panels https://sunwatts.com/400-watt-silfab-mono-all-black-solar-panel/ 400 Q-Cell Panels https://sunwatts.com/400-watt-q-cells-mono-all-black-solar-panel-1/ 425 Tesla Panels https://sunwatts.com/400-watt-q-cells-mono-all-black-solar-panel-1/ Axitec 400-Watt Bifacial Axitec spec sheet https://www.axitecsolar.com/sites/default/files/solar_modules_pdf/DB_108zlg_blackbiprem_XXL%20HC_CSA.pdf For Axitec, I had to call the manufacturer to get the information. It was not online anywhere. Here is what he said: Thank you for our recent call. The 400W module's NOCT (Nominal Operating Cell Temperature) is 372 Watts, while its STC (Standard Test Conditions) rating is 400 Watts. If you have any more questions, you can use the following formula to calculate these values for any panel, given the Temperature Coefficients and nominal operating temperature: Power rating (STC): 400W NOCT temperature: 45°C +/-2K To calculate the power output under NOCT conditions, we can use the power temperature coefficient for output power (Pmpp), which is -0.35%/K. 1. Determine the temperature difference from STC to NOCT: NOCT temperature = 45°C +/-2K Temperature difference = NOCT temperature - STC temperature = 45°C - 25°C = 20°C 2. Calculate the power adjustment based on the temperature coefficient: Power adjustment = Temperature difference * Power temperature coefficient Power adjustment = 20°C * (-0.35%/K) Power adjustment = -7% 3. Calculate the power output under NOCT conditions: Power output under NOCT = Power rating (STC) + (Power rating (STC) * Power adjustment) Power output under NOCT = 400W + (400W * (-7%)) Power output under NOCT ≈ 372W Thank you for your attention. Best regards, Tim Tuttle National Sales Manager AXITEC, LLC 510 Pedricktown Road, Suite A Logan Township, New Jersey 08085 USA

The best solar panel for Florida homeowners? Florida homeowners have a lot of sun, and with the sun comes heat. Heat is an issue in the performance of solar panels. The STC rating is the first thing you will see when comparing solar panels. The STC rating (Standard Test Conditions) is the panel's wattage. For my comparisons, I used: 1. Axitec 400-Watt Bifacial solar panel- German-made panel. 2. REC 405-Watt – Singapore-made panel. 3. Silfab 400-Watt – Canadian-made panel. 4. Qcell 400-Watt – South Korean-made panel. 5. Tesla 425-Watt- It's the Q-Cell Solar panel. The panels I chose to compare are the most often offered based on price and availability in my home state of Florida. The STC rating considers the efficiency of the panel's cells and heat degradation under perfect weather conditions. The STC is unimportant to Florida homeowners as we need actual weather testing results or NOCT (Nominal Operating Cell Temperature). This is the information that gives you real-world results on your rooftop. 1. Axitec Bifacial 400-Watt = 372-Watts- This is the usable energy from the panel in real-world conditions. 2. REC 405-Watt = 309-Watts This is the usable energy from the panel in real-world conditions. 3. Silfab 400-Watt =298-Watts - This is the usable energy from the panel in real-world conditions. 4. Qcell 400-Watt =300.10-Watts - This is the usable energy from the panel in real-world conditions. 5. Tesla 425-Watt- 325.20- watts - This is the usable energy from the panel in real-world conditions. As you can see, even though they are all rated at or near 400 watts, they are very different in real-world weather conditions, and some of these panels lose a considerable amount of energy vs. the STC rating they were given at the factory. We need to look at the factory warranties next. The warranty is divided into three parts. 1. Product Warranty 2. Power Warranty 3. Labor Warranty Product warranty. Also known as a material warranty, a solar panel manufacturer's product warranty covers the integrity of the equipment itself. If your solar panels have a defect or mechanical issue or experience unreasonable wear and tear, that should be covered by your product warranty. If there's a defect with your solar panel, it's typically apparent "out-of-the-box." In other words, you or your installer should be able to tell that something is amiss and fix the problem immediately–often before the panel even makes it to your roof. Regardless, it's good to consider products with longer warranties for the peace of mind it provides. 1. Axitec 400-Watt = 25-year material and workmanship 2. REC 405-Watt = 20-year material and workmanship 3. Silfab 400-Watt = 12-year material and workmanship 4. Qcell 400-Watt = 25-year material and workmanship 5. Tesla 425-Watt = 25-year material and workmanship Power warranty. Like every other type of electronic, the performance of your solar panels will degrade over time: fortunately, solar panel manufacturers offer a power (or performance) warranty for their products. Power warranties help protect you against atypical degradation of your solar panels, ensuring that the output of your panels won't fall below a certain level after a set period. Different types of solar panel technologies degrade at different rates. Generally speaking, the highest quality solar panels offer long power warranties (25 years or more) that guarantee at least 80 percent of the original output by the end of the warranty term. 1. Axitec 400-Watt = 25-year linear performance 2. REC 405-Watt = 30-year performance guarantee 3. Silfab 400-Watt = 30-year performance guarantee 4. Qcell 400-Watt = 25-year linear performance 5. Tesla-425-Watt = 25-year linear performance Labor warranty. More often than not, solar installers are the sole party responsible for providing a solar installation. However, some manufacturers offer additional protection by tacking on their own labor warranty for a limited number of certified installers in their network. 1. Axitec 400-Watt = 250.00 labor per panel replacement. 2. REC 405-Watt = No labor per panel replacement. The installer charges the customer. 3. Silfab 400-Watt = No labor per panel replacement. The installer charges the customer. 4. Qcell 400-Watt = No labor per panel replacement. The installer charges the customer. 5. Tesla 425-watt = No labor per panel replacement. The installer charges the customer. The other factors you may consider when choosing the correct solar panels for your FLORIDA home. 1. Less is more- The more (NOCT) production you get from the solar panels, the fewer solar panels you need. Meaning you need less rail to mount them and fewer microinverters. Not to mention that fewer panels and fewer micros equals fewer fault points or better odds of not having a problem, to begin with. 2. Fewer panels means faster ROI (Return on Investment) and less total cost for the system. 3. Bifacial solar cells may produce more output energy than mono-facial solar cells because both sides of the cell, front and rear, can absorb solar radiation. Extra energy production can range from 10-30%, depending on the climate. I did not assume any extra radiation for this comparison. 4. Tesla Solar, the installation practices are standard throughout the country, and this is not a great decision for Floria homeowners. Florida homes need the airflow under the panels to cool the panel during the summer. Tesla has a great-looking panel, but the heat reduces the production in Florida. I hope this information is helpful to you and you can install the right system on your FLORIDA home. This is where all my information came from NOCT and warranty information were found online in spec sheets. 405 REC Panels https://sunwatts.com/405-watt-rec-mono-all-black-solar-panel/ 400 Silfab Panels https://sunwatts.com/400-watt-silfab-mono-all-black-solar-panel/ 400 Q-Cell Panels https://sunwatts.com/400-watt-q-cells-mono-all-black-solar-panel-1/ 425 Tesla Panels https://sunwatts.com/400-watt-q-cells-mono-all-black-solar-panel-1/ Axitec 400-Watt Bifacial Axitec spec sheet - 400-watt panel bifacial.pdf For Axitec, I had to call the manufacturer and get the information. It was not online anywhere. Here is what he said: Thank you for our recent call. To summarize, the NOCT (Nominal Operating Cell Temperature) for the 400W module is 372 Watts, while the STC (Standard Test Conditions) rating is 400 Watts. If you have any more questions, you can use the following formula to calculate these values for any panel, given the Temperature Coefficients and nominal operating temperature: Power rating (STC): 400W NOCT temperature: 45°C +/-2K To calculate the power output under NOCT conditions, we can use the power temperature coefficient for output power (Pmpp), which is -0.35%/K. 1. Determine the temperature difference from STC to NOCT: NOCT temperature = 45°C +/-2K Temperature difference = NOCT temperature - STC temperature = 45°C - 25°C = 20°C 2. Calculate the power adjustment based on the temperature coefficient: Power adjustment = Temperature difference * Power temperature coefficient Power adjustment = 20°C * (-0.35%/K) Power adjustment = -7% 3. Calculate the power output under NOCT conditions: Power output under NOCT = Power rating (STC) + (Power rating (STC) * Power adjustment) Power output under NOCT = 400W + (400W * (-7%)) Power output under NOCT ≈ 372W Thank you for your attention. Best regards,

Great product and warranty, love the design!

These panels perform very well and they also look great! Very sleek black on black look. Efficient panel with strong production warranty!

Axitec is amazing and looks great! Best panel on the market!!

We have had good success with these modules. Great production numbers and solid warranty.