Solar modules are available in a wide variety of capacities, qualities, prices and specifications. The perfect solar panels for your home and needs can be very different from the perfect ones for your neighbors. Consider the following criteria when deciding which model best suits your needs.
The cost of solar panels.
The average cost of a solar home system is about $16,000 and ranges from as little as $3,500 to more than $35,000 , including installation and panels with no tax refunds. While quality plays an important role in the cost of solar panels, the features and capabilities of each system component also play an important role. Look for solar panels that offer the best return on investment, including the ability to reduce energy costs, while still fitting your budget.
efficiency of solar panels.
Efficiency is expressed as a percentage and reflects the performance of individual solar modules. The current average efficiency for residential panels is around 18%. High-efficiency solar modules have an efficiency of more than 22%, cheap products - about 16%.
Not all homes require the highest level of efficiency. Your budget, performance requirements, and available space will help you determine an acceptable range of efficiency. When buying one, keep in mind that the efficiency of solar panels decreases over time.
panel capacity
To be profitable, solar panels must produce at least as much energy as they replace. While the efficiency rating reflects how well the panel dissipates energy, the wattage measures performance. Most modern residential solar systems generate between 250 and 400 Wh of energy when generating electricity. In general, high wattage panels are preferred over low wattage panels. However, your needs and budget are factors that will determine the performance of any panel.
temperature coefficient
The panel's rating factor measures the loss of efficiency as the temperature rises and is expressed as a negative percentage. A lower temperature coefficient means that a solar panel will perform better in hot climates than a panel with a higher temperature coefficient. While low ratio panels can be critical in hot climates, they can also provide excellent results in locations with large temperature fluctuations.
Your home's energy needs
Depending on your home's energy use, you may need a solar home system that produces more or less electricity. Make sure your system generates enough electricity during the day and, if desired, has enough energy storage to last through the night. Some solar users choose systems that are large enough to generate enough electricity to meet some of their needs, while others choose systems that allow them to live off the grid or even generate electricity for their local utility to sell.
Check solar panel warranties
A typical product warranty for solar panel brands is 25 years. System components such as batteries, inverters, and other critical parts often have warranties that vary greatly by product and manufacturer. Keep these warranties and the 10- and 25-year panel warranties in mind, especially if you plan to stay in the same home for a long period of time. Follow the manufacturer's performance and warranties.
Availability of installation company
In addition to availability where you live, make sure the installation company you choose offers the panels and system components you need or their equivalents. Check reviews, references and quotes when choosing a company that can meet your solar energy needs. In addition to the manufacturer's warranty, pay attention to the installer's warranty.
available roof space
The size of the roof or garden area to be optimally covered is a key factor that can limit the choice of panels. Small spaces benefit from fewer panels with lower performance and efficiency, while homeowners with larger footprints can benefit from more panels and power options.
Check out the solar panel reviews
Not so long ago, there were many solar panel customers to turn to for expertise. As solar becomes more popular and consumers now have several years to evaluate their systems, things have changed. Online reviews of solar panel brands, models, installers, systems, storage systems and other components are available, so you can be sure you're getting the best value for your investment.
Recommendations for the installation of solar panels
Solar energy systems and solar panels are constantly evolving and improving. When making your purchase decision, ask other experienced owners of the system you're considering what they've learned. Also, be open to recommendations from solar companies for your energy needs. In an ever-changing industry, there is always new information that can be useful.
