Solar modules are available in a wide range of capacities, qualities, prices and features. The perfect solar panel for your home and your needs may be very different from those of 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 system for a home is about $16,000 , ranging from $3,500 to $ 35,000 , including installation and panels, and not requiring a tax refund. While quality plays a role in the cost of solar panels, the characteristics and capabilities of each system component also play a role. Look for solar panels that offer the best return on investment and have the potential to significantly reduce your energy costs while staying on budget.
panel efficiency
The efficiency rating is expressed as a percentage that reflects the productivity of individual solar panels. The current average efficiency for residential panels is around 18%. High-efficiency solar panels are more than 22% efficient, while economy products are about 16% efficient.
Not all homes require the highest possible efficiency rating. Your budget, energy needs and available space will help you determine an acceptable efficiency range. When shopping, keep in mind that the efficiency of solar panels decreases slightly over time.
panel performance
To be useful, solar panels must generate at least as much energy as they replace. The efficiency rating reflects a panel's ability to convert energy and measures its power performance. Most modern residential solar panel systems produce 250 to 400 watts per hour of power output. In general, higher wattage panels are preferable to lower wattage panels. However, your needs and budget will be considered when choosing the output power for the panel.
temperature coefficient
The rating of a panel decreases its efficiency with increasing temperature and is expressed as a negative percentage. A lower temperature coefficient index means that a solar panel will perform better in hot weather than a panel with a higher coefficient index. Although low coefficient panels can be important in hot places, they can also provide noticeable results in places that experience severe temperature fluctuations.
Your home needs electricity
Depending on your household's energy consumption, you may need a home solar system that produces more or less electricity. Make sure your system generates enough electricity during the day and, if desired, stores enough power to last you through the night. Some solar users are choosing systems large enough to generate enough electricity to meet some of their needs, while others are choosing systems that allow them to sell electricity off the grid or even to a local utility.
Check the warranty of the solar panels
The typical product warranty for solar panel brands is 25 years. System components such as batteries, inverters, and other critical parts often come with warranties that vary greatly by product and manufacturer. Consider these warranties and the panel's 10- and 25-year performance warranty, especially if you plan to stay in the same home for a long period of time. Pay attention to performance guarantees and manufacturer warranties.
Availability of an installation company
Make sure the installation company you choose is not only available where you live, but also offers your preferred panel and system components or their equivalents. Check reviews, references and quotes when choosing a company that can meet your solar needs. In addition to the manufacturer's warranty, pay attention to the installer's technical warranty
roof area available
The space you have on your roof or patio in the best orientation is an important factor that can limit your choice of panels. Smaller spaces benefit from fewer panels with higher power and efficiency, while homeowners with more available space can benefit from more panels and energy options.
Check out solar panel reviews
Not long ago, some solar customers returned based on their experiences. With solar becoming increasingly popular and consumers having years to rate their systems over time, all that has changed. Online reviews of solar panel brands, models, installers, systems, storage, and other components are readily available, so you can be sure you're getting the best possible results from your investment.
Recommend a solar system
Solar power systems and solar panel systems are constantly being developed and further improved. When making a purchase decision, ask others who own the system to consider what you've learned. Also, be open to recommendations from solar companies regarding your energy needs. In an ever-changing industry, there is always new information that can be useful.
