Solar panels are available in various capacities, qualities, prices and features. The perfect solar panel for your home and your needs can be very different from one that suits your neighbor's needs. Keep the following criteria in mind when deciding which one best suits your needs.
Solar panel cost.
The average solar system for the home costs about $16,000 , ranging from $3,500 to more than $35,000 , including installation and panels and excluding tax deductions. While quality plays a role in the cost of a solar panel, the features and capabilities of each component in the system also play a role. Look for solar panels that offer the best return on investment and have the potential to significantly reduce energy costs without breaking your budget.
solar panel efficiency
Efficiency is expressed as a percentage and reflects the productivity of each solar module. The average efficiency of today's residential panels is around 18%. High performance solar modules have an efficiency of over 22%, low cost products have an efficiency of around 16%.
Not all homes need the highest possible efficiency rating. Based on your budget, power requirements and available space, you can determine an acceptable efficiency range. Keep in mind that solar panels become less efficient over time while shopping.
dashboard performance
To be useful, solar panels must generate at least as much power as they replace. While efficiency ratings reflect a panel's ability to convert energy, watts measure performance in terms of power. Most modern home solar power systems generate between 250 and 400 watt-hours of electricity. In general, panels with higher wattage are preferred over lower wattage panels. However, your needs and budget are factors in choosing the power output per module.
temperature coefficient
Panel ratings measure the loss of efficiency due to increased temperature and are expressed as a negative percentage. A lower temperature coefficient rating means the solar panel will perform better in hot climates than one with a higher coefficient rating. Although low coefficient panels are essential in hot locations, they can also produce noticeable results in locations with rapid temperature changes.
your electricity needs at home
Depending on your family's energy consumption, you may need a home solar system that generates 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 provide electricity to their local utility company.
Check solar panel warranties
The typical product warranty for a brand of solar panels 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 this warranty and the performance guarantees of 10-year and 25-year modules, especially if you intend to live in the same household for a longer period. Oversee performance warranties and manufacturer warranties.
Availability of installation company
Make sure the installation company you choose is not only available where you live, but also has the panels and system components you want, or equivalent. Check reviews, references and quotes when choosing a company that can meet your solar needs. In addition to the manufacturer's warranty, consider the installer's labor warranty.
Roof space available
The space you have on your roof or terrace, facing in the optimal direction, is an important factor that can limit your panel choices. Small spaces benefit from fewer panels with higher wattage and higher efficiency, while homeowners with larger spaces can benefit from more panels and power options.
Take a look at opinions about solar panels
Not so long ago, there were few solar customers to visit with their expertise. As solar has grown in popularity and consumers now have years to evaluate their systems over time, things have 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 return on your investment.
Solar installation recommendations
Solar power systems and solar panel systems are constantly being developed and improved. When making a purchase decision, ask owners of other systems you're considering what they've learned. Also, be open to recommendations from solar power companies regarding your energy needs. In an ever-changing industry, there is always new information that can be useful.
