Obviously, not all solar panels are the same. Also, the solar panels that power your neighbor's house may not meet your needs. Keep the following criteria in mind when deciding which one suits your needs.
Efficiency of solar panels
The efficiency of the solar module is expressed in percentage. The current industry average is around 18%. High-efficiency solar panels can achieve efficiencies greater than 22%, while cheaper products achieve efficiencies of around 16%. But that's only part of the equation.
The long-term efficiency rating of a solar panel measures the extent to which a panel will degrade over time. Inexpensive solar panels often fail faster and more frequently than higher quality but more expensive panels.
Another consideration, especially for those who live in hot climates, is the temperature coefficient of the panel. The rating measures the loss of energy efficiency with increasing temperature and is expressed as a negative percentage. A lower temperature coefficient rating represents a solar panel that performs better in hot climates than a panel with a higher temperature coefficient.
total system cost
A home solar system costs around $16,000 on average. However, depending on your needs, the cost can range from $ 3,500 to $35,000 . In general, the higher the price of solar panels, the better the quality. However, your situation may not call for the highest quality panel. Compare the efficiency and durability ratings to the total cost of the system and how long you plan to have the system.
Warranty for panels and accessories
The standard warranty for solar modules is 25 years. However, system components such as batteries, inverters, and other critical parts are often covered by warranties that vary significantly by product and manufacturer. Take a look at these warranties, as well as the 10-year and 25-year panel output warranties, to ensure the panels you choose meet your expectations.
installation company
Just as solar panel companies differ from each other, installation companies also differ. When choosing solar panels to suit your needs, make sure that the installation company you choose can supply the panels and components for the entire system.
