Obviously, not all solar panels are created equal. Also, the solar panels powering your neighbor's house may not be the best solution for your needs. Consider the following criteria to decide which best suits your needs.
efficiency of solar collectors
The efficiency of the solar panel is given in percent. The current industry average is around 18%. High-performance solar panels can achieve efficiencies in excess of 22%, while economy products have efficiencies of 16%. But that's only part of the equation.
Long term efficiencies of solar panels measure the degree to which the panel degrades over time. Inexpensive solar panels fail faster and more frequently than high-quality but more expensive panels.
Another consideration, especially for those living in hot climates, is the panel's temperature rating. The rating measures the efficiency of energy loss with increasing temperature and is expressed as a negative percentage. A low temperature rating describes a solar panel that performs better in hotter climates than a panel with a higher rating.
total system cost
The average cost of a solar home system is $16,000 . However, depending on your needs, the cost can range from $ 3,500 to $ 35,000 . In general, the higher the cost of solar panels, the higher the quality. However, your situation may not receive high-quality panels. Compare the performance and durability estimates to the total cost of the system and how long you plan to own the system.
Warranties on Panels and Components
A typical solar panel warranty is 25 years. However, system components such as batteries, inverters and other critical components often come with warranties that vary widely by product and manufacturer. Check out these 10 and 25 year manufacturer warranties and panel warranties to make sure the one you choose will live up to your expectations.
assembly company
Just as solar panel manufacturers differ, so do installation companies. When choosing the right solar panels for your needs, make sure the installation company you choose can supply the panels and components for the entire system.
