It should be noted there’s a difference between setting max efficiency records and maintaining consistent performance in the real world. As stated above, a highly efficient panel may look good in a lab, but could lack the performance needed to operate consistently in practical applications.
If your chief goal is to maximize electrical output of your system, technology like smart modules and module-level power electronics have to be considered along with panel efficiency. Maximizing this output by making a PV system as efficient as possible also has the potential benefit of revenue from net energy metering.
Unlock output potential with proper planning
Regardless of which solar panel is chosen, detailed planning and resources should go into determining the best installation and placement possible.
A good first step is making sure the sun shines on the panels by avoiding shaded areas and installing panels at the best possible angle.
Cleaning and maintenance
The work isn’t done after a system is installed. Just like maintenance on a car, keeping a solar panel system clean and in good repair is essential to peak performance. Dust buildup over the course of a year can reduce output up to 4.4%, so if your system is in a particularly dry area where rain doesn’t regularly wash your panels naturally, manually cleaning them is a good idea.
Even if you get regular rainfall, all panels should be regularly checked for pollen, bird droppings, leaves, ash, and other pollutants and residue. Wash panels gently with a hose first. If they’re still dirty, softly squeegee with mild soapy water to effect.