“WP” is a common designation for components of a solar power system that are being upgraded or are being considered for an upgrade. The rating for the system is normally next to this marker, as well as a number. As a result of this, many people are unsure of what WP stands for.

“Watts Peak” (abbreviated “WP”) is the maximum wattage a system may produce under ideal operating conditions. There are too many environmental variables to consider for your system to always run at this level of performance. It’s possible that once in a while you’ll experience a day like this, where everything is peaceful, quiet, and sunny.

Keep your enthusiasm in check and don’t rush to install panels with high watt-per-square-foot (WP) ratings. Other sections of your system are engaged in the conversion of this energy and the panels can overwhelm them if their WP rating is not as high as the panels. In this example, let’s imagine you have 5 panels each rated at 50 WP. There are total of 250 watts under ideal circumstances.

Assume you have a converter box with a maximum power output of 200 WP. At maximum capacity, your solar panels will produce 50 watts more power than the converter can handle, causing it to malfunction. Having an electrical fire is the last thing you want or need to happen as a result of this. Math and wise purchasing are necessary to prevent this from happening and keep your property safe.

Make sure you write down the WP rating of your solar panels before you buy them, and then multiply that figure by the quantity of panels you purchase. Purchase other system electrical support equipment only if their WP rating is somewhat higher than your total number of panels you have. Then when you go to buy. This will ensure that other parts of the system aren’t overburdened and have some breathing room to deal with.

For the sake of your components, you want to leave a bit of breathing room for them because older electrical systems can’t handle as much load as they could when they were new. This procedure isn’t required, but it can extend the life of your components by a few years. Even solar panels and the parts that go with them have a shelf life, and they will need to be changed when that time comes.

A decade or so should be enough time to make sure the panels and other equipment are built correctly. To put it another way, you may not have to worry about this issue at all if the panels are manufactured really well.

Your solar power system’s WP marking is a reference to the maximum watts it can produce under ideal conditions. When purchasing your equipment, keep in mind that the support components should have a greater WP rating than all of your panels put together. A failure to do so could result in system overloads and other potentially dangerous consequences.