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Your Solar Guide: String Inverters

String Inverters

In order to function properly, solar panels must have inverters to convert the direct current electricity that your panels produce into usable alternating current electricity. One type of inverter that can be used in your solar panels is string inverters, which are one of the oldest and most reliable types of converters on the market.

What are string inverters and how do they work?

A string inverter system connects groups of solar panels in your system by “strings”. Each of these strings connects to a single inverter, most often placed on the side of your home or in your garage, where electricity is converted from direct current to alternating current electricity. Since panels are connected in strings to the inverter, if any of the panels are under-producing energy, the panels on that string will only be able to produce as much energy as the affected panel. Most string inverters are capable of handling multiple strings of panels attached to it. The size of the string inverter in kilowatts and the wattage of the panels you use will determine how many panels you can string on one inverter without wasting energy.

When should you use string inverters with a solar panel system?

String inverters can be very successful for many solar panel systems, but they may not be the best choice in some cases. Since string panel systems can only produce as much energy as the lowest-performing panel on the string, string inverters are not the best choice for solar systems that experience a lot of shade. Also, if your solar panel system will be facing different directions, a string inverter system may not be for you. Since panels facing different directions will be producing varying amounts of electricity, having a string inverter could limit the amount of energy your system may be able to produce.

What should you consider when evaluating string inverters?

There are a few things to keep in mind when evaluating string inverters. The first thing to consider is efficiency. Just like the panels themselves, string inverters have varying efficiencies. An inverters efficiency is a measure of how much energy is lost in the form of heat during the conversion for DC to AC electricity. Another thing to consider is the size. Solar inverter sizing depends on several factors such as the size of your system, your geographical location, and other site-specific considerations. Warranties can also be important when looking at string inverters and most of them typically come with a product warranty between five damage to your inverter system. Lastly, price is an important factor to consider. String inverters are not typically the most expensive component of a solar system, but it is still important to consider their prices. and fifteen years. These warranties typically cover problems like manufacturer defects and environmental.

Source: www.energysage.com