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You may have heard LG solar panels described as “high-efficiency” panels. Have you wondered why this is important, or how panel efficiency might affect your solar project?
When consumers evaluate solar panels, they often focus on a measurement called the advertised maximum power (Pmax). This measurement represents a solar panel’s theoretical power production under ideal sunlight and temperature conditions. Think of it as the maximum amount of power a user can expect a solar panel to produce in an ideal solar environment.
In fact, no solar environment is ideal every day. If you’re trying to determine the performance you can expect from a new solar system, regional differences (along with seasonal and weather changes) therefore limit the value of the Pmax measurement.
That’s why it’s important to consider the efficiency of a solar panel. Efficiency is defined as the amount of power produced by the panel per square meter (m2) of sunlight at STC*. A solar panel that produces 200 watts of power per m2 at STC would theoretically be performing at 20% efficiency. Basically, the more efficient a solar panel is the greater potential for more energy production in a given footprint.
When your LG PRO installer designs your solar array, one of the questions you might have is: “How many solar panels will I need?” The answer is determined by a number of factors, including your home’s average electricity usage in a year and how much sun hits your roof. One of the most important factors is the efficiency of the solar panels you choose. The more efficient they are, the more likely a more powerful system may be able to fit on your roof. The other advantage is that fewer high-efficiency solar panels could be needed to provide the electricity you need (this is a big advantage for smaller roofs or roofs that experience some shading).
The efficiency rating of a solar panel varies depending on manufacturers and technologies. LG’s goal is to manufacture high-efficiency panels that will provide you with the most electricity possible. We are constantly innovating new solar technologies to boost both our products’ output and efficiency. Our latest products have efficiency ratings ranging from 19.3% - 20.4% for the NeON® 2 to 21.1% - 21.7% for the NeON® R. Your solar installer can help you determine which model is right for your project.
