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When people talk about the efficiency of solar panels, they are referring to their ability to convert sunlight into electricity—a number that has been soaring in recent years as technology advances.
Although the first solar cell was invented in the 1800s, it was not a viable power source because it had an efficiency rating of less than 1%. It was not until 1955 that Hoffmann Electric invested in the first commercially viable solar panel. Although it costs $25, a battery with an efficiency of only 10% means you need to spend $4 million to buy a system that is half the current standard. This alone shows that we have come far.
From the 1980s to the present, the efficiency of solar panels has not only increased from about 15% to more than 20%, but the cost of producing these cells has also dropped significantly to the extent that high-efficiency arrays can be installed. Only a few thousand dollars (after the government tax refund).
It should be noted that just because solar panels have higher efficiency does not necessarily make it the most superior choice on the market. There are many factors that need to be included, such as the manufacturer’s reputation and experience in the industry and the longevity of these solutions. But higher rates mean you will get some unavoidable benefits, including:
This not only means that your installation will be cheaper because fewer panels are required, but it also means that less roof space is required for a complete installation. For those with limited working space, high-efficiency panels are essential.
Installing these systems requires out-of-pocket costs, even if the government STC offers discounts of up to 40%. The more efficient your panel, the less time it takes to save more than the amount spent, so you are in the profit zone.
The following is a list of the most efficient on the market panel.
As of February 2021, the most efficient residential solar panels:
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