How Long the Photovoltaic Panels Last

We know everything about the average life of a car depending on the use we make of it, a little less we know the duration of a Photovoltaic Module. Today we will clarify the ideas easily, also referring to the tests we found online.

Why do many people wonder how a photovoltaic system can work? The answer is simple; you want to know if it's worth facing the initial investment. We immediately clear the doubts, it's worth it. We saw it in the article on the gain we can make with photovoltaics.

At present, with tax deductions, we recover the investment in 3 years. Imagine if it's not worth it. Better than any type of investment that is Bot (they are at 0.5% a year), bonds, shares, and more is not risky. Provided, of course, that you have a home to consume the energy produced, a space to install the system that is exposed to the sun and we receive income to take advantage of the deduction. That said, let's go back to the initial question:

What kind of life do photovoltaic solar modules have?

Let's start with this data: the manufacturers usually give a 10-year guarantee on the malfunctioning of the product (of the module), and 20 years on the 80% of the initial power. So the minimum last 20 years. What happens then? They continue to work. Do you have a calculator from the 80s at home, the ones that had small solar cells for operation? If yes, take it and try to see if it still works. If you don't have it we will tell you; it will work.

The builders keep themselves on the strait, someone can even give a 25-year guarantee on 80% of the initial power, but the panels can continue their course of life. Solar Panels with 60 years of life are still in operation. Without going too far, in the United States, it is easy to find installations from the 1970s that are still functioning.

The modules are guaranteed as said for 25 years; they lose about 0.6% -0.7% of efficiency per year, in 25 years they will have left almost 20% of their yield on the ground. After 25 years, a 10 KW system is now an 8 KW system, and a 3 KW system is 2.4 KW.

This is not always the case. In this test carried out in England on a photovoltaic system put into operation in 1997, after 13 years of operation, in 2010, the technicians measured a loss of just 9%, 0.7% a year. The decay of a photovoltaic module is more related to its "physical structure" which supports it like the metal frame, the bolts, the glass, the cell instead remains almost intact, and we can think of having free energy even for life, with a small annual decay, but the game is always worth the candle. Not counting that installing a photovoltaic system we will be protected from any increase in the bill, energy crisis or price trends related to oil

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