Questions You Should Know about full black solar panels
Sep. 02, 2024
Questions about Solar Panels
Can I offer this mode of thinking? "Solar panels" can be just about anything. People think of "solar energy" as those black roof panels that make electricity, but when you consider most of the energy use in a home for several months will be for heating, it's amazing how many still don't think of "solar heating" as something that's usable. My own home is solar heated for much of the year - right now it is, for example, because the sun is out and it's closed up. What I want to do is add a collector and closet on one side so I can store heat to be released at night over the winter. That's active solar but doesn't entail electricity. Look at the stuff nick pine is doing with solar closets. PV cells can take decades to pay off, a solar closet can pay itself off in two.
http://www.ece.villanova.edu/~nick/solar/solar.html
https://sites.google.com/a/southsidecomfort.com/natural-comfort-by-design/solar-closet-by
Cosmetic imperfections can lead to inefficiencies in PV cells. So can heat, which is trapped by glass and especially by glass that is not UV rated. So if you get glass that is not UV transparent then it can help heat the cells through radiation AND trap the heat. I don't know that cheap solar panels are going to be made with quality glass, or with utmost efficiency in mind.
Also, you might think about concentrated solar. Regular PV panels don't do particularly well with efficiency. With concentrated solar you can get over 30% efficiency.
This is why many people hate China...Can I offer this mode of thinking? "Solar panels" can be just about anything. People think of "solar energy" as those black roof panels that make electricity, but when you consider most of the energy use in a home for several months will be for heating, it's amazing how many still don't think of "solar heating" as something that's usable. My own home is solar heated for much of the year - right now it is, for example, because the sun is out and it's closed up. What I want to do is add a collector and closet on one side so I can store heat to be released at night over the winter. That's active solar but doesn't entail electricity. Look at the stuff nick pine is doing with solar closets. PV cells can take decades to pay off, a solar closet can pay itself off in two.Cosmetic imperfections can lead to inefficiencies in PV cells. So can heat, which is trapped by glass and especially by glass that is not UV rated. So if you get glass that is not UV transparent then it can help heat the cells through radiation AND trap the heat. I don't know that cheap solar panels are going to be made with quality glass, or with utmost efficiency in mind.Also, you might think about concentrated solar. Regular PV panels don't do particularly well with efficiency. With concentrated solar you can get over 30% efficiency.
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