If it looks like these panels were not purchased all at the same time it’s because they weren’t. I bought them as I could afford them. The bottom four were purchased first. When I wanted more I was told that Brazil was buying all they could make…just wait a few months. I didn’t want to wait but found some compatible ones built by Solar World right here in the US.
I wanted to be able to produce my own electricity for “just in case” scenarios. Since we get all our water from a well, if the power grid goes out, we can’t get water. While the power doesn’t go out very often, when it does, we are without both water and electricity for several days. I wanted to be able to power those ‘critical load’ items like the well pump, a few lights, the refrigerator and freezer. Plus I wanted to prove that solar power can be used even in cloudy climates in states that are “north.” I live on the Oregon Coast. If it works here, it can work in 75% of the US.
In fact, this system works so well that in the summer time, I have so much extra power I can run my printing presses with it.
During the rainy season it’s a different story. Our rainy season is roughly mid October to late May, so it was a big surprise when we had an unexpected sunny day a couple days ago. We had had rainy weather for about a week and my batteries were down. The meter said I was a MINUS 109 amp hours. I was going to have to do some serious charging.