bka0721 wrote:
1. Impossible to remove if need of replacing.
2. Heat from panels and heat from surface (metal) combines to heat the panels even more.
3. Heat clips off amps generated with all solar during warmer months but at a higher rate/sooner with these panels and shortening the period of solar harvesting for the day.
4. Shorter Lifespan from glass panels
5. Cupping is created across the cell.
6. Dirt and Debris Collect in the concave of the cupping.
7. Cupping requires additional cleaning and care for flat panels
8. Due to the panel being polymer, they are not resistant to scratching when cleaned.
9. Marring of surface decreases the capabilities of solar collection.
All very valid things I will watch for. One thing to note - unlike most TC's, my trailer roof is curved/rounded slightly, and not flat, so rain does a fair job of keeping them somewhat clean. I did clean them once already, they seem like they have a fairly durable top coat, I didn't notice any scratching when i was done, but I will watch for that.
One thing I will say about these, coupled with the controller I chose-- Low light performance-- IMHO....OMG, I swear, these things put out a charge with a flashlight. This morning I went out, 8am here in Seattle, completely overcast, and I was already getting 3amps of charge.
