Hi all,
I'm looking at doing a DIY solar panel install on my roof. My roof is a ~ 4:12 pitch with asphalt shingles.
I've come across Bi-Facial panels that are on sale - cheaper than similar panels of the same advertised wattage.
Is it apples-to-apples to compare a Bi-Facial panel , for example, rated at 400w to a standard panel at 400w once they are installed parallel to a roof?
Are bi-facial panels rated by adding each side? Like a Bi-Facial 400w panel only having 200w on each side thus leaving me with a 200w panel once I install it parallel to a roof.
Thanks for any help!
I'm looking at doing a DIY solar panel install on my roof. My roof is a ~ 4:12 pitch with asphalt shingles.
I've come across Bi-Facial panels that are on sale - cheaper than similar panels of the same advertised wattage.
Is it apples-to-apples to compare a Bi-Facial panel , for example, rated at 400w to a standard panel at 400w once they are installed parallel to a roof?
Are bi-facial panels rated by adding each side? Like a Bi-Facial 400w panel only having 200w on each side thus leaving me with a 200w panel once I install it parallel to a roof.
Thanks for any help!