Greetings all, first time here.
I'm installing a solar attic fan for exhaust purposes on my roof.
While my panel will be appropriately faced SW (for my location), I wanted to add a second panel for transitions in available light; It would have a more East-by-northeast azimuth to catch the sun before it crests my roof to the back of the house (where panel #1 will be mounted), enabling a greater amount of direct sunlight in a day.
QUESTION:
I need a recommendation to build a switch that evaluates current produced (or in this case, volts) by each panel and chooses that panel to supply the fan. My current fan uses a 20W panel, so I would suspect a like-watted panel for panel #2.
Thoughts?
Thanks in advance.
J
I'm installing a solar attic fan for exhaust purposes on my roof.
While my panel will be appropriately faced SW (for my location), I wanted to add a second panel for transitions in available light; It would have a more East-by-northeast azimuth to catch the sun before it crests my roof to the back of the house (where panel #1 will be mounted), enabling a greater amount of direct sunlight in a day.
QUESTION:
I need a recommendation to build a switch that evaluates current produced (or in this case, volts) by each panel and chooses that panel to supply the fan. My current fan uses a 20W panel, so I would suspect a like-watted panel for panel #2.
Thoughts?
Thanks in advance.
J