jrnymn7 wrote:
I've seen 300w out of two 140w panels, on a mild, mostly cloudy day, so I wouldn't count on clouds to "protect" the controller. One break in cloud cover, and some edge of cloud effect, could possibly overload the controller. You may be best to just run a separate circuit, and parallel the two systems. (Or bite the bullet for a larger controller.) You wouldn't have the hassle of matching panel specs to the old panels, either, if you went with two set-ups.
Thanks for the info. I didn't think about the edge of cloud effect. I might even have to separate both additional panels or as suggested run them through a different controller. Thanks again!
