As many of you are aware, we have installed, and are testing an inflator fan which is run totally by solar power. We would like to eliminate or reduce the amount of variables and unknowns before we make this package available. One of the big questions has to do with how many days the little fan can run the way it is supposed to on consecutive cloudy days. During the aftermath of Hurricane Patricia we experienced numerous cloudy days in a row with the temperature just above freezing.
There is not enough margin for leeway in this package so we are checking out a smaller fan. If this works, then this would be the way to go for the smaller greenhouses. Our greenhouse has about 500 sq.ft. of double cover which is not all that big. This would also confirm that we need either need a bigger storage battery or a second solar panel.
Please stay tuned for more updates.