Solar will cost more, but save on electric over time. I DO NOT have solar but I do have an electric fan that turns on at 120f and it comes on OFTEN. Its also loud and sucks down power. Now the solar fans, I want to say was like $400 installed. That fan was rated at 1400 sq ft. That would be bigger than my house. It is also rated much quieter, which would be great compared to what I have now. I WILL be getting one, when ever its time to replace the roof.
