Any examples of solar powered fans & heaters?

[cicichick]

Has anyone had success setting up a solar panel to power a simple fan in summer or heater in winter? Is it worth the expense and effort? Thanks in advance!
www.whitehousechickens.blogspot.com

 

[Ole rooster]

I've wondered the same thing. My main problem there is will 3 hours of sun be enough? That's all my spot will get in a day. Now in winter with the leaves gone it will be longer, but the summer and the heat I will be limited.