Home Green Products Guide What will be the cost for installing solar power vents?

What will be the cost for installing solar power vents?

I am an owner of a very pretty garden and I have an idea of making it more environment friendly by installing solar power vents. But I am confused from where to get the solar power vents what will be the maintenance cost of it etc. I really want to get them fixed in my garden as soon as possible, is there way. Looking for suggestion and feedback.