Back porch roof - Skylights?

I'm working on designing a roof over my back deck (south facing) spans 40' x 16'. The back of our house had nice windows, and we get a ton of natural light. Obviously we plan on losing a bit of light, but want to incorporate 5 - 3' x 5' skylights with solar shades. Has anyone done this? How much light do the skylights help bring back? Any other ideas? Also debating evenly spacing the skylights vs placing them above windows where possible. Any input would be appreciated!