Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?
Getting daylight deep into the house in the season when there is least of it and the sun is low. A window at eye level lights the first few metres; getting light further in takes height or a duct. The options differ in whether they let light in high up or carry it through the roof.