I want to build a "green" energy efficient house in central KY, and need guidance, geothermal energy? Solar? Gas?

It is much done in a restricted area, a golf course and the front of the lot faces east.

Here are some links to help ……. Also see local building codes (obviously, I know), because some places have restrictions on things such as straw bale buildings.

18′ Foot Long, Giant Home Putting Surface, Priced for Everyone.