Ah, I know that area. There used to be a restaurant in Boulder Creek that made the best "Texas No Bean" Chile. Plus I lived in Scott's Valley for awhile with wife #1.

In a house set into a grove of Redwoods. So, I understand the problem. Any creeks nearby?

A small "in-line" turbine can throw off a lot of power. If you have enough flow you don't have to build a dam.