photovoltaic or solar thermal?
I basically want it to be a more high tech version of Spiral Island, but I have two questions.
1.) I'm trying to decide on whether or not I should use a Solar thermal generator or an array of Photovoltaic panels, but which has a better efficiency rate in terms of power and cost?
2.) Does anyone have any suggestions on plumbing? cause so far all I've thought of is a self composting toilet, but it would be really cool to have running water.