From this passively heated and cooled, solar powered residence in Royal, Alabama, Earth Steward Solar Consulting principal, Daryl Bergquist, works with clients throughout north and central Alabama to accomplish passive space heating and cooling, solar water heating, and solar photovoltaic electricty generation. Daryl is certified by AET for Solar Water Heating Installation since 2005 and by NABCEP as a Solar PV Installer since 2006.