Address: 136 Mitchell Blvd, San Rafael, CA 94903 Sun First Solar is one of the top solar companies in the bay area. Since opening in 1984, Sun First solar offers competitive pricing quality workmanship over other solar companies in the bay area. If you are interested in saving on energy costs, being more sustainable and working with a company that gives back to the community, contact Sun First Solar, one of the best solar companies in the bay area.