Grgich Hills Estate (formerly Grgich Hills Cellar) is a winery located in Rutherford, California in the heart of the Napa Valley. The winery changed its name in 2006 when it first began producing only "estate grown" wines made from grapes grown exclusively in vineyards owned by the winery. The Napa Valley Wine Train has a passenger stop located at Grgich Hills Estate. Grgich Hills' vineyards are certified organic and biodynamic and it converted to solar energy in 2006.