Domaine Carneros is Napa Green certified, one of the most rigorous sustainability certifications the wine industry offers. We hold both the Napa Green Vineyard and Napa Green Winery certifications for our numerous efforts in water and energy conservation and waste diversion. Water used in the production process is recycled and used to irrigate our estate vineyards. Through composting, recycling, and re-use, over 90% of the winery's solid waste is diverted from landfills. Utilizing a packaging re-use program, Domaine Carneros annually repurposes 20-25% of its cases and inserts, and we have recycled over a million pieces of packaging since the start of our program in 2010. We started composting company-wide in 2013 and have eliminated over 4,000 tons of greenhouse gas emissions.
Domaine Carneros was one of the early adopters of solar power, installing the largest solar collection system of any winery in the world in 2003. Use of skylights, building into the earth, and employing night cooling systems to maintain cellar temperatures all contribute to energy conservation as well as robust employee involvement in daily conservation efforts.
In our efforts to utilize the newest sustainability technologies, in 2023 we were among the first wineries in Napa to install a solar microgrid and battery system. This system captures more solar energy and enables us to store that energy in a battery system which discharges throughout the night, so we are able to power the winery long after the sun goes down. With this system we are able to meet over 75% of the power needs of the winery and allow us to be self-sustaining during power outages.