Lagunitas Brewing Company is a craft brewery that was founded in 1993 in Petaluma, California by Tony Magee. Since its inception, the company has grown to become one of the largest craft breweries in the United States, with distribution in over 20 countries worldwide. The company prides itself on its commitment to sustainability and environmental stewardship, and has implemented a number of initiatives to reduce its carbon footprint and promote renewable energy.

One of the key ways that Lagunitas Brewing Company has worked to reduce its carbon footprint is through decarbonisation. Decarbonisation is the process of reducing or eliminating carbon emissions from a particular process or system. In the case of Lagunitas, this has involved implementing a number of energy efficiency measures throughout its brewing process, as well as investing in renewable energy sources.

One of the most significant investments that Lagunitas has made in renewable energy is through the use of corporate power purchase agreements (PPAs). A corporate PPA is a contract between a company and a renewable energy provider, in which the company agrees to purchase a certain amount of renewable energy from the provider over a specified period of time. By entering into a corporate PPA, Lagunitas is able to support the development of renewable energy projects, while also reducing its reliance on fossil fuels.

In addition to its use of corporate PPAs, Lagunitas has also implemented a number of other initiatives to promote renewable energy. For example, the company has installed a solar panel array at its Petaluma brewery, which generates a significant portion of the brewery's electricity needs. The company has also implemented a number of energy efficiency measures, such as using high-efficiency lighting and HVAC systems, to reduce its overall energy consumption.

Lagunitas' commitment to sustainability and environmental stewardship extends beyond its energy use. The company has also implemented a number of initiatives to reduce its water usage, such as installing water-saving technologies and implementing a water recycling program. In addition, the company has implemented a number of waste reduction initiatives, such as composting and recycling programs, to minimize its environmental impact.

Overall, Lagunitas Brewing Company is a leader in the craft brewing industry when it comes to sustainability and environmental stewardship. Through its use of corporate PPAs, renewable energy investments, and energy efficiency measures, the company has made significant strides in reducing its carbon footprint and promoting renewable energy. As the company continues to grow and expand its operations, it is likely that it will continue to prioritize sustainability and environmental stewardship, making it a model for other companies in the industry to follow.