ESG Today writes that the investment could transform the brewery in one of the most efficient in the world by 2030. As per Diageo officials, the announcement is part of the company's 10-year sustainability program, which will carry until 2030 and includes things like sourcing 100% renewable power, achieving net-zero emissions throughout the operations and collaborating with suppliers to cut indirect emissions by 50% before the next decade.

The St. James Gate facility will implement a green power strategy, which will combine on-grid green energy and efficient heat pumps, as well as a water recovery unit by 2030. Water efficiency is also on the sustainability list for Guinness' parent company, as it plans to achieve a 30% reduction in water usage.

Debra Crew, Global Chief Executive Officer at Diageo, said that "St. James’s Gate is an historic location for an iconic brand. We’re 260 years into our 9,000-year lease at St. James’s Gate and this investment will ensure that Guinness has an exciting and long-term sustainable future. We are proud to lead the way on decarbonization, both as a major Irish business and as an industry-leading company."

On-site Scope 1 and 2 emissions are expected to drop by 90% thanks to a complete phase-out of fossil fuels.