The owner of brands, such as Beefeater, Brewers Fayre and Table Table, has started powering its entire UK operations with 100% renewable energy.
From 1st April, Whitbread brands, which also includes Costa Coffee and Premier Inn, have been sourcing their purchased electricity in the country from green projects.
That includes 68,000 Premier Inn rooms and 2,200 Costa Coffee stores.
James Pitcher, Director of Sustainability for Whitbread said: “As the UK’s largest hospitality brand, we have a responsibility and an opportunity to drive change within the industry, which is why we have made this decision for the business.
“Whitbread is committed to minimising its environmental impact and operating in a way that respects people and the planet and we hope this will be a landmark step in helping to set the industry standard.”