Q hotels reduced its energy consumption by more than 60% in 2009, compared to 2008.
In 2009, all 21 hotels in the group, which includes The Queens Hotel in Leeds, achieved a silver or bronze rating under the Green Tourism Business Scheme.
Michael Purtill, Qhotels' Managing Director, said the hotel company had achieved its CSR goals, including reducing energy use, by bringing together a dedicated team "to ensure environmental best practice across the group".
Other green measures included introducing water flow regulators for all showers and digital gas meters that can record data every half hour.
To mark the achievement, The Queens Hotel replaced its red carpet leading to the entrance with green turf.
Over the coming year, Qhotels plans to reduce the amount of waste it sends to landfill. The industry standard ratio of landfill waste to recycling is 50/50 - Qhotels plans to make sure its ratio is 70/30.
www.qhotels.co.uk