Hilton Worldwide saved more than $74million in utility costs in 2010, following a 6.6% reduction in energy use compared to 2008.
The hotel group also reduced its carbon output by 7.8% over the two years, across it portfolio of 10 hotel brands.
Waste has been cut by 19% and water use by 3.8% over the period.
The savings made by Hilton are equivalent to removing 50,000 cars from the road, according to Christopher Nassetta, the hotel group’s CEO.
“Sustainability is a priority for Hilton Worldwide and a central part of how the company does business,” he said.
Hilton Worldwide, which includes Hilton Hotels and Resorts, Doubletree by Hilton and Waldorf Astoria, uses its own sustainability measurement system, Lightstay, to gauge improvements.
“LightStay has provided us with a platform to measure hotel performance and economic improvement,” said Nassetta, “proving to be invaluable given today’s increased operational demands and resource constraints.”
Hilton Worldwide wants to reduce energy consumption, CO2 emissions and waste output by 20 percent by 2014.