The short answer is that your high utility costs may be the fault of your washing machines. Traditional washing machines get fabrics clean by utilizing a combination of copious amounts of hot water, strong chemicals, and rough agitation – and a great deal of fabric-rotting soaking in increasingly soiled water.
Heating the water takes up a significant amount of electric or gas (depending on your water heating system), while the washing cycle of a traditional laundry machine consumes entire bathfuls of water with each load.
Repeat this process dozens of times each day, and any hotel can find their utility costs climbing through the proverbial roof.