In the U.S., large hotels (those larger than 8,000 square feet) spend
an annual average per square foot (ft2) of $1.05 on electricity and
$0.25 on natural gas. In a typical lodging facility, lighting, space heating,
and water heating represent close to 60 percent of total use,
making those systems the best targets for energy savings. For a fullservice
hotel, energy costs are usually between 4 and 6 percent of
revenue, but historic and luxury properties may see energy costs hitting
10 percent or more.