Design Strategies Offer Hospitals an Improved Environmental Footprint and Healthier Workplace for Staff and Patients Study Promotes Benefits of 'Targeting 100!' SEATTLE, May 13 /PRNewswire/ -- A new study presented at the CleanMed conference in Baltimore this week shows how hospitals, which account for four percent of all energy consumed in the U.S., can achieve a 60 percent reduction in energy utility use by redesigning the way they use energy. A newly constructed, code-compliant hospital can expect to save around $730,000 a year, according to the report.