How does your hospital stack up: Report examines electricity, fossil fuel, water/sewer, carbon footprint

The Grumman/Butkus Associates 2015 Hospital Benchmarking Survey has been released. Hospitals’ energy costs per square foot have fluctuated greatly since 1999. Energy use intensity (Btu/sq ft/year) fell in 2014 after a fairly sharp rise in 2013, probably due to a somewhat milder winter in 2013-14 versus 2012-13.


Hospitals’ energy costs per square foot (red boxes) have fluctuated greatly since 1999. Energy use intensity (Btu/sf/year) fell in 2014 after a fairly sharp rise in 2013, probably due to a somewhat milder winter in 2013-14 vs. 2012-13. Courtesy: Grumman/B

Grumman/Butkus Associates has released the results of its 2015 Hospital Energy and Water Benchmarking Survey, focusing on healthcare facilities' resource usage trends and costs for calendar year 2014.

Since the survey was initiated 20 years ago, hospitals' overall fossil fuel use has trended downward, but electricity use isn't declining much. The average combined Btu/sq ft for facilities in the survey (electricity plus gas/steam) was 232,981 in CY2014, compared with 248,456 in the 2014 survey (CY2013). (Harsher winter temperatures in 2012-13 compared with 2013-14 likely had something to do with the usage decline.)

Square-foot prices for gas/steam were up year-to-year ($1.01 in 2013, vs. $1.16 in 2013), but square-foot prices for electricity fell ($2.26 in 2013 versus $2.12 in 2014). The overall result of these usage and pricing patterns was that hospitals' total sq ft costs for energy (gas/steam plus electric) hardly changed: $3.29 in CY2014, versus $3.27 in CY2013.

Carbon footprint results have stayed fairly steady over time, at about 60 pounds of CO2 equivalent per sq ft/year, but have been slowly trending downward since 2010.

Reporting facilities displayed a broad range of usage patterns. For instance, some participants are using more than 200,000 Btu/sq ft in fossil fuel annually, compared with a general mid range of facilities (about 150,000 Btu/sq ft/year) and those that used least (100,000 Btu/sq ft/year). Similarly, a few hospitals consume more than 40 kWh/sq ft/year in electricity, compared with a mid-range of about 25 kWh/sq ft/year. A few squeaked by with less than 20 kWh/sq ft.

"Hospitals are investing in efficiency measures and making progress, but have much further to go," said G/BA Chairman Daniel L. Doyle. "Some of the low-hanging fruit is gone, but there are still many cost-effective opportunities remaining for reducing energy usage and costs."

Hospital water use is also gradually declining, currently averaging about 49 gallons per square foot per year (compared with nearly 70 gallons/sq ft/year a decade ago). Costs per gallon are rising, however, now averaging $0.38/sq ft. As recently as 2007, hospitals were paying just $0.27/sq ft. "The downward usage trend reflects a movement to eliminate city-water-cooled equipment, as well as the increased use of low-flow and occupancy-based plumbing fixtures," said Doyle. "Water usage is an emerging issue. There is still much room for improvement."

The G/BA survey has provided a free annual benchmarking resource since its initial release in 1995. Hospitals are invited to participate without charge by submitting responses to a short list of questions. Information for this edition was provided by 117 hospitals located in Illinois (56), Wisconsin (33), Michigan (5), Indiana (5), and seven other states.

Full results and analysis, as well as information about participating in the 2015 survey, are available on the firm's website

No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Commissioning lighting control systems; 2016 Commissioning Giants; Design high-efficiency hot water systems for hospitals; Evaluating condensation and condensate
Solving HVAC challenges; Thermal comfort criteria; Liquid-immersion cooling; Specifying VRF systems; 2016 Product of the Year winners
MEP Giants; MEP Annual Report; Mergers and acquisitions; Passive, active fire protection; LED retrofits; HVAC energy efficiency
Driving motor efficiency; Preventing Arc Flash in mission critical facilities; Integrating alternative power and existing electrical systems
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Designing generator systems; Using online commissioning tools; Selective coordination best practices
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.
click me