NMH Prentice Womens Hospital

How does NMH Prentice Womens Hospital compare with other hospital (general medical & surgical) buildings in Chicago?

The latest disclosures cover 25 hospital (general medical & surgical) buildings in Chicago, out of 3,852 buildings citywide. NMH Prentice Womens Hospital's ENERGY STAR score of 68 compares with an average of 56 across the 21 that report a score; it scores higher than 62% of them and lower than 29%. Its site EUI of 207.3 kBtu/ft² is roughly in line with the average of 229.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 17.9 kgCO₂e/ft² is about 12% below the group average of 20.4 kgCO₂e/ft².

At 945,000 sq ft, it is roughly in line with the average floor area of 920,964 sq ft for those buildings. It was built in 2007, 41 years later than the group's average year built (1967). Across all 24 jurisdictions BuildingCensus covers, the 748 hospital (general medical & surgical) buildings average an ENERGY STAR score of 59 and a site EUI of 238.7 kBtu/ft².

How has NMH Prentice Womens Hospital's energy performance changed over time?

BuildingCensus holds 9 Chicago disclosures for NMH Prentice Womens Hospital, covering report years 2014–2022. Its ENERGY STAR score went from 52 in 2014 to 68 in 2022 (+16 points). Site EUI moved from 214.0 kBtu/ft² (2014) to 207.3 kBtu/ft² (2022), a 3% decrease. Reported emissions went from 23,129 tCO₂e to 16,896 tCO₂e over the same span (down 27%).

What does an ENERGY STAR score of 68 mean?

ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 68 means the building performs better than about 68% of its national peers. BuildingCensus bands the score into report-card grades; 68 falls in band C — below median (55–69). It sits 7 points below 75, the threshold for ENERGY STAR certification. In Chicago, 35% of scored buildings are at 75 or above.

Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. NMH Prentice Womens Hospital's 207.3 kBtu/ft² across 945,000 sq ft works out to about 195.9 billion Btu (57,412 MWh-equivalent) in 2022. Its source EUI of 370.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 24,200,749 kWh of electricity and 1,133,380 therms of natural gas for the year.

Which law requires NMH Prentice Womens Hospital to report its energy use?

NMH Prentice Womens Hospital reports under the Building Energy Use Benchmarking Ordinance, the legal basis of the Chicago Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2022 disclosure (source record chicago:103615:2022). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.