Ascension St Joseph Hospital - Chicago

How does Ascension St Joseph Hospital - Chicago 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. Ascension St Joseph Hospital - Chicago's ENERGY STAR score of 88 compares with an average of 56 across the 21 that report a score; it scores higher than 76% of them and lower than 14%. Its site EUI of 192.6 kBtu/ft² is about 16% below 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 15.9 kgCO₂e/ft² is about 22% below the group average of 20.4 kgCO₂e/ft².

At 680,295 sq ft, it is about 26% below the average floor area of 920,964 sq ft for those buildings. It was built in 1960, 6 years earlier 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 Ascension St Joseph Hospital - Chicago's energy performance changed over time?

BuildingCensus holds 10 Chicago disclosures for Ascension St Joseph Hospital - Chicago, covering report years 2014–2023. Its ENERGY STAR score went from 36 in 2014 to 88 in 2023 (+52 points). Site EUI moved from 239.0 kBtu/ft² (2014) to 192.6 kBtu/ft² (2023), a 19% decrease. Reported emissions went from 17,968 tCO₂e to 10,804 tCO₂e over the same span (down 40%).

What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Ascension St Joseph Hospital - Chicago's 192.6 kBtu/ft² across 680,295 sq ft works out to about 131 billion Btu (38,400 MWh-equivalent) in 2023. Its source EUI of 316.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 12,983,500 kWh of electricity, 867,097 therms of natural gas and 27,715 thousand gallons of water for the year.

Which law requires Ascension St Joseph Hospital - Chicago to report its energy use?

Ascension St Joseph Hospital - Chicago 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 2023 disclosure (source record chicago:102283:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.