Aloft Chicago Mag Mile

How does Aloft Chicago Mag Mile compare with other hotel buildings in Chicago?

The latest disclosures cover 88 hotel buildings in Chicago, out of 3,852 buildings citywide. Aloft Chicago Mag Mile's ENERGY STAR score of 88 compares with an average of 51 across the 77 that report a score; it scores higher than 90% of them and lower than 8%. Its site EUI of 59.1 kBtu/ft² is about half of the average of 110.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 6.5 kgCO₂e/ft² is about 36% below the group average of 10.1 kgCO₂e/ft².

At 190,742 sq ft, it is about 45% below the average floor area of 343,808 sq ft for those buildings. It was built in 2018, 39 years later than the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².

How has Aloft Chicago Mag Mile's energy performance changed over time?

BuildingCensus holds 6 Chicago disclosures for Aloft Chicago Mag Mile, covering report years 2018–2023. Its ENERGY STAR score went from 83 in 2019 to 88 in 2023 (+5 points); its best year on file was 2020, at 96. Site EUI moved from 71.0 kBtu/ft² (2019) to 59.1 kBtu/ft² (2023), a 17% decrease. Reported emissions went from 1,147 tCO₂e to 1,239 tCO₂e over the same span (up 8%).

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. Aloft Chicago Mag Mile's 59.1 kBtu/ft² across 190,742 sq ft works out to about 11.3 billion Btu (3,304 MWh-equivalent) in 2023. Its source EUI of 129.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,159,652 kWh of electricity, 39,131 therms of natural gas and 8,561 thousand gallons of water for the year.

Which law requires Aloft Chicago Mag Mile to report its energy use?

Aloft Chicago Mag Mile 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:255944:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.