318 N. Carpenter

How does 318 N. Carpenter compare with other office buildings in Chicago?

The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. 318 N. Carpenter's ENERGY STAR score of 98 compares with an average of 69 across the 320 that report a score; it scores higher than 98% of them and lower than 0%. Its site EUI of 30.5 kBtu/ft² is about 57% below the average of 70.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.9 kgCO₂e/ft² is about 61% below the group average of 7.5 kgCO₂e/ft².

At 104,849 sq ft, it is about 79% below the average floor area of 488,124 sq ft for those buildings. It was built in 2019, 63 years later than the group's average year built (1957). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has 318 N. Carpenter's energy performance changed over time?

BuildingCensus holds 2 Chicago disclosures for 318 N. Carpenter, covering report years 2022–2023. Its ENERGY STAR score was 98 in both 2022 and 2023. Site EUI moved from 32.4 kBtu/ft² (2022) to 30.5 kBtu/ft² (2023), a 6% decrease. Reported emissions went from 312 tCO₂e to 308 tCO₂e over the same span (down 1%).

What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 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. 318 N. Carpenter's 30.5 kBtu/ft² across 104,849 sq ft works out to about 3.2 billion Btu (937 MWh-equivalent) in 2023. Its source EUI of 58.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 466,941 kWh of electricity and 16,000 therms of natural gas for the year.

Which law requires 318 N. Carpenter to report its energy use?

318 N. Carpenter 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:256888:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.