Aon Center 
🚩

200 E. Randolph Street, Chicago IL, 60601 Find on Google Maps (opens in a new tab)

Chicago Building ID: 101713

Attribution: Source (opens in a new tab)

Building Info

Square Footage
3,193,966 sqft
#5 Largest
#3 Largest of Offices
26x median
124,364 sqft
14x median Office
231,240 sqft
Built
1972
Primary Property Type
Office
Community Area
Loop
Ward
42
Chicago Energy Rating (opens in a new tab)
4.0 / 4
Owner
Not Tagged

2023 Report Card

Overall Grade
B
Emissions Intensity - 50%
C
Energy Mix - 40%
A
Consistent Reporting - 10%
A
Learn About Our Grading

Emissions & Energy Information for 2023

Greenhouse Gas Intensity C
5.9 kg CO2e / sqft
Lower than 56% of all buildings
1.0x median
6.2 kg CO2e / sqft
0.9x median Office
6.6 kg CO2e / sqft
201420236115.910.8
Total Greenhouse Gas Emissions
18,913 tons CO2e
#16 Highest in Chicago* 🚩
#5 Highest of Offices 🚨
22x median
841.4 tons CO2e
11x median Office
1,647.9 tons CO2e
2014202318,91334,51818,91334,518

Years Reported 9/10
A Help icon

  • 2014 data reported

    2014

  • 2015 data reported

    2015

  • 2016 data reported

    2016

  • 2017 data reported

    2017

  • 2018 data reported

    2018

  • 2019 data not reported

    2019

  • 2020 data reported

    2020

  • 2021 data reported

    2021

  • 2022 data reported

    2022

  • 2023 data reported

    2023

Energy Breakdown for Aon Center

Fossil Gas Use (aka Natural Gas)
68,682,641 kBtu
Est. Gas Bill: $819,000 for 2023**
#31 Highest in Chicago* 🚩
#3 Highest of Offices 🚨
12x median
5,517,828 kBtu
14x median Office
4,958,713.7 kBtu
2014202368,682,641106,045,32468,682,641106,045,324
Electricity Use
86,452,665 kBtu
Est. Electric Bill: $3,623,000 for 2023**
#24 Highest in Chicago* 🚩
#10 Highest of Offices 🚨
24x median
3,580,332.6 kBtu
9x median Office
9,303,318.1 kBtu
2014202382,280,448124,234,46982,280,448124,234,469
District Chilled Water Use
59,941,055 kBtu
8x median
7,765,434.2 kBtu
2014202355,385,31590,753,55855,385,31590,753,558

Energy Mix A

Total Energy Use: 215,076,362 kBTU

40%Electricity32%Fossil Gas28%District Chilling
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View Extra Technical & Historic Info
Source Energy Usage Intensity
Not Reported

This data was not reported for this building this year, which likely means a value of zero for this field.

20142023116180115.5180.2
Site Energy Usage Intensity
Not Reported

This data was not reported for this building this year, which likely means a value of zero for this field.

Full Historical Data Table for Aon Center

Year Overall
Grade 		Emissions
Intensity
Sub-Grade 		Energy Mix
Sub-Grade 		Reporting Mix
Sub-Grade 		GHG Intensity kg CO2e / sqft GHG Emissions metric tons CO2eEnergy Mix Electricity Use kBTU Fossil Gas Use kBTU District Chilled
Water Use kBTU		Source EUI kBTU / sqft Floor Area sqft Chicago Energy
Rating 		Energy Star
Score
2014 B B C A 10.6333,948
38%Electricity
34%Fossil Gas
28%Other
 117,759,311 106,045,324 88,093,124 178 3,193,966 - 84.0
2015 B C B A 10.834,518
41%Electricity
32%Fossil Gas
27%Other
 124,234,469 96,914,566 83,482,875 180.2 3,193,966 - 82.0
2016 B C A A 8.226,072
32%Electricity
34%Fossil Gas
33%Other
 88,275,196 94,297,294 90,753,559 146.2 3,193,966 - 92.0
2017 C D A A 9.731,057
42%Electricity
29%Fossil Gas
29%Other
 120,212,301 83,929,844 82,640,930 171.7 3,193,966 - 85.0
2018 B D A A 9.129,059
39%Electricity
34%Fossil Gas
28%Other
 116,379,976 100,591,184 82,314,008 158.6 3,193,966 4.0 70.0
2019- 115,544,105 104,670,562 - 3,193,966 3.5 76.0
2020 B C A A 6.520,741
41%Electricity
34%Fossil Gas
25%Other
 88,649,320 74,788,660 55,385,316 118.1 3,457,865 4.0 81.0
2021 B C A A 619,200
37%Electricity
34%Fossil Gas
29%Other
 82,280,448 76,821,703 63,680,136 115.6 3,457,865 3.5 77.0
2022 B C A A 6.119,331
38%Electricity
36%Fossil Gas
26%Other
 88,354,337 84,739,207 60,385,416 122.6 3,457,865 3.5 77.0
2023 B C A A 5.918,913
40%Electricity
32%Fossil Gas
28%Other
 86,452,665 68,682,641 59,941,055 115.5 3,193,966 4.0 79.0

* Note on Rankings: Rankings and medians are among included buildings, which are those who reported under the Chicago Energy Benchmarking Ordinance for the year 2023, which only applies to buildings over 50,000 square feet.

** Note on Bill Estimates: Estimates for gas and electric bills are based on average electric and gas retail prices for Chicago in 2021 and are rounded. We expect large buildings would negotiate lower rates with utilities, but these estimates serve as an upper bound of cost and help understand the volume of energy a building is used by comparing it to your own energy bills! See our Chicago Gas & Electric Costs Source (opens in a new tab) for the original statistics.

Data Source: Chicago Energy Benchmarking Data (opens in a new tab)

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