Aon Center 
🚩

200 E Randolph St, 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
3,457,865 sqft
#7 Largest
#3 Largest of Offices
25x median
139,707 sqft
13x median Office
259,000 sqft
Built
1972
Primary Property Type
Office
Community Area
Loop
Ward
42
Owner
Not Tagged

Emissions & Energy Information for 2022

Greenhouse Gas Intensity C
20142022611610.8
6.1 kg CO2e / sqft
Lower than 55% of all buildings
1.0x median
6.4 kg CO2e / sqft
0.9x median Office
6.9 kg CO2e / sqft
Total Greenhouse Gas Emissions
2014202219,20034,51819,20034,518
19,331 tons CO2e
#14 Highest in Chicago* 🚩
#4 Highest of Offices 🚨
22x median
885.8 tons CO2e
11x median Office
1,832.2 tons CO2e

Years Reported 8/9
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

Energy Breakdown

Fossil Gas Use (aka Natural Gas)
2014202274,788,659106,045,32474,788,659106,045,324
84,739,207 kBtu
Est. Gas Bill: $1,010,000 for 2022**
#28 Highest in Chicago* 🚩
#2 Highest of Offices 🚨
15x median
5,818,399.6 kBtu
32x median Office
2,672,800.1 kBtu
Electricity Use
2014202282,280,448124,234,46982,280,448124,234,469
88,354,337 kBtu
Est. Electric Bill: $3,703,000 for 2022**
#29 Highest in Chicago* 🚩
#13 Highest of Offices 🚩
23x median
3,796,376.7 kBtu
9x median Office
10,340,763.6 kBtu
District Chilled Water Use
2014202255,385,31590,753,55855,385,31590,753,558
60,385,415 kBtu

Most buildings don't use district chilling, so we don't currently have comparison data.

Energy Mix A

Total Energy Use: 233,478,960 kBTU

38%Electricity36%Fossil Gas26%District Chilling
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View Extra Technical & Historic Info
Source Energy Usage Intensity
20142022116180115.6180.2
Not Reported

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

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 MixElectricity Use kBTUFossil Gas Use kBTU District
Steam 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
117,759,311106,045,324 - 88,093,124 178 3,193,966 - 84.0
2015 B C B A 10.834,518
41%Electricity
32%Fossil Gas
27%Other
124,234,46996,914,566 - 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
88,275,19694,297,294 - 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
120,212,30183,929,844 - 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
116,379,976100,591,184 - 82,314,008 158.6 3,193,966 4.0 70.0
2019-115,544,105104,670,562 - - 3,193,966 3.5 76.0
2020 B C A A 6.520,741
41%Electricity
34%Fossil Gas
25%Other
88,649,32074,788,660 - 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
82,280,44876,821,703 - 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
88,354,33784,739,207 - 60,385,416 122.6 3,457,865 3.5 77.0

* Note on Rankings: Rankings and medians are among included buildings, which are those who reported under the Chicago Energy Benchmarking Ordinance for the year 2022, 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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