The record by year
On the record as of October 27, 2026.
An act sits on the day it happened: the day its own sentence names, or the day its source gives for it. An act the record knows only from the date of the article that reported it sits under that article's month, one tap away, marked Reported with the article's date. So do background, plans and statements, which are not acts. The same act reported by several sources is one line with the reports behind it, on its day where any of them dates it. The milestones alone, for every state, are on the timeline.
38 acts on the line for Illinois, from 115 dated lines in the records' histories and the scorecard. 33 more acts are dated only by the article that reported them and sit under their month. 8 lines report an act already listed. 36 lines are background, plans or statements. 16 lines sit on a date other than the one they were filed under, because their own sentence names the day, the month or the year it happened; each says so. Where a line sits is read from its own words and the row is never changed (how dates are read).
2026 32 acts on the line from 37 reports; 33 reported, dated only by the article; 36 lines of background, plans and statements
September 2026 7 acts on the line from 8 reports; 18 reported; 25 lines of background, plans and statements
Chicago Mayor Brandon Johnson proposed a one year moratorium on new data center construction to develop new regulations on zoning, water and power usage, and quality of life for residents.
nbcchicago.com (opens in a new tab), local outlet
Mayor Brandon Johnson introduced an ordinance to Chicago City Council to pause construction of any new data center for 12 months and block material expansion of existing ones.
blockclubchicago.org (opens in a new tab), local outlet
1 more report of this
- Reported September 23 Chicago Mayor Brandon Johnson and aldermen Maria Hadden, Leni Manaa Hoppenworth and Lamont Robinson introduced an ordinance to pause data center development and material expansion for one year yahoo.com (opens in a new tab)
Alderman Bill Conway introduced an ordinance that would add additional regulations for data centers and ban them in some districts, though it stops short of a citywide moratorium.
blockclubchicago.org (opens in a new tab), local outlet
Circuit Judge Adam Giganti set the stage for an October 9 hearing about a motion to dismiss on September 11, 2026
illinoistimes.com (opens in a new tab), local outlet
Troy Planning Commission voted 5-0 on September 10 to extend data center moratorium until March 2027.
timestribunenews.com (opens in a new tab), news outlet
A data center opposition group in Morris plans to hold several community meetings regarding a proposed data center.
elibrary.ferc.gov (opens in a new tab), primary source
Mattoon City Council unanimously approved a 1 year data center moratorium on September 2, 2026
wandtv.com (opens in a new tab), local outlet (the day its own sentence names)
Reported in September 2026, dated only by the article that carried them: 18 acts
JB Pritzker directed his administration to stop the processing of new data center agreements
shawlocal.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
The Champaign County Data Center Activities Task Force drafted an ordinance to set regulations for large data center development.
dailyillini.com (opens in a new tab), news outlet (dated only by the report that carried it, so under the month of the report)
Chicago Mayor Brandon Johnson announces a city wide temporary moratorium on data center development and expansion for 12 months while the city develops a comprehensive regulatory framework
talkingpointsmemo.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
A six month moratorium on data center construction in Aurora expired, and the city passed regulations limiting water and power usage and where the centers can be built.
nbcchicago.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Illinois Gov. JB Pritzker established a Cabinet to provide advice on the advancement of AI
realtor.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
Illinois Racing Board denied Hawthorne Race Course a permit to conduct horse races in a monthly meeting
blackchronicle.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Logan County submitted draft data center ordinance for committee review
pantagraph.com (opens in a new tab), news outlet (dated only by the report that carried it, so under the month of the report)
Livingston County submitted draft data center ordinance for committee review
pantagraph.com (opens in a new tab), news outlet (dated only by the report that carried it, so under the month of the report)
Residents filed lawsuit against T5 with hearing scheduled for November 2026
thebrockovichreport.com (opens in a new tab), news outlet (dated only by the report that carried it, so under the month of the report)
Elgin City Council gave preliminary approval to one year moratorium on data center development
chicagotribune.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
South Elgin village board denied data center application following resident uproar
chicagotribune.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
T5 Grayslake issued its first building permit for 800,000 square foot data center on 473 acre site
patch.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Lake County board approved eight month moratorium on data centers in unincorporated areas, effective through May 2027.
thecentersquare.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
2 more reports of this
- Reported September 10 Lake County Board approved an eight month moratorium on data center development in unincorporated areas patch.com (opens in a new tab)
- Reported September 11 Lake County approved an eight month data center moratorium patch.com (opens in a new tab)
Illinois Governor JB Pritzker announced a two year suspension of data center incentives beginning July 1, 2026 to study industry impact on energy demand and water use.
newsweek.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
Illinois moved to halt data center tax breaks
dailycaller.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
Mayor Brandon Johnson signed an executive order creating stricter data center regulations and oversight
springfieldnewssun.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Grayslake Data Center received first permit in $18 billion T5 development
patch.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Champaign County Data Center Activities Task Force formed to propose guardrails for large data centers after moratorium is lifted
ipmnewsroom.org (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Also on the record for September 2026, not acts of their own: 25 lines of background, plans and statements
Mayor Johnson's executive order last month called for a moratorium while the city develops a regulatory framework for data centers
yahoo.com (opens in a new tab) (a statement; who said what is on the statements pages)
Chicago executive order provided for enhanced evaluation of air pollution control permits, data center specific noise rules, and cross departmental review process for planned developments including data centers
thecentersquare.com (opens in a new tab) (a description, not an act)
Logan County ordinance amendment requires 30 day written notice period followed by 60 day cure period for environmental discharge
pantagraph.com (opens in a new tab) (a description, not an act)
Logan County ordinance sets 50 foot height cap and 750 foot setback from existing occupied dwelling on nonparticipating property
pantagraph.com (opens in a new tab) (no act in the sentence)
Growing debate in Illinois over data centers balancing AI boom with rising electricity costs
fox.com (opens in a new tab) (a description, not an act)
Equinix facility in Elk Grove Village uses closed loop cooling system to conserve water
fox.com (opens in a new tab) (a description, not an act)
Final vote on Elgin moratorium will happen at future city council meeting
chicagotribune.com (opens in a new tab) (a plan or a schedule, not an act yet)
Aurora ordinance requires data centers to conduct sound level studies and resource consumption reports and lowers maximum sound levels
chicagotribune.com (opens in a new tab) (a description, not an act)
Across Chicagoland, data centers facing utility crackdowns and political backlash, with municipalities recommending or implementing moratoriums
therealdeal.com (opens in a new tab) (a description, not an act)
Chicagoland suburbs suing data center companies; Cicero mobilizing legal challenge to Digital Realty Hawthorne development
therealdeal.com (opens in a new tab) (no act in the sentence)
Powers Act is a data center regulation bill that did not move forward during the spring legislative session in Springfield
abc7chicago.com (opens in a new tab) (a description, not an act)
State lawmakers are expected to revisit the Powers Act later in 2026
abc7chicago.com (opens in a new tab) (a plan or a schedule, not an act yet)
Moratorium will remain in effect through May 2027
patch.com (opens in a new tab) (a plan or a schedule, not an act yet)
T5 Grayslake campus planned to include 11 buildings totaling 6.75 million square feet
patch.com (opens in a new tab) (a plan or a schedule, not an act yet)
The moratorium puts any potential data center applications in unincorporated Lake County on hold until May 2027
cities929.com (opens in a new tab) (no act in the sentence)
Mayor Johnson called for a temporary moratorium on new data centers
springfieldnewssun.com (opens in a new tab) (a statement; who said what is on the statements pages)
Morris Data Center Opposition Group plans to hold several community meetings
wspynews.com (opens in a new tab) (a plan or a schedule, not an act yet)
Proposed ordinance would require data centers to comply with most recent International Energy Conservation Code
ipmnewsroom.org (opens in a new tab) (a plan or a schedule, not an act yet)
Proposed ordinance would limit size and geographic location of new large data centers; for example, to avoid or mitigate impact on wildlife to sustainable level of mortality
ipmnewsroom.org (opens in a new tab) (a plan or a schedule, not an act yet)
Temporary ban on large scale data centers currently in effect expires in mid April 2027
ipmnewsroom.org (opens in a new tab) (no act in the sentence)
Task force will send ordinance to Champaign County Environment and Land Use Committee for review
ipmnewsroom.org (opens in a new tab) (a plan or a schedule, not an act yet)
Ordinance draft must be approved by Champaign Zoning Board of Appeals before Champaign County Board can vote on it
ipmnewsroom.org (opens in a new tab) (a description, not an act)
A data center debate is underway in Decatur
thecentersquare.com (opens in a new tab) (a description, not an act)
A presentation on data center proposals in Decatur generated heated debate
wandtv.com (opens in a new tab) (no act in the sentence)
T5 and the village of Grayslake are moving forward with a data center development that has received its first permit in what is described as an $18 billion development, while a resident lawsuit is ongoing.
villageofgrayslake.com (opens in a new tab) (a description, not an act)
August 2026 7 acts on the line from 8 reports; 12 reported; 10 lines of background, plans and statements
Public task force meeting held on August 31, 2026 to discuss ordinance with residents
ipmnewsroom.org (opens in a new tab), local outlet
The village announced on August 19 that it was regretfully postponing the extended public comment session due to safety concerns
lakemchenryscanner.com (opens in a new tab), news outlet
South Elgin rejected a data center development, becoming the latest Chicagoland village to do so.
southelgin.com (opens in a new tab), news outlet
Lake County Zoning Board of Appeals voted 6-0 to recommend a temporary eight month moratorium on data centers in unincorporated county areas on August 18, 2026
chronicleillinois.com (opens in a new tab), local outlet
1 more report of this
- Reported September 9 Lake County board approved an eight month moratorium on data centers in unincorporated areas cities929.com (opens in a new tab)
Locals rallied against a Chicago quantum park development and the company committed to not including a data center.
chicago.gov (opens in a new tab), primary source
Mayor Brandon Johnson issued an executive order last month to regulate data centers and called on the city council to pass a moratorium on new data centers
thecentersquare.com (opens in a new tab), national outlet (the month its own sentence names; no day is given; filed under Sep 21, 2026)
Johnson created a task force in August via an executive order to establish a regulatory framework for data centers in Chicago.
blockclubchicago.org (opens in a new tab), local outlet (the month its own sentence names; no day is given; filed under Aug 1, 2026)
Reported in August 2026, dated only by the article that carried them: 12 acts
Bloomington held long public forum on data centers with panel discussion
wglt.org (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Governor Pritzker paused new state data center tax credit agreements starting July 1, 2026
gadgetreview.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
Tazewell County Board amended zoning code to prohibit land uses not explicitly allowed and directed zoning department not to accept data center petitions until ordinance is drafted
933thedrive.com (opens in a new tab), news outlet (dated only by the report that carried it, so under the month of the report)
Woodford County Board approved six month moratorium on data center applications with option for six month extension, running through February 2027
933thedrive.com (opens in a new tab), news outlet (dated only by the report that carried it, so under the month of the report)
Stickney board of trustees voted unanimously to block any data center proposals with a moratorium on zoning changes and approvals for data centers
chicago.suntimes.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Cicero trustees passed a resolution opposing data center development at Hawthorne in neighboring Stickney
chicago.suntimes.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
South Elgin rejected a data center development
therealdeal.com (opens in a new tab), trade press (dated only by the report that carried it, so under the month of the report)
Illinois Governor JB Pritzker halted new sales tax exemptions for data centers until lawmakers impose tougher standards on their operations
cnn.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
Chicago City Council voted near unanimously on an ordinance incentivizing data center development
news.wttw.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Mayor Brandon Johnson issued an executive order calling on Chicago City Council to pause new data center construction
news.wttw.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
The working group report recommended the city create a new program for issuing noise and air pollution permits and enhancing environmental review
news.wttw.com (opens in a new tab), local outlet (dated only by the report that carried it, so under the month of the report)
Chicago Mayor Brandon Johnson signed an executive order for stricter data center regulations
cbsnews.com (opens in a new tab), national outlet (dated only by the report that carried it, so under the month of the report)
Also on the record for August 2026, not acts of their own: 10 lines of background, plans and statements
The Grayslake Village Board was set to hold a one time extended public comment session on August 20 for the public to speak on the approved T5 @ Chicago IV data center campus
lakemchenryscanner.com (opens in a new tab) (a plan or a schedule, not an act yet)
Bloomington Planning Commission scheduled hearings on data center policy for October 1 and November 5
wglt.org (opens in a new tab) (a plan or a schedule, not an act yet)
Town of Normal also planning to place data center policies before planning commission
wglt.org (opens in a new tab) (a plan or a schedule, not an act yet)
Illinois governor's race involves data center regulations as a deciding issue
therealdeal.com (opens in a new tab) (a description, not an act)
Mayor Brandon Johnson was pressured by anti data center activists at a rally
chicagotribune.com (opens in a new tab) (no act in the sentence)
Mayor Brandon Johnson called for a temporary moratorium on data centers
cbsnews.com (opens in a new tab) (a statement; who said what is on the statements pages)
Mayor Brandon Johnson pushed new rules and moratorium on new data centers
axios.com (opens in a new tab) (no act in the sentence)
Proposed eight month moratorium on data centers in unincorporated Lake County would put hold on data center applications until May 2027
lakecountyil.gov (opens in a new tab) (a plan or a schedule, not an act yet)
Currently, data centers are not specifically defined or regulated under Lake County Code
lakecountyil.gov (opens in a new tab) (a description, not an act)
Lake County has not received any proposals to develop a data center in unincorporated Lake County to date
lakecountyil.gov (opens in a new tab) (a description, not an act)
July 2026 8 acts on the line from 9 reports; 2 reported
Residents of Decatur raised concerns about a data center project at a town hall meeting.
decaturil.gov (opens in a new tab), primary source
Residents sued to stop a data center project in Sangamon County.
sangamonil.gov (opens in a new tab), primary source
Residents filed a lawsuit July 6, 2026 against Sangamon County and the County Board seeking to overturn the April 7 approval
illinoistimes.com (opens in a new tab), local outlet (the day its own sentence names; filed under Sep 23, 2026)
Waverly residents filed a lawsuit July 6 against Sangamon County and the Sangamon County Board seeking to overturn the county's approval of the CyrusOne data center
springfieldbusinessjournal.com (opens in a new tab), news outlet (the day its own sentence names; filed under Jul 9, 2026)
1 more report of this
- Reported July 10 Residents near the proposed Sangamon County data center filed a lawsuit sj-r.com (opens in a new tab)
A developer withdrew a rezoning request for a controversial data center in Hoffman Estates, ending the permitting effort for the site.
hoffmanestates.org (opens in a new tab), news outlet
A city working group on sustainable data centers spent over a year and a half developing recommendations, with report released in July 2026
news.wttw.com (opens in a new tab), local outlet (the month its own sentence names; no day is given; filed under Aug 13, 2026)
A lawsuit was filed late last month by Lake County residents and a corporation seeking to block the development of the T5 @ Chicago IV data center campus
lakemchenryscanner.com (opens in a new tab), news outlet (the month its own sentence names; no day is given; filed under Aug 30, 2026)
Johnson's executive order last month added some regulations surrounding noise and air pollution for data centers.
blockclubchicago.org (opens in a new tab), local outlet (the month its own sentence names; no day is given; filed under Aug 1, 2026)
Reported in July 2026, dated only by the article that carried them: 2 acts
Village of South Elgin attempted to advance a data center proposal
facebook.com (opens in a new tab), social media (dated only by the report that carried it, so under the month of the report)
Karis Critical withdrew rezoning request for data center in Hoffman Estates
datacenterdynamics.com (opens in a new tab), trade press (dated only by the report that carried it, so under the month of the report)
1 more report of this
- Reported July 1 Developer withdrew rezoning request for data center in Hoffman Estates capitolnewsillinois.com (opens in a new tab)
June 2026 2 acts on the line from 4 reports; 1 reported; 1 line of background, plans and statements
Lake County Board administrative hold placed on data center construction for 120 days on June 9, 2026
chronicleillinois.com (opens in a new tab), local outlet
Gov. Pritzker in June suspended state tax breaks for datacenters in effect since 2020
chicagotribune.com (opens in a new tab), local outlet (the month its own sentence names; no day is given; filed under Sep 10, 2026)
2 more reports of this
- June, no day given Illinois Governor JB Pritzker suspended state tax breaks for data centers in June 2026 tucson.com (opens in a new tab)
- June, no day given Gov. JB Pritzker in June suspended state tax breaks for data centers that had been in effect since 2020 nwaonline.com (opens in a new tab)
Reported in June 2026, dated only by the article that carried it: 1 act
Governor JB Pritzker announced pause in new data center tax incentives and called on General Assembly to pass legislation on data center development after legislators failed to move bill before summer adjournment.
rtoinsider.com (opens in a new tab), trade press (dated only by the report that carried it, so under the month of the report)
Also on the record for June 2026, not acts of their own: 1 line of background, plans and statements
The zoning objection period was 90 days and that time period has long passed
mundelein.org (opens in a new tab) (a description, not an act)
April 2026 5 acts on the line
Sangamon County Board held a discussion on data center on April 7
capitolcitynow.com (opens in a new tab), news outlet
Sangamon County Board approved a conditional permitted use for a data center on 280 acres of farmland by a vote of 17-10 on April 7, 2026
illinoistimes.com (opens in a new tab), local outlet
Sangamon County Board approved a resolution for the CyrusOne data center April 7
springfieldbusinessjournal.com (opens in a new tab), news outlet (the day its own sentence names; filed under Jul 9, 2026)
Champaign County implemented 1 year moratorium on large data center construction in April 2026
ipmnewsroom.org (opens in a new tab), local outlet (the month its own sentence names; no day is given; filed under Sep 1, 2026)
Champaign County Board enacted a moratorium in April halting all data center construction, set to expire the following year.
dailyillini.com (opens in a new tab), news outlet (the month its own sentence names; no day is given; filed under Apr 1, 2026)
March 2026 2 acts on the line
PowerHouse Data Centers developed a 795 acre, 1.8 GW capacity data center campus in Joliet with 24 buildings expected to generate 310 million dollars in property taxes over 30 years.
datacenterdynamics.com (opens in a new tab), trade press
In March 2026, Troy City Council voted to put a six month moratorium on any data center project.
timestribunenews.com (opens in a new tab), news outlet (the month its own sentence names; no day is given; filed under Sep 18, 2026)
2026, no month given 1 act
More than a dozen data centers near O'Hare airport received local property tax breaks in 2026.
abc7chicago.com (opens in a new tab), local outlet (the year its own sentence names; filed under Aug 29, 2026)
2025 3 acts on the line
July 2025 1 act on the line
Sangamon County adopted an ordinance in July 2025 allowing data centers
springfieldbusinessjournal.com (opens in a new tab), news outlet (the month its own sentence names; no day is given; filed under Jul 9, 2026)
2025, no month given 2 acts
Aurora enacted 180 day moratorium on data center and warehouse developments last year and passed ordinance in March requiring council approval for all new data centers
chicagotribune.com (opens in a new tab), local outlet (the year its own sentence names; filed under Sep 15, 2026)
ComEd introduced the transmission security agreement framework in 2025 in collaboration with Exelon Corp.
dailyenergyinsider.com (opens in a new tab), trade press (the year its own sentence names; filed under Sep 18, 2026)
2024 3 acts on the line
December 2024 1 act on the line
Vultr launched an AMD GPU supercomputer cluster at Centersquare's Lisle, Illinois data center, which offers 15 MW of utility power across 194,057 square feet.
datacenterdynamics.com (opens in a new tab), trade press
February 2024 1 act on the line
Endeavour Edged is building a $500 million carbon neutral data center project in three buildings at Bilter and Eola roads in Aurora.
chicagotribune.com (opens in a new tab), local outlet
2024, no month given 1 act
T5 @ Chicago IV data center campus was given approvals in 2024 and 2025 by the Grayslake Village Board
lakemchenryscanner.com (opens in a new tab), news outlet (the year its own sentence names; filed under Aug 30, 2026)