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Data centers power almost everything we do online, from streaming a show to backing up photos — yet communities are increasingly pushing back as those facilities strain local water, power and planning systems. Recent local and state actions show why this debate matters now: municipalities are writing rules and lawmakers are proposing reporting and cost-shift bills as electricity prices and public scrutiny rise.
Nearly 300 people tuned in Aug. 31 for a public panel on data centers hosted by community groups in the Fox Valley region, with about 100 attending in person at Elgin Community College and 200 joining remotely. The discussion brought together municipal leaders, utility advocates, a cooling-system engineer and a former legislator to map the trade-offs cities face when data centers arrive.
The panelists included Aurora Sustainability Director Alison Lindburg, Citizens Utility Board representative Matt Harvey, cooling specialist Don Johnson and attorney and ex-state representative Steve Andersson.
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Local rules and a pause on approvals
Faced with a surge of proposals, Aurora imposed a six-month moratorium on new data center permits while staff developed stricter standards. The city moved quickly: public meetings attracted hundreds, and a revised ordinance took effect March 24.
Those standards aim to make project impacts visible and enforceable before construction begins. Among the requirements Aurora adopted are:
- Public review through conditional-use hearings
- Comprehensive studies — including water availability, energy demand and noise
- Daytime and nighttime noise and vibration limits
- Caps on water withdrawal and overall energy consumption
- Restrictions on certain cooling methods and on sourcing from nuclear power
City staff said some cooling technologies prompted additional oversight because the chemicals used in coolant systems pose disposal risks when water is cycled or replaced.
Scale, taxes and resource demand
Data centers are a big and fast-growing industry. Lindburg noted the global market is currently valued in the hundreds of billions and is expected to expand substantially in the coming decade, a trend that keeps municipalities interested in the tax revenue these facilities can bring.
For example, a 100-megawatt campus in Aurora was estimated to generate roughly $1 million in annual utility tax receipts for the city — funds that go directly to municipal coffers, she said.
At the same time, some facilities consume enormous quantities of water: large campuses can use the equivalent daily water needs of towns with population counts in the tens of thousands. That has pushed some communities to require limits and monitoring of water use and chemical handling.
Electricity, capacity charges and statewide proposals
Panelists stressed that power demand is the central fiscal and environmental pressure from data centers. Lindburg warned most of the electricity currently supplying these facilities comes from fossil sources and that planned expansion could double data-center energy use in a few years, complicating greenhouse-gas reduction goals.
Locally, Aurora saw a 24% spike in electric costs during 2025 that utilities attributed in part to new data-center load. At the regional level, Northern Illinois sits on the PJM grid, which coordinates supply across 13 states and 67 million customers. Harvey explained how the capacity market — payments made to ensure future availability of power — shows up on household bills: communities help pay not only for current consumption but for that reserve capacity.
He added that capacity-auction results recently pushed rates in ComEd territory significantly higher than a year earlier.
State lawmakers are responding. Proposals under consideration include a reporting requirement to track energy and water use by large facilities (Senate Bill 2181) and legislation aimed at ensuring data centers cover the costs they impose on the grid and local resources, sometimes referred to as the POWER Act in committee filings.
How cooling choices and size change impacts
Cooling is where engineering meets community effects. Johnson described two common approaches: using water in a loop that absorbs heat and must later be discharged or using air to carry heat away. Both have trade-offs: water systems can stress supplies and raise disposal questions; air systems release significant volumes of heated air into the atmosphere.
He offered a concrete comparison: a proposed 48-megawatt facility would, under certain cooling scenarios, release a stream of heated air equivalent in footprint to a football field each hour — a scale that concerns neighbors and local planners.
Johnson also noted that some operators use trucked, closed arrangements that avoid tapping municipal supplies; those systems can be efficient but still require oversight when chemicals or thermal discharges are involved.
Zoning and municipal tools
Andersson emphasized procedural safeguards. Without clear zoning rules, he said, developers can seek to site data centers under broad industrial or logistics classifications and argue they are functionally similar — a loophole communities should close.
He urged cities to rely on conditional- and special-use permits so data centers are not permitted by right, and he highlighted annexation as one lever local governments can use to attach conditions to development proposals. Such controls give municipalities negotiating power over infrastructure, siting and community benefits.
The panel made clear that responses will vary by place: some towns welcome the economic boost, others prioritize resource protection and neighborhood quality of life. The discussion also signaled a growing alignment among municipal officials, consumer advocates and engineers seeking both transparency and cost allocation changes.
- Immediate stakes: higher local electric bills, pressure on water supplies, noise and heat concerns
- Policy responses: temporary moratoria, conditional-use zoning, state reporting requirements and bills to shift costs
- What to watch next: regulatory language in Springfield and capacity-auction outcomes affecting utility rates
The meeting, convened by community groups in the Fox Valley, also served as an organizing moment: attendees and local officials left with concrete examples of rule language and a clearer sense of the infrastructure and fiscal trade-offs at stake as data centers proliferate.
