Marshall, IL: data center power outlook

Grid position at a glance

Serving utilities

AMEREN ILLINOIS COMPANY, COMMONWEALTH EDISON CO, CORN BELT ENERGY CORPORATION

ISO / market

MISO (Midcontinent Independent System Operator)

Highest grid access

138 kV

Substations in county

4

Industrial retail rate

10.1¢/kWhState-level EIA-861 industrial average. The map colours by this, not by a per-county rate.

Per-utility rates in county

3 serving utilities: 1.6 to 7.4¢/kWhLowest to highest industrial rate among the utilities serving this county (EIA-861 Sales to Ultimate Customers). A spread, not the county’s rate, and it covers only the serving utilities that report one.

Interconnection queue

3 projects, 313 MW

Proposed generation

178 MW planned or under constructionUnits filed with EIA as planned or under construction (Form EIA-860M). Declared intent from the federal inventory, not the interconnection queue and not guaranteed capacity.

Grid carbon intensity

982 lb CO2/MWh

Water withdrawals

3.3 Mgal/dAll uses, freshwater. Water already withdrawn locally, not water available for a new load.

Construction labor near site

28,789 employed in construction within ~120 km (26 of 27 counties reporting)A large build needs hundreds of skilled construction workers on site for one to three years. A county with few of them within commuting range means bussing crews in, per diem, and housing, which is real cost and schedule risk. This counts people employed in construction within about a 120 km drive (BLS QCEW), summed across nearby counties. It is not labor known to be available: most are already committed to other projects, and no public data reveals who is free.

Grid conditions in Marshall

The material below frames Marshall, Illinois for a prospective large load, drawing only on public sources. At 138 kV, Marshall sits in the transmission class that a large load would look to. Marshall, Illinois carries a thin 4-substation footprint in the mapped layer, concentrating where a connection could land.

Interconnection over Marshall runs through the MISO market (Midcontinent Independent System Operator) and its rules. For Marshall, the rate shown is the state industrial average of 10.1 cents per kWh (EIA-861), a state figure and not a county-specific one. Beneath that state average, the utilities serving Marshall that report an industrial rate span 3 serving utilities: 1.6 to 7.4¢/kWh, shown as context and never as the county rate.

The queue feeds show 3 projects for Marshall, totalling 313 MW of requested capacity. EIA-860M records 178 MW planned or under construction for Marshall. Marshall sits under a balancing authority that eGRID puts at 981.982 lb CO2 per MWh.

Marshall withdrew 3.28 million gallons per day for all uses in the USGS 2015 data, which counts demand, not headroom. About 28,789 people are employed in construction within a 120 km commute of Marshall (BLS QCEW), which frames staffing distance rather than free labour.

For Marshall, treat this as screening-grade county context useful for narrowing a search rather than settling a site. Taken together, the figures for Marshall, Illinois describe the grid around a prospective site, drawn from public data with their gaps left visible on purpose. To move past screening in Marshall, Illinois, a specific address needs its own interconnection study, which this page does not attempt. The figures for Marshall, Illinois refresh as their public datasets do, and the exact sources and dates sit in the source log below this section.

Sources