Calhoun, AR: data center power outlook

Grid position at a glance

Serving utilities

ENTERGY ARKANSAS LLC, OUACHITA ELECTRIC COOP CORP

ISO / market

MISO (Midcontinent Independent System Operator)

Highest grid access

500 kV

Substations in county

5

Industrial retail rate

6.7¢/kWhState-level EIA-861 industrial average. The map colours by this, not by a per-county rate.

Per-utility rates in county

2 serving utilities: 6.4 to 9.1¢/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

9 projects, 3,455 MW

Proposed generation

None on file (EIA-860M)Units 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

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 Water already withdrawn locally, not water available for a new load.

Construction labor near site

6,356 employed in construction within ~120 km (21 of 24 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 Calhoun

The sections below set out what public data shows about siting a large electrical load in Calhoun, Arkansas. At 500 kV, Calhoun carries high-voltage transmission at its strongest mapped point. Calhoun, Arkansas shows 5 substations in the mapped layer, a thin spread across the county.

Wholesale activity over Calhoun clears through the MISO market (Midcontinent Independent System Operator), whose footprint sets how interconnection requests and capacity are handled. Calhoun carries the state industrial average retail rate of 6.7 cents per kWh from EIA-861, applied statewide. For Calhoun, the per-utility spread is 2 serving utilities: 6.4 to 9.1¢/kWh, which qualifies but never replaces the state average.

Calhoun carries 9 projects in the interconnection queue, totalling 3,454.5 MW of requested capacity. No generation is filed as planned or under construction in Calhoun, Arkansas in the federal EIA-860M inventory, a measured zero rather than missing data. In eGRID, the balancing authority over Calhoun shows 981.982 lb CO2 per MWh.

For Calhoun, the USGS 2015 compilation records 0.3 million gallons per day of all-use freshwater withdrawals, not water available to a new load. Calhoun sits within commuting range of roughly 6,356 construction workers (BLS QCEW, about 120 km), most already committed elsewhere.

Every figure for Calhoun here is screening-grade and describes the county as a whole, not any single parcel within it. None of the figures for Calhoun, Arkansas settles a site on its own; each one qualifies the others, and all of them come from public federal and state datasets. Settling a site in Calhoun, Arkansas requires a study of the specific parcel, a step beyond the county-level picture drawn here. Sources and data dates for Calhoun, Arkansas are logged directly below, so each figure on this page can be traced back to its public dataset.

Sources