Charles Mix, SD: data center power outlook

Grid position at a glance

Serving utilities

BON HOMME YANKTON EL ASSN, INC, CENTRAL ELECTRIC COOP, INC - (SD), CHARLES MIX ELECTRIC ASSN, INC, DOUGLAS ELECTRIC COOP, INC, NIOBRARA VALLEY EL MEMBER CORP, NORTHERN STATES POWER CO - MINNESOTA, NORTHWESTERN ENERGY - (SD), ROSEBUD ELECTRIC COOP INC, SOUTHEASTERN ELECTRIC COOP INC - (SD), TOWN OF PICKSTOWN - (SD), WAPA-- WESTERN AREA POWER ADMINISTRATION

ISO / market

SPP (Southwest Power Pool)

Highest grid access

345 kV

Substations in county

23

Industrial retail rate

8.7¢/kWhState-level EIA-861 industrial average. The map colours by this, not by a per-county rate.

Per-utility rates in county

6 of 11 serving utilities: 1.9 to 10.3¢/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

None on record

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

872 lb CO2/MWh

Water withdrawals

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 Water already withdrawn locally, not water available for a new load.

Construction labor near site

3,476 employed in construction within ~120 km (20 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 Charles Mix

Read on for the public power picture of Charles Mix in South Dakota, assembled for data center siting. At 345 kV, Charles Mix carries high-voltage transmission at its strongest mapped point. Charles Mix contains 23 mapped substations, a dense footprint that spreads interconnection options across many points.

Wholesale activity over Charles Mix clears through the SPP market (Southwest Power Pool), whose footprint sets how interconnection requests and capacity are handled. Charles Mix carries the state industrial average retail rate of 8.7 cents per kWh from EIA-861, applied statewide. For Charles Mix, the per-utility spread is 6 of 11 serving utilities: 1.9 to 10.3¢/kWh, which qualifies but never replaces the state average.

Charles Mix, South Dakota shows no interconnection-queue project in the covered feeds, whether from real quiet or a feed not yet loaded. No generation is filed as planned or under construction in Charles Mix, South Dakota in the federal EIA-860M inventory, a measured zero rather than missing data. In eGRID, the balancing authority over Charles Mix shows 871.526 lb CO2 per MWh.

For Charles Mix, the USGS 2015 compilation records 10.76 million gallons per day of all-use freshwater withdrawals, not water available to a new load. Charles Mix sits within commuting range of roughly 3,476 construction workers (BLS QCEW, about 120 km), most already committed elsewhere.

Every figure for Charles Mix here is screening-grade and describes the county as a whole, not any single parcel within it. None of the figures for Charles Mix, South Dakota 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 Charles Mix, South Dakota requires a study of the specific parcel, a step beyond the county-level picture drawn here. Sources and data dates for Charles Mix, South Dakota are logged directly below, so each figure on this page can be traced back to its public dataset.

Sources