Johnson, IA: data center power outlook

Grid position at a glance

Serving utilities

AMANA SOCIETY SERVICE CO, BOARD OF WATER ELECTRIC & COMMUNICATIONS, EAST-CENTRAL IOWA RURAL ELEC COOP, EASTERN IOWA LIGHT & POWER COOP, FARMERS ELECTRIC COOP - (IA), INTERSTATE POWER AND LIGHT CO, LINN COUNTY REC, MIDAMERICAN ENERGY CO, T I P RURAL ELECTRIC COOP

ISO / market

MISO (Midcontinent Independent System Operator)

Highest grid access

345 kV

Substations in county

23

Industrial retail rate

7.2¢/kWhState-level EIA-861 industrial average. The map colours by this, not by a per-county rate.

Per-utility rates in county

7 of 9 serving utilities: 6.0 to 10.6¢/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

4 projects, 303 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

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 Water already withdrawn locally, not water available for a new load.

Construction labor near site

36,601 employed in construction within ~120 kmA 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 Johnson

The material below frames Johnson, Iowa for a prospective large load, drawing only on public sources. Grid access in Johnson extends to 345 kV, a high-voltage line class. The mapped layer packs 23 substations into Johnson, a dense spread of options.

Interconnection over Johnson runs through the MISO market (Midcontinent Independent System Operator) and its rules. For Johnson, the rate shown is the state industrial average of 7.2 cents per kWh (EIA-861), a state figure and not a county-specific one. Beneath that state average, the utilities serving Johnson that report an industrial rate span 7 of 9 serving utilities: 6.0 to 10.6¢/kWh, shown as context and never as the county rate.

The queue feeds show 4 projects for Johnson, totalling 303.23 MW of requested capacity. EIA-860M lists nothing planned or under construction for Johnson, Iowa, which is a national filing and so a real zero. Johnson sits under a balancing authority that eGRID puts at 981.982 lb CO2 per MWh.

Johnson withdrew 39.68 million gallons per day for all uses in the USGS 2015 data, which counts demand, not headroom. About 36,601 people are employed in construction within a 120 km commute of Johnson (BLS QCEW), which frames staffing distance rather than free labour.

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

Sources