Microsoft Sioux Falls (proposed)
Sioux Falls, Minnehaha County, SD
Microsoft Sioux Falls (proposed) is a proposed data center in Minnehaha County, SD, operated by Microsoft Data Center LLC and ultimately owned by Microsoft Corporation. DataCentersExposed has documented 720 MW of reported power capacity at this site.
Reporting by Eric Keller · Updated Jun 14, 2026
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Minnehaha, South Dakota
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Sourced arguments and ready-to-send letters — every figure links to a primary record. Edit to add your own story.
720 MW of new demand — roughly a city of 576,000 homes.
Large new loads can raise transmission and capacity costs that land on every ratepayer. Residential power in SD is 14.5¢/kWh, up 8.6% year-over-year. (MW→homes is a rough ~800/MW planning figure.)
SourceDemand a full, public review — not a rubber stamp.
Ask for an independent noise study, a water-and-power impact assessment, enforceable conditions (setbacks, hours, cooling type), and that the record stays open for written comment. Procedural shortcuts have voided approvals elsewhere.
Edit freely before sending — it's a starting point. Add your own story; personal comments carry the most weight.
Edit freely before sending — it's a starting point. Add your own story; personal comments carry the most weight.
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Neighbors taking a stand
Overview
Microsoft Sioux Falls is a proposed hyperscale data center in Sioux Falls, Minnehaha County, South Dakota, operated by Microsoft Data Center LLC and ultimately owned by Microsoft Corporation. First proposed in 2024, the project carries a reported power capacity of 720 MW, drawing from Sioux Valley SW Elec Coop within the SWPP balancing authority.
Operator chain
- Ultimate parentMicrosoft Corporation
- Files asMicrosoft Data Center LLC
- This facilityMicrosoft Sioux Falls (proposed)
The grid behind this site, right now
source: SPP · gridstatus- Natural Gas45.0%
- Coal31.0%
- Wind10.6%
- Hydro4.9%
- Solar4.5%
- Nuclear3.4%
Real-time generation mix for the SPP grid this site draws from, as of Jul 15, 2026, 9:30 PM. ISO-wide, not this facility's own metering. Source: gridstatus.
Grid & water — why here
source: HIFLD · EPAThe closest existing grid infrastructure and the municipal water system this location sits in — the same constraints the buildout model screens on (it won't site a campus more than ~2 km from a substation or ~5 km from municipal water). Distances are straight-line to public HIFLD/EPA features, not a metered connection.
In the news
source: GDELTData-center discussions in Minnehaha County
source: LocalView (CC0)Local-government meetings in this county that discussed data centers, each cued to the moment. From the public LocalView corpus of government meetings on YouTube — a county-level signal, not necessarily about this specific site.
Tax breaks & subsidies
source: Good Jobs First / GASB 77No per-deal tax break is linked to this site yet. No state discloses the recipient of a data-center abatement at the facility level, so per-site deals are rare in the public record. If you have a development agreement or board resolution for this site, send it to us.
Water use
No measured record exists, so this is a low-confidence model from 720 MW (disclosed IT power): 1.2 L/kWh cooling (cool climate) + 0.45 gal/kWh embedded in US grid average. How we estimate. Have a utility document? Send it and we'll replace this with the real figure.
EPA permits & violations
source: EPA ECHONo reported violations as of last sync.
Air quality near this site
source: AirNowAir Quality Index from the nearest AirNow reporting area (Sioux Falls), as of 2026-06-10. Regional context — not this facility's own emissions.
Who lives nearby
source: Census ACS 2023Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.
Nearest school
source: HIFLD / NCESThe nearest public school, Renberg Elementary - 42 in Renner, is 1.4 mi from this site (215 students).
Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).
Hearings timeline
No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.