ENERGY ORGANIZATION / US-EIA861-13809

NorthWestern Energy - (SD)

U.S. EIA-861 2024 census respondentU.S. EIA scheduled generating entity

NorthWestern Energy - (SD): final 2024 EIA-861 utility/provider record plus 1 preliminary scheduled generating plants. Service territory and scheduled capacity do not prove data-center supply.

Source-established role / class: Generator / project developer · Electric utility reporting entity · EIA-861 respondent record · Distribution provider · Transmission provider · Wholesale power marketer · Bundled-service provider · Utility / power supplier
Country / scope: United States
Published geography: South Dakota
Latest source release: Aug 26, 2026

Identity and evidence classes.

Official source identifiers join records when available. Similar labels, brands, establishments, subsidiaries, parents, and affiliates remain separate until a source establishes the relationship.

Cloud Draw energy ID: us-eia861:13809
EIA-861 utility ID: 13809
EIA scheduled entity ID: 13809
Record classes: U.S. EIA-861 2024 census respondent · U.S. EIA scheduled generating entity
Source-established role / class: Generator / project developer · Electric utility reporting entity · EIA-861 respondent record · Distribution provider · Transmission provider · Wholesale power marketer · Bundled-service provider · Utility / power supplier
Original-source routes: 3

U.S. provider census record.

EIA-861 is the annual respondent spine. Detailed activities are absent for short-form respondents; a county territory means distribution equipment is present somewhere in that county, not exclusive or address-level service.

Data release: 2024 final data · updated Dec 3, 2025
Ownership class: Investor Owned
Form depth: EIA-861 detailed frame · detailed utility activity row present
Reported activities: Bundled service · Buys transmission · Distribution · Generation · Transmission · Wholesale marketing
Operating states / territories: SD
Service-territory states: SD
County territory rows: 27 unique state-county records
NERC regions: MRO
ISO / RTO flags: SPP

Form EIA-861 and EIA-861S provide the annual census frame of U.S. electric utilities, distribution utilities, and power marketers. County keys preserve the exact published State|County service-territory values for discovery; they are not an address, an exclusive franchise boundary, or proof that the organization serves a specific data center, has available capacity, or holds a current site contract.

Open EIA-861 source and files ↗

Scheduled generating projects.

June 2026 EIA schedule for 2026-07 through 2027-06. Generation and storage form one technology split; construction and earlier-stage status form a second overlapping split. They are not added across axes.

Scheduled plants: 1
Scheduled units: 2
Plant producer classes: Electric Utility
Total net summer: 30 MW
Generation: 30 MW
Storage power: 0 MW
Construction / complete: 30 MW
Earlier stage: 0 MW
Schedule window: 2026-10 → 2026-10

EIA plant 3338SD

Aberdeen CT

30 MW net summer30 MW generation · 0 MW storage power
30 MW construction / complete0 MW earlier stage · overlapping status axis

Units: 2 · 3, 4
Nameplate: 32 MW
Technology: Natural Gas Fired Combustion Turbine
Schedule: 2026-10 → 2026-10

(V) Under construction, more than 50 percent complete

Preliminary scheduled capacity is not guaranteed completion, expected MWh, a data-center allocation, or proof of a power contract.

EIA Table 6.5 workbook ↗