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Dean H Mitchell — Power plant · Coal · Northern Indiana Pub Serv CoHOBART DATA CENTER MASS GRADING - 1 — Under construction · Large load · IN · 11.2 mi awayW 167th St — Under construction · Solar · IL · 1.5 MW · 12.0 mi awayDATA CENTER — Built · Large load · IN · 12.4 mi awayMerrillville Solar — Announced · Solar · IN · 100 MW · 14.0 mi awaySteger — Under construction · Solar · IL · 2 MW · 14.7 mi away
  • Combustion
  • Wind & solar
  • Loads
  • In development
  • Under construction
  • Operating
  • Retired
  • Size not stated
  • 10 · 100 · 1,000 MW

Dean H Mitchell

Power plant · Coal

Key facts

Power plant · Coalran 0% of 2012 Retired
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1956
Net generation, 2012
362 MWh
Grid
138 kV to Northern Indiana Pub Serv Co (MISO)
Location
Lake County, Indiana
Operated by
Northern Indiana Pub Serv CoSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2001 to 2013
Fuel burned MMBtu by year, 2001 to 2013
  • Gas
  • Coal

Operations detail

Details

Who’s behind it

No companies named in filings yet.

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Technology
Coal source: “Conventional Steam Coal”
Age
70 years since 1956
All 2 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Gem
Parents
Name
NiSource Inc
Share pct
100
Gem entity id
E100000001268
Unit ids
G100000102290, G100000102291, G100000102292, G100000113026
Location id
L100000103882
Balancing authority codeMISO

Retirement

EIA-860M September 2026StatusEvery generator EIA lists at this plant has retired. As of EIA-860M for September 2026.
Retired
October 2013
First unit retired
September 2010
Capacity retired
537.6 MW
Generators retired
5
GeneratorTechnologyNameplateStateDate
11Conventional Steam Coal127.5 MWRetiredSeptember 2010
4Natural Gas Steam Turbine138.1 MWRetiredSeptember 2010
5Conventional Steam Coal128 MWRetiredSeptember 2010
6Conventional Steam Coal128 MWRetiredSeptember 2010
9ANatural Gas Fired Combustion Turbine16 MWRetiredOctober 2013
By technology
TechnologyRetiredScheduled to retire
Conventional Steam Coal383.5 MW
Natural Gas Steam Turbine138.1 MW
Natural Gas Fired Combustion Turbine16 MW

Grid

EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).
Grid voltage at the plant
138 kV
Transmission or distribution system owner
Northern Indiana Pub Serv Co
Balancing authority
Midcontinent Independent Transmission System Operator, Inc..
NERC region
RFC
Transmission lines within 15 mi (10)
Can the connection be reused?

A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.

Timeline

  • Stated Unit 9A scheduled to retire, 16 MW · EIA-860M
  • Stated Units 11, 4, 5, 6 scheduled to retire, 521.6 MW · EIA-860M
  • In service · EIA-860M

Sources

5 sources

Sources EIA-860M · GEM · LBNL · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
  • LBNLOpen license, with credit · retrieved Nov 13, 2026Yin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
  • EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
  • EIA-860M Preliminary Monthly Electric Generator Inventory

Every source and license · Attribution

View at source

Around this plant

Nearby

within 15 mi
ProjectKindAwayMW
HOBART DATA CENTER MASS GRADING - 1 Under construction Large load 11.2 mi
W 167th St Under construction Solar 12.0 mi 1.5
DATA CENTER Built Large load 12.4 mi
Merrillville Solar Announced Solar 14.0 mi 100
Steger Under construction Solar 14.7 mi 2

Sources EPA ICIS-NPDES · EIA-860M

Sources

Attribution