Sauk Solar Park — Plant Summary
- EIA Plant ID
- 67942
- Capacity
- 150 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Branch, MI
- Operating Since
- 2025
- Generators
- 1
- Operator
- DTE Electric Company
- Parent Company
- DTE Energy
- Annual Generation
- 209,405 MWh
- Capacity Factor
- 15.9%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- RFC
Sauk Solar Park
OperatingSolar
Ranked #7 of 85 Solar plants in MI#551 of 7447 nationally
150 MW Solar operating in Branch, MI — Midcontinent Independent Transmission System Operator, Inc..
EIAGEM
150 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Location
Coordinates
42.0620, -85.1030
County
Branch, MI
Nearby Plants
- Greenstone Solar, LLCSolar20 MW · 13.4 km
- Tibbits Energy StorageBESS104.9 MW · 15.3 km
- DG AMP Solar ColdwaterSolar1.3 MW · 16.7 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | DTE Electric Company | DTE Electric Company | — |
| Owner(s) | DTE Electric Company | DTE Energy | — |
| Status | Operating | operating | — |
Ownership Chain
About
Sauk Solar Park is a 150 MW solar photovoltaic power plant located in Branch County, Michigan. The plant, which began operating in 2025, is owned by DTE Energy and operated by DTE Electric Company. It utilizes a fixed-tilt solar tracking system. The plant is interconnected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and resides within the ReliabilityFirst Corporation (RFC) NERC region.
In its latest year of operation, Sauk Solar Park generated 209,405 MWh of electricity, achieving a capacity factor of 15.9%. The plant ranks as the 10th largest solar facility in Michigan out of 21, and 393rd nationally out of 639. Financial data indicates an installed cost of $1812.43 per kW, as reported to the Federal Energy Regulatory Commission (FERC). The plant has one generator.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Interconnection Queue1 projectBeta
OperationalSolar150 MWMISOLBNL + Live
Generation
8.4K MWh
Latest Month
209.4K MWh
Annual Generation
15.9%
Capacity Factor
Financial DataBeta
Source: FERC Form 1HIGH
$1,812/kW
Installed Cost
DTE Electric Company
Reporting Utility
Pricing & Market Data
MEDIUM confidencePoint of Interconnection
Nearest Substation
Wagner Substation · 138 kV
Substation Distance
< 10 km
Operator
ITC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MICHIGAN.HUB
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
Union City SubstationSubstation
News & Articles (10)Beta
General
US Roundup: solar-plus-storage projects advance across the country
Updates on solar-plus-storage projects from Google and DTE Energy, Sunraycer, Invenergy and SRP, Idemitsu Renewables, and Clēnera.
Energy-Storage.News·6 days ago
General
US Roundup: solar-plus-storage projects advance across the country
Updates on solar-plus-storage projects from Google and DTE Energy, Sunraycer, Invenergy and SRP, Idemitsu Renewables, and Clēnera.
Energy-Storage.News·6 days ago
General
DTE Energy sues St. Clair County over solar energy regulations
DTE Energy has filed a lawsuit against St. Clair County over its recent regulations on solar energy facilities. In its lawsuit, the energy...
Times Herald·8 months ago
General
DTE Energy sues St. Clair County over solar energy regulations
DTE argues the county's rules are preempted by state regulations.
Times Herald·8 months ago
Last updated 2026-03-26
View all 10 articles