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150 MW Solar operating in Branch, MI — Midcontinent Independent Transmission System Operator, Inc..
150 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Coordinates
42.0620, -85.1030
County
Branch, MI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | DTE Electric Company | DTE Electric Company | — |
| Owner(s) | DTE Electric Company | DTE Energy | — |
| Status | Operating | operating | — |
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
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
8.4K MWh
Latest Month
209.4K MWh
Annual Generation
15.9%
Capacity Factor
Solar photovoltaic · DTE Electric Company · Data from 2024
$1,812/kW
Installed Cost
$156944.3/MWh
Operating Cost
Point 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.
Last updated 2026-03-26
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Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility