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100 MW Solar operating in Gratiot, MI
100 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Coordinates
43.2075, -84.5291
County
Gratiot, MI
Nearby Plants
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
See the full risk decomposition + scenarios for this asset.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | DTE Electric Company | DTE Electric Company | — |
| Owner(s) | DTE Electric Company | DTE Energy | — |
| Status | Operating | operating | — |
Polaris Solar Park is a 100 MW solar photovoltaic power plant located in Gratiot County, Michigan. The plant, which began operating in 2025, is owned by DTE Energy and operated by DTE Electric Company. It consists of a single generator utilizing fixed-tilt solar tracking technology. Polaris Solar Park ranks as the 21st largest solar facility in Michigan and 615th nationally.
The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority, in the ReliabilityFirst Corporation (RFC) NERC region. In its latest year of operation, Polaris Solar Park generated 58,951 MWh of electricity, achieving a capacity factor of 13.3%.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
5.7K MWh
Latest Month
59.0K MWh
Annual Generation
13.3%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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2023
$1,606/kW
Est. Construction Cost
Total estimated cost: $160.6M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Point of Interconnection
Nearest Substation
Slate Substation · 345 kV
Substation Distance
0.23 km
Operator
ITC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
CONS.POLRS.SOL
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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