Demille Solar Farm — Plant Summary
- EIA Plant ID
- 60346
- Capacity
- 28.4 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Lapeer, MI
- Operating Since
- 2017
- Generators
- 1
- Operator
- DTE Electric Company
- Parent Company
- DTE Energy
- Annual Generation
- 35,810 MWh
- Capacity Factor
- 14.3%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- RFC
Demille Solar Farm
OperatingSolar
Ranked #29 of 85 Solar plants in MI#1498 of 7447 nationally
28.4 MW Solar operating in Lapeer, MI — Midcontinent Independent Transmission System Operator, Inc..
EIAGEMWD
28.4 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2017
Operating Since
Location
Coordinates
39.9847, -74.2376
County
Lapeer, MI
Nearby Plants
- EDF Ph1 Toms RiverSolar21.3 MW · 0.1 km
- Toms River CSGSolar4 MW · 0.3 km
- Ocean County LandfillLandfill Gas14.4 MW · 4.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | DTE Electric Company | DTE Electric | — |
| Owner(s) | DTE Electric Company | DTE Energy | — |
| Status | Operating | operating | — |
Ownership Chain
About
Demille Solar Farm is a 28.4 MW solar photovoltaic power plant located in Lapeer County, Michigan. The plant, which began operating in 2017, is owned and operated by DTE Electric Company, a subsidiary of DTE Energy. It utilizes a fixed-tilt solar tracking system. Demille Solar Farm is connected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and resides within the ReliabilityFirst Corporation (RFC) NERC region.
The plant's latest annual generation was 35,810 MWh, resulting in a capacity factor of 14.3%. Demille Solar Farm is the 29th largest solar plant in Michigan out of 84, and ranks 1302 nationally out of 7108 plants. Financial data indicates an installed cost of $1950.77 per kW, with data sourced from FERC filings.
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
41.57 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
451 MWh
Latest Month
35.8K MWh
Annual Generation
14.3%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1HIGH
$2,141/kW
Installed Cost
DTE Electric Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MICHIGAN.HUB
Node Source
OSM spatial match
Lapeer 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